12016 ISSUE 2

ACDelco celebrates

its centennial

this year and it all

started with “AC” in

ACDelco – Albert

Champion. He came

to the United States

around the turn of

the 20th century

as a bicycle racer and tried his hand at racing motorcycles and automobiles.

A serious crash sidelined his motorsports career, so Champion used his

recuperative time to study automotive engineering, focusing on electrical

systems.

His work led to the creation of the spark plug company bearing his initials, which

was purchased by General Motors. Importantly, it was a pillar of the United

Motors division developed in 1916 by GM founder William “Billy” Durant, which

evolved into ACDelco decades later.

To mark the 100-year milestone we’re planning to have the biggest celebration

ever and you can participate! If you host a Knowledge is Power Seminar,

open house, or a customer appreciation event this year, ACDelco offers party

decorations/enhancements and party favors for your guests – all featuring a

centennial theme. Be on the lookout for these items on the ACDelco 1store

(www.acdelco1store.com) in April.

2016 ISSUE 2

Celebrate ACDelco’s Centennial WHAT’S INSIDE

IN THE NEWS

New brake technology video...........................................

Spring Car Care Month.....................................................

Camaro ZL1 is Ready for all Comers.............................

All-new Chevrolet Bolt EV...............................................

ACDelco’s new Pandora station.....................................

pg 2

pg 3

pg 5

pg 8

pg 8

the service bay

Replacement Battery Specifications..............................

Beam wiper blade installation..........................................

2.8L Duramax diesel turbo...............................................

Adaptive Cruise Control sets the pace..........................

pg 4

pg 6

pg 6

pg 10

training

Electric power steering seminar.....................................

Training schedule................................................................

pg 7

pg 12

product

New powersport batteries............................................... pg 3

running the business

Service Programming System tutorial...........................

2016 spark plug rebate.....................................................

pg 2

pg 5

tech tips

Chevy Cruze engine stall..................................................

Silveardo/Sierra diesel wiring harness..........................

Buick connector corrosion correction..........................

pg 9

pg 9

pg 9

Continued on next page...

2 2016 ISSUE 2

Be Certain. It’s the tagline for

ACDelco’s latest campaign

and the foundation on which

it’s built. The importance of

certainty is demonstrated in

a new video by custom car

builder Adam Genei, who

explains the physics involved in bringing a

modern vehicle to a halt, using items such

as a swinging tractor tire and billiard balls to

demonstrate the kinetic energy involved.

It’s a fascinating, informative look at the

science of stopping for viewers who don’t

work on cars and don’t have an engineering

degree. It’s also the first in a series of

similarly themed videos that will explore

more aspects of automotive technology

while reinforcing the reasons your

customers can Be Certain with ACDelco.

Go to ACDelco’s channel on youtube.com

to check it out.

The Science of Stopping explained in new ACDelco Video

They include:

Party Decorations and

Enhancements (subject to

change)

• Red, white and blue

balloons

• Plates with centennial

logo

• Napkins with centennial

logo

• Customizable flyers

• Selfie Sticks -take a

picture at your event

and tag us in it using the

hashtag #ACDelco100

on social media!

• Banner

• Logo for birthday

cake and application

instructions

Party Favors (subject to

change)

• Notepads

• Pens

• Stickers

• Domed Stickers

• Window clings.

We’ll have more centennial

news in the coming months!

Continued from cover

The Service Programming System (SPS)

tutorial is in high demand with its step-

by-step instructions for programming

GM vehicles. SPS is undoubtedly one

of the most critical tools for repairing

today’s vehicle. For most shops, service

programming provides a significant revenue

stream and can be a key competitive

differentiator.

SPS is available through an online TIS2Web

subscription to update the flash calibration

files stored in a vehicle’s onboard control

modules. Using a J2534 programming

interface device, SPS communicates

with a vehicle control module to modify

it or reprogram it with newer calibration

information.

Service programming is not complicated,

but it must be done right. The good

news is shops that use ACDelco’s service

programming subscription may find the

service programming learning curve is

easier than expected. With the right tools

and an inexpensive SPS subscription,

independent service centers can program

vehicle control modules themselves to

maximize the potential of many repairs, as

well as reducing the time and expense of

outsourcing the work.

ACDelco’s short SPS video is a key

resource along with 11 additional TIS2Web

tutorial videos available to help support

independent repair shops that diagnose

and program GM vehicles. Visit www.

gmtis2webhowto.com to view the full

suite of TIS2Web tutorials – available at no

charge.

