The Chevrolet Multi-Flex Tailgate and GMC MultiPro Tailgate (RPO QK2) available on the 2022-2024 Silverado 1500, Silverado 2500/3500, Sierra 1500 and Sierra 2500/3500 offers enhanced access to the cargo box […]
The front-view camera washer nozzle may be leaking washer fluid on some 2022-2023 Silverado 1500 and Sierra 1500 models. (Fig. 7) Fig. 7 Service Information or the Electronic […]
The latest diagnostic assistance from the professionals at the GM Technical Assistance Center is now available in the September GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]
Several changes have been made to the 9-speed transmission (RPO M3W, M3F, M3H, M3G, M3T, M3V, M3U) automatic transmission fluid Oil Level Control system (OLC) for 2023-2024 Enclave, Encore GX, […]
The Super Cruise driver assistance feature (RPO UKL) on 2022 Tahoe, Suburban, Yukon; and 2022-2023 Escalade models uses front short-range radar to allow Super Cruise to perform lane-change maneuvers. When […]
When USB programming the radio (RPO IVD) on some 2023 Colorado, Canyon; 2023-2024 LYRIQ; and 2024 XT4, Blazer EV and Silverado EV models (Fig. 8), a message may display that […]
The September Techline Connect (TLC) software release includes several updates to enhance the performance of the application. The update should be downloaded automatically when logging in to Techline Connect. (Fig. […]
The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM-certified repairs. This month the seminar takes an up-close look at the all-new 2024 Blazer […]
During any service repair on 2024 and earlier GM models that involves cylinder head removal, installation or replacement, it’s critical that all dirt, debris and coolant be cleaned from the […]
Some fleet drivers of BrightDrop EV vans may notice proper seat belt operation is affected by the cleanliness of the belt and retractor guide. Due to the high amount of […]
Software update V19.00 has been released for the CH-47976 Active Fuel Injection Tester (AFIT). It includes testing data for all vehicle programs launching through December 2023. The software should be […]
The Active Fuel Injector Tester (AFIT) Vehicle Application Chart, which can help identify the correct cable adapters for each GM model, has been updated with the latest model year information. […]
The latest diagnostic assistance from the professionals at the GM Technical Assistance Center is now available in the August GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]
The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM-certified repairs. This month the seminar takes a look at the 2023 Corvette with the […]
Harsh Garage Shift into Drive or Reverse on Envista and Trax Models
Safety Arc-Rated Personal Protection Equipment for Electric Vehicles
Engine Oil Capacities Chart for the 2026 Model Year
2026 Corvette ZR1X TAC Action Center
Blank Screen Display Diagnostic Tips
Make a Reservation to Meet with Your FSEs in 2026
GM Introduces Digital Key, Offering Convenience and Easy Access
Key Cards Put Vehicle Access in Your Wallet
New 2026 Corvette ZR1X Delivers Twin-Turbo AWD Hypercar Performance
MDI 2 Manager Update Adds Support for New Wireless Dongles
Latest CX Connect Update Delivers Streamlined Operation and Enhanced Search Functions
GM Service Know-How Emerging Issues
Engine Control Module Diagnosis and ECM Part Restriction
Front Brake Caliper Sound and Uneven Pad Wear
3rd-Row Seat Switch Diagnosis
Check Ground Terminals for Transmission Fluid Temperature Sensor Circuit Condition
December Service Newsletter from the Experts at GM TAC
FSE Technician Recognition Awards – 4th Quarter 2025DCA-8000
Troubleshooting
Guide
TAC Newsletter February 2026
TAC Newsletter January 2026
Techline Connect Tips November 2024
CX Connect Case Creation Help + Tips and Tricks
Safety Arc-Rated (AR) Personal Protection Equipment (PPE) is recommended to be used by technicians when servicing some high-voltage battery packs under certain scenarios on GM electric vehicles. The PPE that […]
GM diagnostic strategy does not support the practice of swapping control modules during the course of diagnosis or to expedite a repair. Features in today’s vehicles are increasingly software configurable. […]
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.
Designed by WPZOOM
