Archive for October, 2016

New 2017 Colorado and Canyon Action Center Now Available

New 2017 Colorado and Canyon Action Center Now Available

A new GM Technical Assistance Center (TAC) Action Center has been established for the 2017 Colorado and Canyon (Fig. 1) equipped with the new high feature 3.6L V6 engine (RPO […]

October 9, 2016
Battery Learn Procedure Update for Stop/Start System

Battery Learn Procedure Update for Stop/Start System

A new Power on Reset feature has been added to 2017 models equipped with Engine Stop/Start. As a result, the battery learn procedure is no longer required after a battery […]

October 9, 2016
Electrical Conditions Resulting from Damaged Wiring Harness

Electrical Conditions Resulting from Damaged Wiring Harness

A number of electrical conditions, including the instrument cluster gauges drop out, the radio and HVAC displays are blank, no crank/no start, and several Driver Information Center messages displayed, may […]

October 9, 2016
Power Liftgate Latch Connector

Power Liftgate Latch Connector

The power liftgate on some 2017 Acadia and XT5 models may not open. When diagnosing the liftgate will not open condition, disconnect and reconnect the latch electrical connector and retest […]

October 9, 2016
Inoperative Sunroof or Sunshade

Inoperative Sunroof or Sunshade

On some 2016 CT6, Malibu (VIN Z); 2017 XT5 and LaCrosse models, the sunroof glass and/or sunshade may be inoperative.   Several DTCs may be set: B3664 (Sunroof Position Select […]

October 9, 2016
Unseated Exhaust Pipe Connector Leak

Unseated Exhaust Pipe Connector Leak

An exhaust leak or noisy exhaust, sometimes described as a rattle or rumble, most noticeable on a cold start may be found on some 2014-2017 Silverado 1500 and 2015-2017 Escalade, […]

October 9, 2016
Harsh Shift and Rough Idle Conditions

Harsh Shift and Rough Idle Conditions

A harsh shift and rough idle may be felt on some 2014-2017 Corvette, Silverado, Sierra; 2015-2017 Escalade, Suburban, Tahoe, Yukon; 2016-2017 CTS-V, and Camaro models.   The harsh shift may […]

October 9, 2016
Engineering Information Bulletins and Part Restrictions

Engineering Information Bulletins and Part Restrictions

October 9, 2016
Service Know-How

Service Know-How

10216.12V – Emerging Issues December 8, 2016   The latest service topics from Brand Quality and Engineering are reviewed, including an overview of the new 2017 Bolt EV and the […]

October 9, 2016
Malibu Hybrid No Crank Condition and DTC P0AFA

Malibu Hybrid No Crank Condition and DTC P0AFA

If the 1.8L engine (RPO LKN) on a 2016-2017 Malibu Hybrid model (Fig. 1) does not crank after several attempts and DTC P0AFA (Hybrid/EV Battery System Voltage Low Voltage) is […]

October 3, 2016
The Results are In — Service Information Offers New Search Functions

The Results are In — Service Information Offers New Search Functions

Enter a few keywords in the Search box of the Service Information, click the Search button, and the results may surprise you. New search functions now offer several ways for […]

October 3, 2016
Identifying Non-GM Calibrations in Duramax 2.8L Diesel Engines

Identifying Non-GM Calibrations in Duramax 2.8L Diesel Engines

2016-2017 Colorado and Canyon models and 2017 Express and Savana models are available with the Duramax 2.8L turbocharged diesel engine (RPO LWN). (Fig. 9) Various performance conditions, such as poor […]

October 3, 2016
GM TAC Process Addresses Vehicle Cybersecurity

GM TAC Process Addresses Vehicle Cybersecurity

If a customer comes into a GM dealership with concerns about a cyberattack or hack on their vehicle, the GM Technical Assistance Center (TAC) has a process in place to […]

October 3, 2016
Fuel Tank Pop Noise

Fuel Tank Pop Noise

Some 2010-2017 Equinox and Terrain models may have a popping noise coming from the rear of the vehicle shortly after a cold start or EVAP purge event. The sound may […]

October 3, 2016
3rd Gear Condition on Manual Transmission

3rd Gear Condition on Manual Transmission

Some 2017 Camaro and ATS-V models equipped with a 6-speed transmission (RPO MM6, MG9) and 2017 Corvette models equipped with a 7-speed transmission (RPO MEP, MEK) may hop out of […]

October 3, 2016
Crossed Fuel Injector Harness

Crossed Fuel Injector Harness

A rough idle or misfire may be noticed on some 2014-2017 Encore, 2011-2015 Cruze, 2016 Cruze Limited, 2012-2017 Sonic and 2013-2017 Trax models equipped with the 1.4L 4-cylinder engine (RPO […]

October 3, 2016