GMSi and TIS2Web software applications

are available via a web-based subscription

service. For more information, go to

www.acdelcotechconnect.com or log on at

www.acdelcotds.com.

Service Programming System Tutorial Available Through TIS2Web

32016 ISSUE 2

Spring is finally here, launching a season of blooming trees

and flowers, warmer temperatures and plenty of outdoor fun.

Even if there is another cold blast in the forecast, April is Spring

Car Care Month and it’s a great time to promote a vehicle

inspection to your customers, who are ready to wash the road

salt off their vehicles.

Harsh winter conditions sometimes impact a vehicle that has

been driven in cold, snow, ice and slush, resulting in weakened

part systems. ACDelco recommends having a service

technician inspect vehicles that may have been adversely

affected by freezing temperatures, slick roads and ever-painful

potholes.

Here are five components that should be inspected this spring

to maintain top-performing vehicles:

• Battery – Ensure that the battery is corrosion-free and

connected cleanly and securely.

• Belts and hoses – Look for wear and tear such as cracks,

brittle or frayed sections and parts that have come loose.

• Brakes – Inspect linings, rotors and drums for worn or

cracked areas.

• Cabin air filters – Replace filters to remove debris.

• Windshield wiper blades – Test wiper blades for clearness

during precipitation and replace if there are any blind

spots.

ACDelco is also promoting Spring Car Care Month with several

marketing pieces you can use at your shop, including:

• A Car Care video promoting the event on social media

channels such as YouTube, Twitter and Facebook

• Social media posts highlighting special offers and

giveaways

• Press releases

• Live read radio scripts made available for you to market

your shop

• Updated mastheads on all websites and social channels

• A Car Care Month landing page that leads to a service

locator

• Infographic image in a modern format that can be used

socially and on site

• Paid social posts for owner targeting on social media

• OLA retargeting to complement the parts OLA is running

• Information appearing in consumer publications.

ACDelco has introduced four new battery

part numbers for Powersport vehicles,

enhancing opportunities for new sales at

your shop. These part numbers cover the

following applications:

The four new part numbers are available

for purchase from the Battery Distribution

Center (BDC). Normal battery ordering

processes apply. See Bulletin 16D-016 for

additional details.

Celebrate Spring Car Care Month

Four New Powersport Battery Numbers Released

AB16ALA2 FloodedYamaha Snowmobiles 1985-2003 Ducati/Motorcycles 1981-2000 Yamaha Motorcycles 1984-2007

ATX12ABS AGMSuzuki Motorcycles 2004-2015 Piaggio Vespa 2010-2015

ATX20CHBS AGMSuzuki All-Terrain Vehicles 2002-2015 Kawasaki Motorcycles 1992-2015 Moto Guzzi Motorcycles 2005-2015

ATX30LBSA AGM Harley-Davidson Motorcycles 1997-2015 (The ATX30LBSA now has an improved terminal adaptor for Harley-Davidson applications.)

BATTERY PART NUMBER BATTERY TYPE VEHICLE

4 2016 ISSUE 2

Knowing the correct battery cold cranking amperage (CCA)

ratings and type are critical when evaluating battery test

results for a discharged battery. It may be difficult to see

the battery specification label with the Original Equipment

Manufacturer (OEM) part number and CCA rating and type

without removing the battery or other components.

GM has released an updated battery specifications table in

Bulletin #15-06-03-002A. It lists the original equipment

ratings and part numbers used to set up a proper battery test.

It also provides the ACDelco part number for the correct

ACDelco battery warranty replacement. The ACDelco battery

warranty replacement in the catalog is designated by the

“Original Equipment Replacement” note in the description field.

Battery Testing

When testing batteries, always perform the following:

• Select “Out of Vehicle” when setting up the test.

• Disconnect both battery cables from the battery. The

battery does not need to be removed from the vehicle.

• Connect the battery tester, such as the Midtronics EL-

50313 Battery Tester or equivalent, directly to the battery

terminal posts.

• Select the correct CCA. The battery should be close to

room temperature and not frozen.

• Select the proper battery type; Flooded, AGM, or Stop/

Start AGM (Auxiliary Battery). Spiral AGM is not used by

GM. The proper battery type must be selected to prevent

battery damage and ensure correct test results.

Cold Batteries

If a battery has set for a long period of time or has set in cold

weather, the long stand time can affect the testing results.

