Diagnosing Road Force
The design of today’s modern vehicles — and the proper operation of many new components and systems — has led to the critical importance of properly balanced and low Road […]
The design of today’s modern vehicles — and the proper operation of many new components and systems — has led to the critical importance of properly balanced and low Road […]
The latest Original Equipment (OE) Battery Ratings chart for the 2024 model year is now available under the Reference Charts menu for use when testing OE batteries. (Fig. 1) […]
Absorbent Glass Mat (AGM) 12V batteries are used in GM Electric Vehicles (EVs), including the 2017-2023 Bolt EV; 2022-2023 Bolt EUV; 2023-2024 LYRIQ (Fig. 4) and HUMMER EV, due to […]
The Chevrolet Multi-Flex Tailgate and GMC MultiPro Tailgate (RPO QK2) available on the 2022-2024 Silverado 1500, Silverado 2500/3500, Sierra 1500 and Sierra 2500/3500 offers enhanced access to the cargo box […]
The front-view camera washer nozzle may be leaking washer fluid on some 2022-2023 Silverado 1500 and Sierra 1500 models. (Fig. 7) Fig. 7 Service Information or the Electronic […]
The latest diagnostic assistance from the professionals at the GM Technical Assistance Center is now available in the September GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]
Several changes have been made to the 9-speed transmission (RPO M3W, M3F, M3H, M3G, M3T, M3V, M3U) automatic transmission fluid Oil Level Control system (OLC) for 2023-2024 Enclave, Encore GX, […]
The Super Cruise driver assistance feature (RPO UKL) on 2022 Tahoe, Suburban, Yukon; and 2022-2023 Escalade models uses front short-range radar to allow Super Cruise to perform lane-change maneuvers. When […]
When USB programming the radio (RPO IVD) on some 2023 Colorado, Canyon; 2023-2024 LYRIQ; and 2024 XT4, Blazer EV and Silverado EV models (Fig. 8), a message may display that […]
The September Techline Connect (TLC) software release includes several updates to enhance the performance of the application. The update should be downloaded automatically when logging in to Techline Connect. (Fig. […]
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 an up-close look at the all-new 2024 Blazer […]
During any service repair on 2024 and earlier GM models that involves cylinder head removal, installation or replacement, it’s critical that all dirt, debris and coolant be cleaned from the […]
Some fleet drivers of BrightDrop EV vans may notice proper seat belt operation is affected by the cleanliness of the belt and retractor guide. Due to the high amount of […]
Software update V19.00 has been released for the CH-47976 Active Fuel Injection Tester (AFIT). It includes testing data for all vehicle programs launching through December 2023. The software should be […]
The Active Fuel Injector Tester (AFIT) Vehicle Application Chart, which can help identify the correct cable adapters for each GM model, has been updated with the latest model year information. […]
The latest diagnostic assistance from the professionals at the GM Technical Assistance Center is now available in the August GM Technical Assistance Center (TAC) Newsletter. It covers a number of […]
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 2023 Corvette with the […]
As production of the sixth generation Camaro comes to an end, the legacy of the muscle car is being celebrated with a special Collector’s Edition (RPO Z4B) on the LT/RS, […]
Transport Mode, or Logistics Mode, is used to increase 12V battery stand time during transit as well as long periods of stand time in dealership inventory for traditional internal combustion […]
The LED “on” indicators on the upfitter auxiliary switches (RPO 9L7), located on the instrument panel, may not illuminate properly on some 2023 Silverado 1500, Sierra 1500; 2024 Silverado 2500/3500 […]