Archive for December, 2019

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 […]

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. […]

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 […]

服务驱动程序辅助和服务侧对象检测消息和/或超级巡航暂时不可用的消息可能会在2019-2020CT6模型的驾驶信息中心上显示。DTC U0075 [...]

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 […]

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 […]

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 […]

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 […]

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 […]

一些2020 Silverado 1500和Sierra 1500型号配备了3.0L柴油发动机（RPO LM2）（图12），可以连续运行的发动机冷却风扇长时间[...]

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 […]

在2019-2020 2019-2020 Silverado 1500和Sierra 1500型号的破碎或宽松的发动机地面电缆/带配备2.7L发动机（RPO L3B），5.3L发动机（RPO L84）或6.2L发动机[...]

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 […]