Inside a conventional lead acid battery, the electrolyte is

generally composed of 35-percent sulfuric acid and 65-percent

water. When a lead acid battery is inactive (not actively

discharged and charged), the acid, being heavier than water, will

settle toward the bottom. This leaves a low acid concentration

near the top and a higher concentration at the bottom, referred

to as acid stratification. Since it is the concentration of the

sulfuric acid that lowers the electrolyte freeze point, the upper

levels of the acid (with low acid concentration) in this state can

begin freezing at or near 32° F (0° C). Stratification does not

affect AGM-type batteries.

In a low state of charge (SOC), lead sulfate will form on the

battery plates. This creates a sulfated

battery condition where the lead sulfate

insulates the plate’s reactive material,

which reduces capacity and decreases the

battery’s ability to accept a charge. Sulfating

begins to occur below 80-percent state of

charge in as little as two weeks. The longer

the battery is left in a low state of charge,

the more lead sulfate forms. Batteries that

have been deeply discharged for periods

longer than 60 days may be permanently

damaged.

Batteries that are deeply discharged will take an extended time

to recharge. Batteries that are cold (below freezing) can falsely

fail testing. In these cases, the batteries must first be warmed

prior to testing and charging. It is impossible to calculate the

core temperature of a battery, so warm the battery a minimum

GM and ACDelco Replacement Battery Specifications Chart

The chart provides OEM and ACDelco part numbers,

CCA rating and battery type information.

Normal conventional battery (1) and conventional battery with acid stratification (2).

52016 ISSUE 2

RUNNING THE BUSINESS

ACDelco’s spark plug rebate program continues throughout

the 2016 calendar year so encourage your customers to take

advantage of the allowance. The “Spark Some Savings” rebate

program gives eligible customers an opportunity to apply for

rebates on qualified purchases made at a retail store or with a

professional installer through Dec. 31.

Spark plug rebates are distributed

based on the following scale:

A minimum purchase of four spark

plugs is required; a maximum of 16

spark plugs per household is allowed.

Customer rebates cannot exceed $32.

Rebate pads are available on the

acdelco1store.com. They are also

accessible for download on ACDelco.

com and ACDelcotechconnect.com.

Remind Customers About 2016 Spark Plug Rebate

Professional Iridium $2

Professional Double Platinum $1.50

Rapidfire Performance Single Platinum $1

Professional Conventional $.50

REBATE PER PLUGSPARK PLUG

of 12 hours before testing. Longer warming times will be

needed depending on how cold the battery is.

Many battery testers have a built in algorithm to limit the

length of time needed to recharge a battery. For a cold battery

resistant to charge, or a deeply discharged battery, the tester

may calculate a longer than reasonable time to recover the

battery and fail it. With a newer battery that is most likely

simply discharged, set the tester to a manual charge setting and

limit the current to 10 Amps for 120 minutes. Once complete,

perform another diagnostic charge.

The Absorbent Glass Mat (AGM) battery requires different

charging voltages than lead acid batteries. Some battery

testers have an algorithm built in for AGM battery testing.

AGM must be selected when prompted or damage to the

battery will result. Make sure to select the proper battery

type: AGM and CCA during charger set up. Incorrectly

selecting “flooded” battery may cause unnecessary battery

replacements. AGM batteries are sensitive to overcharging, so

maximum charging voltage should be limited to 15.5V.

Refer to GM Bulletin #15-06-03-001A for additional

information on testing cold batteries.

Making a performance car lighter and more powerful is always

a recipe for success and that’s exactly what the engineers built

into the 2017 Chevrolet Camaro ZL1. Weighing about 200

pounds less, while packing an additional 80 hp and 60 lb-ft over

its predecessor, the new ZL1 is poised to run rings around the

competition.

That extra power comes from the LT4 supercharged 6.2L V-8,

which is estimated at 640 horsepower and 640 lb-ft of torque.

It’s backed by a six-speed manual transmission or an all-new

10-speed automatic. With smaller steps between gears, the

new 10-speed offers lightning-quick shifts designed to keep

the LT4 in its power band whenever the driver calls it up with

his or her right foot.

Additional technologies include Magnetic Ride suspension,

Performance Traction Management, electronic limited-slip

differential, Custom Launch Control and Driver Mode Selector.

It also features enormous Brembo brakes, including six-piston

monobloc front calipers matched with 15.35-inch two-piece

rotors.

The result is a one-of-a-kind driving experience designed to be

fast with finesse – whether on the highway, a drag strip or road

course. The 2017 Camaro ZL1 goes on sale later this year.

