TechLink

New TechPRO Diagnostic App for Non-GM Vehicles

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 […]

November 27, 2019 —

Techline Connect Rollout Complete – Install the App Today

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 […]

November 27, 2019 —

Your Thoughts? Tell Us in the TechLink Survey

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 […]

November 27, 2019 —

Unable to Deactivate Brake Boost System in GDS 2

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 […]

November 27, 2019 —

Parking Brake Cable Squeak Sound

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 […]

November 27, 2019 —

Lane Keep Assist Icon Missing from Instrument Cluster

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 […]

November 27, 2019 —

Unwanted Power Door Unlock Command

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 […]

November 27, 2019 —

Check the Service Information Every Time, Every Repair

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 […]

November 27, 2019 —

All-New Cadillac CT5 Debuts with Style, Performance and Technology

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 […]

November 20, 2019 —

End of Windows 7 Support Fast Approaching

Techline computers in GM dealerships running a Windows 7 Professional operating system (OS) must be replaced by December 31, 2019 in order to receive assistance from the Techline Customer Support […]

November 20, 2019 —

Location Masking on 2019-2020 GM Vehicles

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 […]

November 20, 2019 —

Engine Air Leak from PCV Tube

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 soun390 from […]

November 20, 2019 —

Transfer Case NVH Issue During Coast Down

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 […]

November 20, 2019 —

UPDATE: Rattle Sound near Front of Engine

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 […]

November 20, 2019 —

Sunroof/Sunshade Motor Initialization

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. […]

November 20, 2019 —

GM Service Know-How

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 […]

November 20, 2019 —