Active Grille Shutters Front-End Noise
Some 2021-2023 Escalade, Silverado, Tahoe, Suburban, Sierra and Yukon models may be producing a thump, clunk, pop or click noise at the front end of the vehicle. (Fig 1) The […]
Some 2021-2023 Escalade, Silverado, Tahoe, Suburban, Sierra and Yukon models may be producing a thump, clunk, pop or click noise at the front end of the vehicle. (Fig 1) The […]
The latest software update (V18.00) for the CH-47976 Active Fuel Injection Tester (AFIT) has recently been released. The software should be downloaded to ensure proper functionality of the AFIT. It […]
Some 2021-2023 Escalade, Silverado 1500, Tahoe, Suburban, Sierra 1500 and Yukon models equipped with the 5.3L V8 engine (RPO L82, L84) or 6.2L V8 engine (RPO L87) may have Reduced […]
After an Over-the-Air (OTA) software update on some 2021-2022 Corvette and 2022 Envision models, the radio may not turn off after the vehicle’s ignition has been turned off and the […]
The Settings menu on the infotainment screen may not be accessible on some 2021-2023 LCF 3500HD, 4500/4500HD, 5500/5500XD, 6500XD and 7500XD models equipped with the optional Alpine radio (RPO UIZ). […]
A new software update (DCAG1-35-01) and database update (DCDG1-11) are now available for the EL-52800 Diagnostic Charge Battery Station (DCBS). All DCBS units should be updated to ensure battery testing […]
Some 2021-2023 Tahoe, Suburban, Yukon and Escalade models equipped with the air leveling suspension (RPO F47) may have a low or leaning suspension or the air leveling function may be […]
A no start condition due to a dead battery may be found on some 2023 Blazers along with intermittent cruise control operation. Along with these conditions, the brake lights may […]
The latest diagnostic assistance from the professionals at the GM Technical Assistance Center is now available in the February GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]
The Active Fuel Injector Tester (AFIT) Vehicle Application Chart (Fig. 8), which can help identify the correct cable adapters for each GM model, has been updated with the latest model […]
Looking to get the latest technical information from Field Service Engineers (FSE)? And talk to FSEs about recent repairs you’ve experienced in your dealership? Check out the monthly FSE Lunch […]
The National Institute of Automotive Service Excellence (ASE) offers a remote testing option for ASE recertification tests. With the flexible, convenient remote option, service technicians can obtain ASE recertification without […]
The Tremec DCT TR9080 dual clutch transmission (RPO M1L, M1M) on 2020-2023 Corvettes features a transmission canister filter (Fig. 3) that should be replaced at the initial 7,500-mile (12,000-km) maintenance […]
The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM-certified repairs. This month the seminar reviews air spring repairs on full-size SUVs. (Fig. 7) […]