IN THE NEWS 2017 Camaro ZL1 is Ready for all Comers

6 2016 ISSUE 2

Improvements have been made to the connection system used

on ACDelco Advantage and Professional beam wiper blades

to establish a positive engagement of the blade onto Pinch Tab

wiper arms.

The following instructions will ensure that the tabs located on

the lower sides of the wiper arms will more easily align with the

tabs located at the back end of the adaptor.

1. Push the small adaptor lever toward the center of the

blade.

2. While doing Step 1, lift the factory-installed adaptor off of

the blade and discard it.

3. Locate adaptor (B) and press it onto the center of the

blade. The two nubs inside of the adaptor lock onto the

area on the blade marked “X.”

4. Hold your thumb firmly on the front of the adaptor, raising

the back end up.

5. Align the side arm tabs with the side tabs on the back end

of the adaptor, and raise the blade into the underside of

the arm.

6. Rotate the blade up until the tip of the arm locks

underneath the adaptor tab.

7. The adaptor must lock onto the arm where indicated.

See Bulletin 16D-010 or ask your ACDelco representative for

additional details.

The new 2.8L Duramax turbo-diesel is available in 2016

Colorado and Canyon LT and Z71 Crew Cab models.It

generates 181 horsepower and 369 lb.-ft. of torque, has a

compression ratio of 16.5:1, along with a common rail direct

injection fuel system, dual overhead camshafts and a variable

geometry turbocharger (VGT).

The turbocharger is water cooled and bolted to the exhaust

manifold of the engine. Its body assembly contains a contact-

less inductive VGT position sensing

element that is managed by a

customized integrated circuit. The

VGT position sensor is mounted

within the VGT body assembly and is

not serviceable. The turbocharger vanes

are normally open when the engine is not

under a load.

The ECM will close the turbocharger vanes to increase engine

power and to create a high pressure, using a boost pressure

actuator. The ECM will often close the turbocharger vanes to

create back pressure to drive exhaust gas through the exhaust

gas recirculation (EGR) valve as required. At extreme cold

temperatures, the ECM may close the turbocharger vanes

at low load conditions in order to accelerate engine coolant

heating. The ECM may also close the turbocharger vanes under

exhaust braking conditions.

Instructions Updated for Wiper Arm Installation

In Detail: The 2.8L Duramax diesel’s VGT Turbo

72016 ISSUE 2

Is it really possible that components like power steering

reservoirs and the whole hydraulic system have disappeared

from today’s modern vehicles? Electric Power Steering (EPS)

systems are now commonly found on many late-model vehicles

regardless of their price or manufacturer. That doesn’t mean

hydraulic systems are gone for good or that all your old

diagnostic and repair tools should be sold online. Traditional

hydraulic systems in one form or another, including some

electrically controlled ones, are still with us.

The new ACDelco seminar Power Steering Technology – “Is

EPS steering you in the wrong direction?” (S-SS04-09.01SEM)

highlights the numerous designs, configurations and

components of modern EPS systems.

The seminar includes several case studies that review common

service issues, covering diagnostic tips, typical causes and how

to properly diagnose and repair the concerns. The case studies

provide a descriptive investigation of a real-world issue along

with the details needed to determine the fundamental reasons

for a cause and correction.

How EPS Works

The seminar begins with a high-

level overview of

how EPS works,

starting with the early

designs that used hydraulics and a

column-mounted electric motor to control

traditional steering gears. Those basic systems relied

on a complex collection of powertrain control modules, body

control modules, and power steering control modules, plus a

bucket full of sensors and smaller motors to perform the actual

steering functions.

Newer systems moved the electric motor down to the

steering rack where force is applied directly to the rack gear.

More recently, a more robust design includes a rack specially

engineered for larger, heavier vehicles such as pickup trucks

and SUVs. With the sales of larger vehicles increasing, you’ll see

them pulling into your service center as the miles pile up.

EPS Components

Following an introduction to how all these units work, the

seminar jumps into a closer look at the individual components

common to most EPS systems, particularly torque sensors and

wheel speed sensors. It’s critical to understand the role these

parts play within the system when diagnosing a vehicle.

The seminar also includes an in-depth presentation of how EPS

reacts to three distinct vehicle speeds: parking lot speeds, low-

to-medium speeds and high speeds.

Diagnosing Steering Conditions

Using all of that as a foundation, the seminar turns its attention

to diagnostics. A scan tool is essential because the EPS system

uses information collected from vehicle speed and steering

angle sensors, Electronic Stability Control data, the EBCM, ABS

and other systems. A condition in one of those components

may affect the performance of the EPS. The seminar

reviews serial data from the EPS control module as part of a

troubleshooting process when diagnosing these other systems.

