Disabling the Chevrolet Multi-Flex Tailgate and GMC MultiPro Tailgate Function

Disabling the Chevrolet Multi-Flex Tailgate and GMC MultiPro Tailgate Function

The Chevrolet Multi-Flex tailgate and GMC MultiPro tailgate (RPO QK2) available on the 2022 Silverado 1500, Silverado 2500/3500, Sierra 1500 and Sierra 2500/3500 offers flexibility and functionality designed to improve […]

January 19, 2022
Shift to Park Message on Camaro Models

Shift to Park Message on Camaro Models

Some 2016-2020 Camaro models (Fig. 7) equipped with the 8-speed automatic transmission (RPO M5T, M5U) or 10-speed automatic transmission (RPO MF6, MGL, MI1, MI2, MI4) may have a Shift to […]

January 19, 2022
Corvette 1st Service Visit Timing Update

Corvette 1st Service Visit Timing Update

The Chevrolet Complete Care program has been updated recently to include an extension of the Included Maintenance timing requirements for the owners of 2020-2022 Corvette models (C8) (Fig. 11) to […]

January 19, 2022
Diagnosing Engine Sounds

Diagnosing Engine Sounds

If an engine ticking or knocking sound is noticed on some 2019-2022 Silverado, Sierra; 2021-2022 Tahoe, Suburban, Yukon and Escalade models equipped with the 5.3L V8 engine (RPO L84) (Fig. […]

January 19, 2022
New Torque Specification and Installation Procedure for ACDelco Spin-On Oil Filters

New Torque Specification and Installation Procedure for ACDelco Spin-On Oil Filters

A new torque specification has been released for ACDelco spin-on oil filters installed on 2000-2022 GM models equipped with a gasoline engine. The new specification is in response to possible […]

January 19, 2022
Wrinkle in Hood Stripe or Hood Wrap

Wrinkle in Hood Stripe or Hood Wrap

A wrinkle or bubble may be seen in the stripe decal or hood wrap around the outer edges of the hood air scoop on some 2019-2022 Camaro models. (Fig. 17) […]

January 19, 2022
GM Service Know-How Emerging Issues

GM Service Know-How Emerging Issues

The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM certified repairs. The latest service topics from GM Brand Quality and Engineering covered in […]

January 19, 2022
New STC Course Catalog for 2022 Now Available

New STC Course Catalog for 2022 Now Available

The new 2022 GM Service Technical College (STC) Course Catalog (U.S.) (Fig. 1) is now available on the Service Technician Training, Recruiting, Retention, and Recognition App on GlobalConnect and on […]

December 22, 2021
Air Conditioning Blows Warm Air

Air Conditioning Blows Warm Air

The air conditioning may blow warm air on some 2021-2022 Tahoe, Suburban, Yukon and Escalade models. The Check Engine MIL may be illuminated and DTCs B1AA3 (Run/Crank Relay Coil Control), […]

December 22, 2021
GM Service Know-How Emerging Issues

GM Service Know-How Emerging Issues

The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM certified repairs. The latest service topics from GM Brand Quality and Engineering covered in […]

December 22, 2021
Global Wiring Harness Repair Strategy and Parts Information Update

Global Wiring Harness Repair Strategy and Parts Information Update

GM’s global repair strategy for large wiring harnesses (body, engine, instrument panel, forward lamp, headliner/roof harness, and truck chassis) is to repair/replace the components (cables, terminals, connectors, etc.) instead of […]

December 21, 2021
Low Coolant or Air Trapped in Engine Cooling System

Low Coolant or Air Trapped in Engine Cooling System

An illuminated Check Engine MIL and DTC P3075 (Engine Coolant Flow Too Low) may be set in the Engine Control Module (ECM) on some 2019-2022 XT4, Blazer, Silverado 1500, Sierra […]

December 21, 2021
Steering Wheel Wiring Harness Condition

Steering Wheel Wiring Harness Condition

Some 2019-2020 Encore and Trax models may have several features operating improperly, including an unwanted windshield wiper swipe upon starting the vehicle, the front wipers may not park and the […]

December 21, 2021
Google Built-In Compatibility Features and Operation

Google Built-In Compatibility Features and Operation

The new Infotainment 3 Premium system (RPO IOK) available on the 2022 Tahoe, Suburban and Yukon features Google built-in compatibility. (Fig. 14) Google built-in offers access to some popular Google […]

December 21, 2021
Exhaust Brake Operation

Exhaust Brake Operation

The exhaust brake may not seem to work properly on some 2020 Silverado and Sierra models equipped with the 6.6L Duramax diesel engine (RPO L5P). No DTCs will be set. […]

December 21, 2021
Coolant Leak Under the Vehicle

Coolant Leak Under the Vehicle

Some 2020-2022 Silverado 2500/3500 and Sierra 2500/3500 trucks equipped with the 6.6L Duramax diesel engine (RPO L5P) may have a coolant leak under the vehicle. The Check Engine MIL may […]

December 21, 2021
Mark of Excellence Program Enrollment Extended for 2022

Mark of Excellence Program Enrollment Extended for 2022

The Mark of Excellence program (U.S.) recognizes the achievements, professionalism, and commitment of many members of the GM dealership community. For 2022, service technicians enrolled in the program can earn […]

December 9, 2021