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 this […]

The all-new 2019 XT4 (Fig. 1) is Cadillac’s first entry in the compact luxury SUV market. The 5-passenger SUV is available as a front-wheel drive (FWD) or all-wheel drive (AWD) […]

The 2019 XT4 is the first Cadillac to use electro-hydraulic braking assist, which enhances fuel economy and takes up less space under the hood compared to a traditional vacuum-assisted power […]

The electric parking brake (EPB) may be inoperative on some 2018 Acadia, Enclave, Traverse and XT5 models. The Service Park Brake warning lamp also may be illuminated. To apply the […]

The rear door may be hard to close on some 2015-2017 Colorado and Canyon extended cab models. In addition, there may be a rattle sound from the lower rear door […]

2019 Silverado 1500 and Sierra 1500 models equipped with infotainment system RPO IOT (Fig. 1) are the only models that will have an SD card for the navigation system. There […]

The all-new 2019 Silverado 1500 and Sierra 1500 offer two new V8 engines: the 5.3L V8 (RPO L84) and the 6.2L V8 (RPO L87). (Fig. 1) Fig. 1 These new […]

The supercharged 6.2L V8 engine (RPO LT5) in the 2019 Corvette ZR1 uses five charge air cooling radiators. Behind the front fascia, there are three charge air cooling radiators; one […]

Some Jatco CVTs (continuously variable-ratio automatic transmissions) (RPOs M4M, MR8) available in the 2014-2019 Spark (Fig. 11) may have a short duration shudder on launch from a stop or on […]

Multiple intermittent Malfunction Indicator Lamps (MIL) may be illuminated and a loss of communication with several modules, including several U-codes (DTC) set, may be found on some 2016-2018 Colorado and […]

Some 2019 Equinox, Colorado, Silverado 1500, Terrain, Canyon, and Sierra 1500 models equipped with the HD Rear Vision Camera (RPO UVB) may have a distorted or “fisheye” camera display (Fig. […]

For 2019, the Silverado 1500 (Fig. 1) and Sierra 1500 (Fig. 2) are all-new pickups with new powertrains, mixed material construction, and a wealth of enhanced safety and convenience features. […]

The innovative MultiPro tailgate available on the 2019 Sierra (Fig. 16) offers flexibility and functionality designed to improve loading, unloading and access to the cargo box. It features a primary […]

The supercharger on the 2019 Corvette ZR1 creates a maximum boost pressure of 13.96 psi (96.3 kPa) to help the 6.2L small block V8 engine (RPO LT5) deliver 755 horsepower […]