TechLink – Page 13

Low-Beam Headlamp Diagnosis

The low-beam headlamp may be inoperative on some 2019-2024 Silverado 4500HD/5500HD/6500HD models. (Fig. 6) Fig. 6 If the low-beam headlamp is not working properly, check the electrical connector […]

July 31, 2024 —

Correct Tire Size Affects Driver Assistance Systems

The Adaptive Cruise Control or regular Cruise Control as well as the Lane Keep Assist system may turn on/off while driving or may be inoperative on some 2019-2023 Encore GX […]

July 31, 2024 —

Loss of Communication with ECM

Some 2019-2022 Silverado 1500, Sierra 1500; and 2020-2022 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD models may have an illuminated Check Engine MIL at startup along with DTC U0100 (Lost Communication with […]

July 31, 2024 —

July 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 July GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]

July 31, 2024 —

Resolving Service Programming System Errors

There are several Service Programming System (SPS) errors that can be resolved by following some basic steps, and do not require replacing the control module, on 2000-2025 GM models. No […]

July 23, 2024 —

Corvette Transmission External Canister Filter and Maintenance Update, Labor Code Added

The Tremec DCT TR9080 dual clutch transmission (RPO M1L, M1M) on 2020-2024 Corvettes features an external canister filter that should be replaced at the initial 7,500-mile (12,000-km) maintenance service. After […]

July 23, 2024 —

FSE Technician Recognition Awards – 2nd Quarter 2024

The GM Field Service Engineer (FSE) Technician Recognition Awards (U.S.) celebrate the skill and dedication of dealership technicians who have recently worked with FSEs on challenging repairs. Technicians at GM […]

July 23, 2024 —

Noise from the Transmission Area

There may be a noise from the bell housing area of the DCT TR9080 transmission (RPO M1L, M1M) on some 2020-2024 Corvettes along with a number of DTCs set in […]

July 23, 2024 —

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 covers a tear down and inspection of the VT40 […]

July 23, 2024 —

GM Virtual Tool Crib App Tracks Dealerships’ Special Tools Inventory

The GM Tools and Equipment program recently introduced their latest tool organization program – the new GM Virtual Tool Crib (VTC). The Virtual Tool Crib application is designed to help […]

June 26, 2024 —

Insufficient Dual Tank Fuel Transfer

Some 2024 Silverado 3500 HD and Sierra 3500 HD models equipped with the 6.6L Duramax Diesel engine (RPO L5P) may have a fuel gauge that drops to empty and an […]

June 26, 2024 —

Properly Testing Bladed Thermal Fuses

When testing bladed thermal fuses for an open or incomplete circuit, it’s critical to follow the proper procedures as outlined in the appropriate Service Information to reach a correct diagnosis […]

June 26, 2024 —

June 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 June GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]

June 26, 2024 —

Preventing Rear Glass Damage During Folding Top Service

During repairs of the folding top on 2016-2024 Camaro convertible models, there are several key tips to follow to ensure proper operation of the folding top and to help prevent […]

June 26, 2024 —

Side Detection System Unavailable

A Side Detection System Temporarily Unavailable message may be displayed on the instrument cluster of some 2024 Silverado 2500 HD/3500 HD and Sierra 2500HD/3500 HD trucks. There also may be […]

June 26, 2024 —

Transmission Not Shifting, Defaults to 5th Gear

The 10-speed automatic transmission (RPO MGM, MGU, MHO, MHS, MHT, MHU, MHX, MKM, MQA, MQB, MQC, MQ2, MI2) on some 2023 CT4, CT5, Silverado, Sierra, Escalade; and 2023-2024 Silverado 2500 […]

June 26, 2024 —