If the service repair includes replacing any components of

the EPS, it’s often necessary to perform a module setup and

programming procedure to complete the job. The seminar

covers how to perform those tasks as well.

The seminar covers

information on the hydraulic

system as well. As part of

the diagnosis of a hydraulic

power steering condition,

the power steering pressure

should be checked using

a power system pressure

tester, such as the Power

Steering Analyzer (J-44721).

This tool checks both

pressure and flow.

To learn when the Power Steering Technology seminar will be

scheduled in your area, contact your local ACDelco distributor.

To enroll in other ACDelco training courses, go to

www.acdelcotechconnect.com and click the Training tab.

New Seminar Provides Direction on Electric Power Steering Diagnosis

EPS system with

rack-mounted

motor.

Use a pressure gauge to diagnose

hydraulic pressure systems.

8 2016 ISSUE 2

TECH TIPS

PRODUCT INFO

ACDelco technical tips provide

repair information about

specific conditions on a variety

of vehicles. If you have a tough

or unusual service repair, the

Diagnostic Hotline can help.

Call 1-800-825-5886, prompt

#2, from 8 a.m. to 8 p.m. ET

Monday–Friday, to speak with a

technical expert with the latest

OEM information.

For free technical assistance and

product information regarding

specific ACDelco products, con-

tact these toll-free information

hotlines staffed by ASE-certified

technicians:

Brakes

1-888-701-6169 (prompt #1)

Chassis & ReadyStruts

1-800-270-2124

Lift Supports

1-800-790-5438

Shocks

1-877-466-7752

Starters & Alternators (New) 1-800-854-0076

Starters & Alternators (Reman) 1-800-228-9672

Steering

1-855-451-1212

Wiper Blades

1-800-810-7096

Whether you’re looking

for some upbeat tunes to

energize the service bays

or some fun music to pipe

through your shop’s lobby,

ACDelco’s all-new Pandora®

channel – Tech Tunes – offers

the perfect automotive-

themed soundtrack. The

new channel is brimming

with classic songs inspired

by the automobile and the

innovative spirits who have

passionately contributed to

its creation. All songs were

carefully selected for the

driving enthusiast in us all.

Search ACDelco or Tech

Tunes on Pandora to give it a

listen.

ACDelco’s Tech Tunes debuts on Pandora

in the news

When it goes on sale later this

year, the Bolt EV will offer more

than 200 miles of range on a full

charge based on GM estimates

(your range may be less). It also

features advanced connectivity

technologies designed to

enhance and personalize the

driving experience – and it’s

fun to drive, with 0-60 mph

performance of less than 7

seconds.

The battery system is mated to a 7.2 kW

onboard charger for regular overnight

charging from a 240-volt wall box. A typical

commute of 50 miles can be recharged in

less than two hours. An available DC Fast

Charging system enables the battery to be

charged for up to 90 miles of range in 30

minutes (outside temperatures may affect

charging times).

The unique battery pack spans the entire

floor, from the front foot well to back of the

rear seat – a layout that drove the exterior

and interior designs of the Bolt EV, giving it

a unique proportion and enabling surprising

spaciousness. Large windows, a plunging

beltline and a steeply raked windshield

contribute to the progressive profile

and emphasize the interior’s bright, airy

ambience.

Thanks to the packaging of the battery pack,

the Bolt EV’s interior offers seating for five

passengers and 16.9 cubic feet of cargo

space behind the rear seat. The flat-pack

orientation means the floor is completely flat,

which creates more storage room throughout

the cabin.

IN THE NEWS Chevrolet Bolt EV Offers Electrifying Driving Experience

92016 ISSUE 2

2011-2014 Chevrolet Cruze equipped with 1.4L turbocharger 4-cylinder engine

2011-2013 Chevrolet Silverado and GMC Sierra equipped with 6.6L Duramax diesel engine

If the ignition coil connection has fretting

on the terminals, causing a poor connection,

the engine may stall or hesitate when

accelerating from a stop.

Inspect the 7-pin coil pack connector for

poor terminal contact or fretting. Fretting

is a buildup of non-conductive insulating

oxidized debris occurring between two

electrical contact surfaces of a connection

or connector. This may be caused by

vibration; thermal cycling; poor connection/

terminal retention; micro motion; or

movement of a poorly secured connector,

component or wiring harness. Fretting

corrosion looks like little dark smudges

on electrical terminals and appears where

the actual electrical contact is being made.

