GM has recently released new Dealer Infrastructure & Security Guidelines (DISG) for 2022. The new guidelines outline the dealership technology needed to ensure reliable data communications for all dealers, including […]
Some 2021 Silverado 1500 and Sierra 1500 trucks equipped with the 5.3L V8 (RPO L84) and 10L80 10-speed automatic transmission (RPO MQB), excluding models with RPO YK9, may have a […]
After installing a number of select GM Genuine Accessories (Fig. 16), a calibration update from the Techline Customer Support Center (TCSC) is required in order to complete the installation properly. […]
The Chevrolet Performance, GMC and Cadillac Cold Air Intake System (RPO 5W7, RVK) available on 2021 Camaro, Silverado, Tahoe, Suburban, Sierra, Yukon and Escalade models equipped with the 5.3L V8 […]
Programming calibrations and software requires the transfer of large files to the vehicle from the Service Programming System (SPS). When transferring a large file (greater than 1 GB) from the […]
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 […]
When diagnosing an infotainment system, it’s important to remember that software and calibrations are not the same thing and are not interchangeable terms. Calibrations instruct the radio what to do […]
Install Techline Connect Today Starting July 19th, 2021, a phased retirement of TIS2Web will begin in the U.S. and Canada, and continue in phases until August 20, 2021. Once retired, […]
GM’s new Vehicle Intelligence Platform, or VIP, currently used on 2020-2022 Corvette, CT4, CT5 and 2021-2022 Tahoe, Suburban, Yukon, Escalade and Envision models, offers increased capacity and the ability to […]
The software on many 2018-2021 GM models equipped with an Infotainment 3 System (RPOs IOR, IOS, IOT, IOU, IOV) (Fig. 1) can be updated over the air to the vehicle […]
GM has recently released the latest Dealer Infrastructure Guidelines (DIG) for 2021. The guidelines outline the dealership technology needed to ensure reliable data communications for all dealers, including recommended personal […]
When 2018-2021 GM models equipped with an Infotainment 3 System (RPO IOR, IOS, IOT, IOU, IOV) (Fig. 26) come into the dealership with various system concerns – the radio display […]
When changing tire and wheel sizes on 2003-2021 GM models, a new tire calibration will be needed. GM offers tire calibrations for tires that have been sized, tested and designed […]
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 […]
When testing or charging a 12V battery in a vehicle that is in for service or is part of the dealership’s inventory, the EL-50313 Midtronics GR8 Battery Tester/Charger or EL-52800 […]
The trailer running lamps may illuminate momentarily and then turn off or may flash when connected to 2019 Silverado 1500 and Sierra 1500 models. When operating a trailer running lamp […]
The latest software update for the EL-52545 TPMS/RF Tool (Fig. 18) is now available. The update adds the following features and enhancements: Trailer Tire Pressure Monitoring System (TPMS) learn and […]
A customer may request the pickup box and rear bumper be removed on 2019-2020 Silverado 1500 and Sierra 1500 models to install an aftermarket bed or body. (Fig. 18) If […]
The rear camera guidelines may be incorrect or misaligned after the tailgate handle or the entire tailgate has been replaced (Fig. 13) on some 2020 Silverado 2500/3500 and Sierra 2500/3500 […]
The latest update to the GDS2 core software (Version 21.3.06900) in TIS2Web recently released includes changes for Diagnostics over Internet Protocol (DoIP) diagnostics, new messaging for MDI 2/MDI usage on […]
MDI 2 Advanced Setup Technical Tips Update
Fuel Feed Pipe Buzzing Sound
February Service Newsletter from the Experts at GM TAC
Exhaust Resonator Rattle
Heated Steering Wheel Operation During a Remote Start
GM Service Know-How Emerging Issues
2024 Essential Tool Forecast
Headlamps Flashing Due to Low Battery Charge
PicoScope Recording for CVTs with Noise Concerns
Dual Clutch Transmission MCVM PUN Characterization
Shift to Park Message
2024 Technician Excellence Program Rewards Dealership Technicians for Training Achievements
Hands-Free Start Power Modes
Poor Ground Path Condition
Inoperative Trunk LatchGM Dealer Equipment (GMDE)
TAC Newsletter April 2024
TAC Newsletter March 2024
Techline Connect Tips March 2023
The EL-52800 Diagnostic Charge Battery Station (DCBS) is the recommended and approved tool for diagnosing battery replacements and submitting battery warranty claims. And effective January 1, 2024, the DCBS (Fig. […]
A new feature will make logging into Techline Connect easier and quicker for users. Previously, Techline Connect had its own unique login, using the Techline Connect desktop icon, and users […]
Take a detailed look at a wide range of innovative features and advanced systems found on GM vehicles to gain a better understanding of proper operation. Each short video reviews how a feature works, highlights operating tips and shows ways to customize settings, if applicable.
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