Archive for December, 2019

New Diagnostic Charge Battery Station Now Shipping to Dealerships

New Diagnostic Charge Battery Station Now Shipping to Dealerships

Early orders of the next generation EL-52800 Diagnostic Charge Battery Station (DCBS) are now shipping from GM Dealer Equipment. Its capabilities will make it easier and faster to test a […]

December 20, 2019
Battery Replacements and Warranty Claims

Battery Replacements and Warranty Claims

When testing or charging a battery in a vehicle that is in for service or is part of the dealership’s inventory, it’s critical to get an accurate diagnosis of the […]

December 20, 2019
New Dealer Infrastructure Guidelines Announced for 2020

New Dealer Infrastructure Guidelines Announced for 2020

GM has recently released revised Dealer Infrastructure Guidelines (DIG) for 2020. The guidelines outline the dealership technology needed to ensure reliable data communications for all dealers, including recommended personal computer […]

December 20, 2019
2020 CT5 TAC Action Center

2020 CT5 TAC Action Center

The GM Technical Assistance Center, or TAC, (U.S.) has established an Action Center for the all-new 2020 Cadillac CT5, the latest luxury sedan in Cadillac’s lineup. (Fig. 16)   Fig. […]

December 20, 2019
Silverado 4500HD/5500HD/6500HD Maximum Speed Based on Axle Ratio

Silverado 4500HD/5500HD/6500HD Maximum Speed Based on Axle Ratio

The 2019 Silverado 4500HD/5500HD/6500HD (Fig. 17) has a maximum vehicle speed that is based on the axle ratio of the truck. For example, if the truck has a 4.88 rear […]

December 20, 2019
Unavailable Driver Assistance Features Messages

Unavailable Driver Assistance Features Messages

Service Drivers Assist and Service Side Object Detection messages and/or a Super Cruise Temporarily Unavailable message may display on the Driver Information Center of some 2019-2020 CT6 models. DTC U0075 […]

December 20, 2019
Air Conditioning Blows Warm Air

Air Conditioning Blows Warm Air

Some 2017-2020 Impala models may have an air conditioning system that blows warm air. During diagnosis, it may be found that there is little to no refrigerant in the A/C […]

December 20, 2019
Engine Harness Chafing and Communication DTCs Set

Engine Harness Chafing and Communication DTCs Set

An illuminated Check Engine MIL may be seen while driving on some 2019-2020 XT4 models. One or more of the following DTCs may be set: B1011, P175F, and/or P25A2. In […]

December 20, 2019
Use Dielectric Grease to Prevent Spark Plug Carbon Tracking

Use Dielectric Grease to Prevent Spark Plug Carbon Tracking

Talc powder applied inside the rubber boot of the ignition coil may be causing a rough running engine or misfire condition on some 2019 Envision, Regal, ATS, CTS, Camaro, and […]

December 13, 2019
2020 Mark of Excellence Program Enrollment Now Open

2020 Mark of Excellence Program Enrollment Now Open

For 20 years, the Mark of Excellence program (U.S.) has recognized the achievements of GM dealership personnel. (Fig. 6) Service technicians enrolled in the program can earn both recognition as […]

December 13, 2019
GDS 2 Core Software Update Released

GDS 2 Core Software Update Released

An update to the GDS 2 core software (Version 21.2.08000) was released on December 9 in TIS2Web. The GDS 2 update includes numerous bug fixes, including a fix for the […]

December 13, 2019
Printing to a PDF File in GDS 2

Printing to a PDF File in GDS 2

When running Vehicle DTC and ID Information in the GDS2 application, it will run the Vehicle DTC service to check all vehicle modules for DTCs. When the Vehicle DTC check […]

December 13, 2019
Cooling Fans Running for an Extended Period

Cooling Fans Running for an Extended Period

Some 2020 Silverado 1500 and Sierra 1500 models equipped with the 3.0L diesel engine (RPO LM2) (Fig. 12) may have the engine cooling fans running continuously for an extended period […]

December 13, 2019
Extended Engine Crank Time

Extended Engine Crank Time

Some 2018-2019 Equinox and Terrain models may have an extended crank time that occurs intermittently after the vehicle has been sitting for at least 20 minutes. In this case, it […]

December 13, 2019