In less severe cases, it may be unable to

be seen or identified without the use of a

magnifying glass. Apply dielectric lubricant

to both the component side and harness

side of the affected connector.

If terminal damage is found, replace the

coil pack connector. Refer to Ignition Coil

Replacement and Splicing Copper Wire

Using Splice Sleeves in the appropriate

Service Information.

Several gauges, including the oil pressure,

oil level or coolant temperature, may be

fluctuating and various DTCs may be set

(P0193, P0341, P0521, P0522, P0523,

P0641, P125A, P125B, P128E, P2294,

P2295, P2296, P00CA, P0090, P00CA,

P0091, P0092, P0087, P0088, P0182,

P0183, P1088) if the engine wiring harness

is rubbing on the A/C line.

If any of these conditions are present,

inspect the wiring harness for contact with

the A/C line. Repair the wiring harness and

install a tie strap to the harness to prevent

future contact with the A/C line.

Engine Stall Due to Poor Terminal Contact

Engine Wiring Harness Contacting A/C Line

Ignition coil (1) and 7-pin ignition coil wiring harness

connector (2).

Wiring harness contact with the A/C line.

Install a tie strap to wiring harness to

prevent contact.

Connector Corrosion

Conditions

2010-2012 Buick LaCrosse

and 2011-2012 Buick Regal

Possible corrosion and/or

water and dirt intrusion at

connector X403 (LaCrosse)

or X350 (Regal) may result

in an intermittent Check

Engine lamp and possible

engine stalling while driving.

Remove the appropriate

rear wheel well liner and

inspect for water/dirt

intrusion or corrosion at

the connector. If these

conditions are found,

replace both the male and

female connectors and

pack the connector with

dielectric grease.

TECH TIPS

Connector corrosion.

10 2016 ISSUE 2

The Adaptive Cruise Control (ACC) System (RPO K59,

KSG) available on 2014-2016 Chevrolet Impala, Buick

LaCrosse and Regal, Cadillac ELR and 2015-2016

Chevrolet Tahoe, Suburban, and GMC Yukon models is an

enhanced cruise control system with the ability to sense

and react to forward traffic. The system allows a driver to

maintain a driver-selected set speed when no traffic is ahead

as well as set and maintain a following time-based gap to the

preceding nearest vehicle in the vehicle’s path. The Adaptive

Cruise Control System (RPO KSG) available on 2015-2016

Cadillac Escalade models functions in a similar manner, but has

different hardware and display messages.

While in the following mode, the Adaptive Cruise Control’s

distance sensor module controls the following speed to

maintain the driver-selected following gap to the proceeding

vehicle ahead. The system will automatically adjust the speed

of the vehicle when approaching a slower moving vehicle and

will apply limited automatic braking or throttle control without

driver input when necessary to maintain the following gap

setting.

The vehicle’s speed and acceleration, as well as the speed and

acceleration of the preceding vehicle and the distance between

the two vehicles, are factors used by the Adaptive Cruise

Control module to determine the appropriate following speed.

Once the path ahead of the vehicle becomes clear, the Adaptive

Cruise Control system speeds up the vehicle to the driver-

selected set speed.

The ACC system (RPO K59) on 2015 and later Chevrolet

Tahoe, Suburban and GMC Yukon models, as well as 2014 and

later Buick Regal models equipped with a manual transmission,

will operate down to a speed of 10 mph (16 km/h). As these

vehicles reduce speed in response to a slower moving vehicle

ahead, a chime sounds when the system disengages and the

driver is expected to assume control of the vehicle.

2014 and later Chevrolet Impala, Buick LaCrosse, Regal and

Cadillac ELR vehicles equipped with an automatic transmission

have the full-speed range ACC system (RPO KSG). Vehicles

equipped with this system are capable of coming to a full stop

as long as the vehicle ahead has been detected while still

moving.

For either of these two systems, the vehicle speed must be

above 15 mph (25 km/h) and below 118 mph (190 km/h) for

Adaptive Cruise Control to be engaged by the driver.

Sensor Module

The Adaptive Cruise Control distance sensor module contains

both the radar sensor and the controller. The radar scans

the road environment to detect targets within its specified

field of view. The controller then sends throttle and/or brake

commands to the Engine Control Module (ECM) and Electronic

Brake Control Module (EBCM) for proper cruise speed

adjustment.

The radar processes the road environment to gather data

concerning any vehicle ahead. When an object is detected, the

controller calculates the object range, range rate, acceleration

and azimuth angle parameters.

