The GM Global Electronic Parts Catalog (EPC) was recently updated with a number of enhanced features that add to the search functions of the EPC. Many of the new features […]
When operated in extremely dusty environments, there may be some dust intrusion into the evaporative emission (EVAP) system that can plug the canister and canister vent solenoid on some 2019-2023 […]
The latest diagnostic assistance from the professionals at the GM Technical Assistance Center is now available in the June GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]
When performing the IMMO Immobilizer Learn procedure to program or add key fob transmitters (Fig. 14) on some 2021-2023 Tahoe, Suburban, Yukon, Escalade; 2022-2023 Silverado, Sierra; and 2024 Silverado 2500HD/3500HD […]
Some 2021-2023 Tahoe, Suburban, Yukon and Escalade models may have a pop, clunk, rattle or click sound from under the vehicle while turning. In most cases, the sound can be […]
With a wide range of design and technology choices in five different trim levels: LS, 1RS, LT, 2RS and ACTIV (Fig. 1), the 2024 Chevrolet Trax has gotten bigger and […]
The GM Technical Assistance Center, or TAC, (U.S.) has established an Action Center for the all-new 2024 Chevrolet Trax. (Fig. 10) Fig. 10 TAC Action Centers are designed […]
The GM Field Service Engineer (FSE) Technician Recognition Awards (U.S.) celebrate the skill and dedication of dealership technicians who have recently worked with FSE’s on challenging repairs. Technicians at GM […]
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 manual park release for […]
One of the most common sources of diesel fuel system contamination is automotive fluids, which often include gasoline and Diesel Exhaust Fluid (DEF) that may have been mistakenly added to […]
While driving in extremely cold weather conditions, poor engine performance may be noticed on some 2013-2021 Encore and Trax models equipped with the 1.4L engine (RPO LUV). (Fig. 10) The […]
Some 2020-2024 Silverado 2500/3500 and Sierra 2500/3500 models equipped with the 10L1000 10-speed automatic transmission (RPO MGM, MGU) and four-wheel drive transfer case (RPO NQF, NQH) may have a fluid […]
A single bump feeling may be felt when coming to a stop on some 2017-2022 Encore and Trax models equipped with the 6T40 6-speed automatic transmission (RPO MNH, MNK) and […]
Some 2011-2016 Cruze; 2012-2020 Sonic; and 2013-2020 Encore and Trax models equipped with the 1.4L engine (RPO LUV) may experience a loss of power or several other engine performance conditions […]
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.
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