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 […]

2014-2019 Corvette models equipped with the 6.2L V8 engine (RPO LT1, LT4, LT5) with a dry sump oil system (RPO Z52) (Fig. 31) require an engine oil change immediately after […]

The engine wiring harness may be rubbing on the edge of the battery tray on some 2016-2018 Malibu models equipped with the 1.5L engine (RPO LFV). As a result, the […]

10218.08V – Emerging Issues (U.S.) August 9, 2018 The latest service topics from GM Brand Quality and Engineering are covered, including Camaro convertible top replacement (Fig. 34) and off-road lamp […]

New performance calibrations are available from Chevrolet Performance for 2014-2018 Corvettes and 2017-2019 Camaros that deliver greater handling on the track as well as during daily driving. The calibrations have […]

The latest update to the GDS2 core software (Version 20.1) in TIS2Web includes changes to the VIN functionality on the Vehicle Selection screen and access to multiple diagnostic packages. On […]

A new software update (CH-47976-250) for the CH-47976 Active Fuel Injector Tester (AFIT) is now available for download that adds 2019 model year applications. The software release includes the following: […]

Water may be found in the rear compartment well on some 2018-2019 Regal Sportback models. There also may be several electrical conditions, including an incorrect front passenger airbag on/off indicator, […]

The push to talk button on the steering wheel (Fig. 9) is used to answer an incoming call or activate voice recognition with the infotainment system on some GM models. […]