The Adaptive Cruise Control distance sensor module performs

Adaptive Cruise Control state processing automatically —

speed control (the Cruise state) or gap control (the Follow

state). The normal operating state is Cruise, whereby the

vehicle speed is controlled by either brakes or throttle in order

to match the driver-selected set speed. When a preceding

forward target is identified by the radar, the system will

automatically transition into the Follow state and command

the appropriate speed in order to maintain the driver-selected

following gap behind the target vehicle.

After programming the distance sensor module and while

performing the learn procedure, the Service ACC message

on the Driver Information Center (DIC) will display and the

Vehicle Ahead indicator on the instrument cluster will flash to

indicate that the radar is in the alignment mode and collecting

data. The Service ACC message will extinguish and the Vehicle

Ahead indicator will stop flashing when the radar module has

completed the alignment process. The radar system should

become functional once the learn procedure is complete and

the diagnostic session is concluded.

Cruise Control Switch Functions

The cruise control function switches are used by the EBCM

to communicate all Adaptive Cruise Control commands to the

Adaptive Cruise Control distance sensor module.

Adaptive Cruise Control Technology Sets the Pace

112016 ISSUE 2

The Adaptive Cruise Control

switches are momentary

contact-type switches

that are hard-wired to the

EBCM. Based on voltage

variations, the EBCM is

able to communicate driver

commands to the Adaptive

Cruise Control module. The

initial press of the gap switch

recalls the current setting and

activates the display. Subsequent presses of the gap switch

will change the gap setting (Near, Medium or Far). The Driver

Information Center on the instrument cluster displays the

driver-selected following gap. This gap setting also applies to

the Forward Collision Alert system and will impact how early

or late the collision alert system will warn the driver.

The gap switch allows the driver to determine how closely

a target vehicle is followed while Adaptive Cruise Control is

engaged. The gap switch has three following gap selections

that range from 1 to 2 seconds. The distance maintained for a

selected gap will vary based on vehicle speed. The faster the

vehicle speed, the further back the vehicle follows.

Following Distance Indicator

The following distance is

expressed in time as opposed

to actual distance. If no

vehicle is detected, dashes are

shown on the display on the

instrument cluster.

Vehicle Ahead Indicator

The Vehicle Ahead indicator

is displayed on the instrument cluster when the radar identifies

an in-path vehicle, and also serves as feedback that the radar

is functioning properly. The Vehicle Ahead indicator may

sometimes display for stationary road objects.

Mechanical Alignment

When the radar is out of alignment, DTC C1002 (Distance

Sensing Cruise Control Module Performance) is set by the

Adaptive Cruise Control distance sensor module. A persistent

blockage warning message on the DIC can also be an indicator

of misaligned radar. When DTC C1002 is set, the radar must be

mechanically aligned using the special alignment tool.

An out-of-alignment condition may result from tampering or

damage to the Adaptive Cruise Control distance sensor module

from a major or minor impact to the front of the vehicle.

A damaged or misaligned radar module is not always obvious.

Sometimes, damage can occur to the module or its alignment

without any evidence of impact to the front of the vehicle.

When checking for a misaligned radar module, look for a

bent mounting bracket or a module that is no longer properly

attached at its attaching points on the mounting bracket. A

misaligned radar module also can result in a reaction to target

vehicles or objects in adjacent lanes or no reaction to target

vehicles or objects in the vehicle’s path.

When aligning the Adaptive Cruise Control distance sensor

module, the vertical position of module should be 90 degrees

relative to the ground. Use a water bubble level to align the

distance sensor module vertically. The bubble level should have

an accuracy of +/-0.5 degrees (9 mm/m). Turn the alignment

screw until the bubble level has a value of 90 degrees. Before

performing a radar alignment, always check the three ball

sockets to ensure that the module is properly attached to the

ball studs on the mounting bracket.

Keep the Vehicle Clean

Radar blockage detection is a normal part of Adaptive Cruise

Control operation. If the radar is blocked, a “Front Radar

Blocked, Clean Front of Vehicle” message will display on the

DIC. A blockage warning message may be displayed if weather

conditions, such as rain or heavy snow, prevent the radar from

being able to properly discriminate targets. Rain, snow, ice,

mud or debris collected on the front or the back of the fascia in

the area of the radar or on the face of the radar module itself

also will cause the message to be displayed.

When cleaning the front of the vehicle to eliminate a blockage,

it may be necessary to clean both the outside surface of the

front fascia, the inside surface of the fascia and the distance

sensor module face.

