Archive for November, 2019

The used car departments and collision repair centers of GM dealerships (U.S.) now have a new way to diagnose non-GM vehicles — the MAHLE TechPRO Professional Aftermarket Diagnostics. With no […]

The rollout for Techline Connect (TLC), the replacement application for TIS2Web, is now complete for all U.S. dealerships. The rollout for Canadian dealerships will begin in early December. Technicians that […]

From the latest diagnostic and technical repair information to new model features and special tools, our goal at TechLink is to bring you the latest news on GM service topics […]

After the Brake Master Cylinder Assembly has been replaced on 2019-2020 XT4 models, a GDS 2 error message may display when trying to deactivate the brake boost system when performing […]

Some 2015-2020 Tahoe, Suburban, Yukon and Escalade models may have a squeak sound heard from under the vehicle while driving at slow speeds. The sound may be caused by the […]

The Lane Keep Assist icon may not appear on the instrument cluster on some 2019-2020 Silverado 1500 and Sierra 1500 models. In addition, the Lane Keep Assist switch LED indicator […]

The power door locks may unlock three times in succession immediately after auto locking, usually at start-up or while driving, on some 2016-2020 Camaro models. The unwanted unlocking may occur […]

The GM Service Information (SI) is updated daily in order to provide technicians with the latest, most accurate information available to diagnose and repair GM vehicles. Since the Service Information […]

As the newest luxury sedan in the Cadillac lineup, the all-new 2020 CT5 has been designed with a number of performance and technology features, and wrapped in a stylish fastback […]

Location masking on some 2019-2020 GM models equipped with Infotainment 3 Systems (RPO IOR, IOS, IOU, IOT) allows owners to disable the location services feature in their vehicle. By turning […]

Some 2019-2020 Silverado 1500 and Sierra 1500 models equipped with the 5.3L V8 engine (RPO L84) may have a rough idle, lean running concern, or an air leak from the […]

A transfer case noise, vibration and harness (NVH) concern may be found on some 2020 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD models equipped transfer cases RPO NQF (Electric Shift Cont, Two […]

The 2019 XT4 may have a rattle sound heard near the front of the 2.0L 4-cylinder engine (RPO LSY) due to a stuck or collapsed timing chain tensioner and, as […]

An inoperative sunroof and/or sunshade (RPO C3U) may be found on some 2018-2020 Equinox and Terrain models. The inoperative condition may be the result of the sunroof programming losing initialization. […]

The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM certified repairs. The latest service topics from GM Brand Quality and Engineering covered in […]