TechLink – Page 8

Power Doors OTA Update Released for 2025 Escalade

2025 Escalade, Escalade ESV and Escalade V-Series models built early in the model year offered a power-assist exterior door system (RPO APD with R6W) that has power-assisted door opening and […]

May 13, 2025 —

QR Code Scanning Helps Avoid Input Mistakes When Programming Modules

When replacing a valve body or transmission on a GM vehicle, it is essential to gather Mechanical Characterization & Virtual Matching (MCVM) data from the cloud. Due to manufacturing variations, […]

May 13, 2025 —

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 previews the 2025 Corvette ZR1. (Fig. 12) Fig. […]

May 13, 2025 —

New TAC Response Requested Process

A new GM Technical Assistance Center (TAC) process has been implemented to ensure the customer is being considered when TAC is working in partnership with dealership technicians to repair customers’ […]

May 9, 2025 —

Keep Your Cool — Air Conditioning Refrigerant Leak Diagnostic Tips

All current GM vehicles are manufactured with fluorescent dye installed in the air conditioning refrigerant system. The dye mixes and flows with the A/C compressor oil to help in locating […]

April 30, 2025 —

Water Leak at the A-Pillar Body Plug

There may be several inoperative electrical features on some 2019-2025 Blazers. (Fig. 4) These conditions may include inoperative door chimes and door lamps, inoperative power mirrors or a distorted driver-side […]

April 30, 2025 —

Unlatching the Front Compartment Hood with a Weak 12V Battery

The front compartment hood on some 2024-2025 Corvette models may not fully unlatch when one of the hood release buttons is pressed if the 12V battery is weak, resulting in […]

April 30, 2025 —

Differences in Approach Lighting on Mid-Size SUVs

The approach lighting on the 2024-2025 Traverse and Acadia has several differences compared to the lighting elements on the 2025 Enclave. It’s important to understand these differences when diagnosing any […]

April 30, 2025 —

April Service Newsletter from the Experts at GM TAC

The latest diagnostic assistance from the professionals at the GM Technical Assistance Center is now available in the April GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]

April 30, 2025 —

Outside Rearview Mirror Glass Removal

There are several GM Accessories available that update the design and functionality of the outside rearview mirrors on 2022-2025 HUMMER EV models. (Fig. 1) GM Accessories range from different housing […]

April 10, 2025 —

Executive Second-Row Seat Operation

The available Executive Second-Row Seats (RPO ABV, AL4) in the 2025 ESCALADE IQ (Fig. 5) feature power operation for second-row passengers, which makes it easy to adjust the seats for […]

April 10, 2025 —

Super Cruise Disengages or is Unavailable

The Super Cruise driver assistance technology may disengage or be unavailable on some 2021-2025 Escalade; 2023-2025 LYRIQ; 2024-2025 Traverse, Acadia; 2025 Enclave, CT5, ESCALADE IQ, OPTIQ, Blazer EV, Equinox EV, […]

April 10, 2025 —

2025 Cadillac VISTIQ TAC Action Center

The GM Technical Assistance Center (TAC) has established a TAC Action Center for U.S. dealerships to provide product feedback on the all-new 2026 Cadillac VISTIQ. (Fig. 14) Fig. 14 […]

April 10, 2025 —

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 look at trailer lighting and braking operation. […]

April 10, 2025 —