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 […]
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) […]
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 […]
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 […]
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), […]
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 […]
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 […]
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 […]
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 […]
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 […]
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. […]
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 […]
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 […]
The optional SiriusXM with 360L service on some 2021 and later GM models equipped with an Infotainment 3.X system (RPO IOS, IOT, IOU, IOV) features over 200 internet channels (IP […]
November Service Newsletter from the Experts at GM TAC
Questions About Labor Times?
Stay Updated — IOK Radio Software and Connection Conditions
Key Fob Synchronization
CX Connect Features Updated in Latest Release
New SAVI Manager Release Updates USB Driver
Do Not Swap Control Modules
GM Service Know-How Emerging IssuesDCA-8000
Troubleshooting
Guide
TAC Newsletter December 2025
TAC Newsletter November 2025
Techline Connect Tips November 2024
CX Connect Case Creation Help + Tips and Tricks
All buttons on one key fob (Remote Keyless Entry transmitter) may be inoperative on some 2023-2026 Escalade, LYRIQ, Corvette, Silverado 1500, Silverado 2500HD/3500HD, Tahoe, Suburban, Sierra 1500, Sierra 2500HD/3500HD, Yukon; […]
To avoid wait times for technical support in the dealership, prior to contacting the GM Technical Assistance Center (TAC) and Techline Customer Support Center (TCSC) as well as and other […]
Take a detailed look at a wide range of innovative features and advanced systems found on GM vehicles to gain a better understanding of proper operation. Each short video reviews how a feature works, highlights operating tips and shows ways to customize settings, if applicable.
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