Archive for September, 2017

The Positive Crankcase Ventilation (PCV) system and other components that affect emissions, but do not turn on the Check Engine lamp if there is a malfunction, are required by the […]

The Check Engine MIL may be illuminated and DTC P20EE (NOx Catalyst Efficiency Below Threshold) may be set on some 2017-2018 Silverado and Sierra models equipped with the 6.6L Duramax […]

The latest update to the GM Global Electronic Parts Catalog (EPC) includes several new features that make it easier and more convenient to search for parts and to quickly find […]

At TechLink, we cover a wide range of GM service topics, from the latest diagnostic and technical repair information to new model features, special tools and more. It’s our mission […]

Did you know the new Dealer Case Management (DCM) system allows U.S. GM dealership service technicians to create, view, and update GM Technical Assistance Center (TAC) cases in real-time? DCM […]

A new version (18.1.161) of the GDS2 core software has been released recently. The update includes numerous software bug fixes.   To download the software update, click the GDS 2 […]

GM has recently released a new refrigerant PAG (Polyalkylene Glycol) oil (Fig. 7) specifically engineered to service GM vehicles built with belt-driven air conditioning (A/C) compressors that use the environmentally-friendly […]

The cooling system surge tank for 2017 Silverado and Sierra models equipped with the 6.6L Duramax diesel engine (RPO L5P) features a new design with two tank caps. The fill […]

The all-new 2018 GMC Terrain is available with a variety of new features that may be unfamiliar to some customers, who may bring their vehicle into the dealership for service […]

The GM Technical Assistance Center, or TAC, (U.S.) has established Action Centers for the 2018 Cadillac CT6 equipped with Super Cruise (RPO UKL) (Fig. 19) and the 2018 Buick Enclave. […]