Archive for July, 2020

The enhanced exhaust brake is one of several improvements in 2020 Silverado and Sierra models equipped with the 6.6L Duramax diesel engine (RPO L5P). The exhaust brake feature can be […]

Some 2020 Encore GX and 2021 Trailblazer models may have several electrical conditions, including no audio from the radio, an inoperative power liftgate (RPO TC2), if equipped, and/or an inoperative […]

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 […]