TechLink

The 2027 Chevrolet Bolt Makes Its Comeback

The return of the Chevrolet Bolt brings faster charging capability, longer range, a redesigned interior, enhanced technology, including Super Cruise, and a sporty RS trim along with the standard LT […]

February 20, 2026 —

2027 Chevrolet Bolt TAC Action Center

A GM Technical Assistance Center (TAC) Action Center has been established for U.S. dealerships to help gather and report product feedback on the new 2027 Chevrolet Bolt. (Fig. 11) Fig. […]

February 20, 2026 —

NACS and CCS1 Charging Adapter Options

GM-approved charging adapters allow electric vehicles, including 2017-2023 Bolt; 2022-2026 HUMMER EVs; 2023-2026 LYRIQ, BrightDrop; 2024-2026 Blazer EV, Equinox EV, Silverado EV, Sierra EV; 2025-2026 OPTIQ, CELESTIQ, ESCALADE IQ/IQL; and […]

February 20, 2026 —

February CX Connect Release Provides Multiple App Updates

The latest CX Connect release (February 2026) includes multiple enhancements and updates that are designed to increase the functionality of the app and make it easier to use. (Fig. 20) […]

February 20, 2026 —

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. This month the seminar takes a closer look at DEF contamination in diesel […]

February 20, 2026 —

TCSC Top Issues This Week

The Techline Customer Support Center (TCSC) is available to help dealerships with diagnostic and programming issues related to Techline Connect (TLC) and the Service Programming System (SPS). TCSC has now […]

February 19, 2026 —

Safety Arc-Rated Personal Protection Equipment for Electric Vehicles

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 […]

January 29, 2026 —

Engine Oil Capacities Chart for the 2026 Model Year

The TechLink 2026 Engine Oil Capacities chart is now available under the Reference Charts menu. The chart includes engine, RPO, specifications (liters and quarts), oil viscosity and engine oil filter […]

January 29, 2026 —

2026 Corvette ZR1X TAC Action Center

To help gather product feedback on the new 2026 Corvette ZR1X (Fig. 4), an Action Center has been established by the GM Technical Assistance Center (TAC) for U.S. dealerships […]

January 29, 2026 —

Blank Screen Display Diagnostic Tips

A blank or black screen display affecting the instrument cluster, infotainment screen, or both, on some 2022-2026 Silverado, Tahoe, Suburban, HUMMER EV, Sierra, Yukon; 2024-2025 XT4; 2024-2026 Encore GX, Envision, […]

January 29, 2026 —

Harsh Garage Shift into Drive or Reverse

A harsh garage shift into Drive or Reverse may be noticed on some 2025-2026 Envista and Trax models equipped with the 6T40 automatic transmission (RPO MNK, MNH). The shift issue […]

January 29, 2026 —

Make a Reservation to Meet with Your FSEs in 2026

The Lunch with Your Field Service Engineers monthly meetings (U.S. only) held online via Microsoft Teams offer GM dealership technicians, shop foremen and service managers the latest technical information and […]

January 21, 2026 —

GM Introduces Digital Key, Offering Convenience and Easy Access

Digital key is a new convenience feature that allows a customer to use a compatible smart device, such as a smartphone or smartwatch, in place of a conventional key or […]

January 16, 2026 —

Key Cards Put Vehicle Access in Your Wallet

Key cards are wallet-sized cards that can be used to unlock, lock and start a number of GM vehicles when the key fob is not available. Key cards may be […]

January 16, 2026 —