Use the steering wheel switch to

change the gap setting.

The follow distance of the vehicle

ahead is expressed in time.

The Adaptive Cruise Control is located behind the front fascia.

12 2016 ISSUE 2

The following ILT courses are

currently being scheduled:

Course Number Course Name

S-AC07-02.01ILTAutomotive Air Conditioning Advanced Refrigerant System Diagnostics

S-AC07-03.01ILTHVAC Control System Operation and Diagnostics

S-AC07-04.01ILT

HVAC Diagnosis and Service – “You’re getting hotter, Nope now you’re cold – Get comfortable with HVAC Diagnostics”

S-BK05-01.01ILT Braking Systems

S-BK05-02.01ILT ABS Operation and Diagnosis

S-BK05-03.01ILTElectronic Brake and Chassis Controls: Is the vehicle really smarter than the driver?

S-DS11-02.01ILTService Programming – Flash or Pass: Don’t pass up potential customers!

S-DS11-03.01ILTDiagnostics GPS – “Is the path from Symptom to System to Repair, leading you in circles?”

S-DS11-13.01ILTVehicle Network Communications: When modules talk, who is really listening?

S-EL06-04.02ILT Network Communication Diagnosis

S-EL06-10.02ILT Electrical Power Management

S-EL06-11.02ILT Enhanced Automotive Circuit Diagnosis

S-EL06-13.01ILT Body Electrical Global Diagnostics

S-EL06-14.01ILTAdvanced Body Control System Electrical Diagnostics

S-EL06-17.01ILTElectrical Diagnostics: Chasing Lost Electrons

S-EM01-01.01ILTValvetrain Controls: Are they phasing you?

S-EP08-02.01ILTEngine Performance Computer Controls and Ignition System Diagnostics

S-EP08-04.01ILTEngine Performance Fault Monitoring and Emission System Diagnostics

S-EP08-05.01ILTEngine Performance Advanced Drivability Diagnostics

S-EP08-06.01ILTAfter Combustion Sensors: Is what is in the exhaust making your engine run rough?

S-EP08-07.01ILT Air Induction and Fuel Injection Systems

S-EP08-08.02ILTEvaporative Emissions Controls: Why is there always a code but never a leak we can find?

S-EP08-09.01ILTSpark Generation: Is a lack of spark sending you up in flames?

S-EP08-10.01ILT Direct Injection

S-EP08-81.02ILTDuramax Diesel Operation and Diagnosis

S-SS04-01.01ILT Vibration Correction Diagnostics

Current Instructor-Led Training (ILT) Courses

ST-PU-0002-16

Training Schedule

How to Take ACDelco TrainingGo to www.acdelcotraining.com and click the Training tab to log in to the

ACDelco Learning Management System (LMS).

To launch or enroll in courses in your

training path, open the home page to

view your Training Progress Status

Report, select Show Detail, and then

click the course number and title to

view details on a specific course and

to launch or enroll in the course.

To view Instructor-Led Training (ILT)

courses (ILTs are full-day and half-day

hands-on classroom courses), click

Take Training > Catalog > Catalog

Search and select Instructor-Led

Training under Delivery Type.

To view Virtual Classroom Training

(VCT) courses (VCTs are 1- to 2-hour

live online courses), click Take Training

> Catalog > Catalog Search and select

Virtual Classroom Training under

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To launch a Web-Based Training

(WBT) course (WBTs are 1- to 4-hour

self-guided online courses), click Take

Training > Catalog > Catalog Search

and select Service or Business Web-

Based Training under Delivery Type.

To launch a TechAssist (TAS) course

(TAS courses are 15- to 20-minute

online presentations on a specific

topic), click Take Training > Catalog >

Catalog Search and select TechAssist

under Delivery Type.

To launch a Simulation (SIM) (SIMs

require users to complete all repairs

for a condition), click Take Training >

Catalog > Catalog Search and select

Simulation under Delivery Type.

Training in Your AreaWould you like to know when training

classes are scheduled at your local

training center? You can find out

on the home page of the ACDelco

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the “Training in Your Area” section.

Up to three training centers can

be identified that will list their

available training schedules. Here’s

how to modify your training center

preferences:

1. Click Profile to edit your user

profile, which is where your

preferences are listed.

2. Scroll to the drop-down menus

to select up to three preferred

training centers.

3. Click the menus to review the list

of training centers.

4. Select primary, secondary and

third training centers locations.

5. Click Submit.