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 […]

The new 2019 Chevrolet Silverado 4500HD, 5500HD, 6500HD chassis cab models (Fig. 1) are the newest entries in the medium-duty truck market. The trucks are available as regular and crew […]

The new 2019 Chevrolet Silverado 4500HD, 5500HD, 6500HD chassis cab models are equipped with a standard 6.6L Duramax diesel V8 engine (RPO L5D) and Allison 6-speed automatic transmission. (Fig. 8) […]

The GM Upfitter Integration website — gmupfitter.com — offers a variety of valuable information and assistance for technicians and other personnel, including the latest bulletins involving upfitter equipment and technical […]

When shipping any automotive hazardous materials, such as air bags, seat belt pretensioners, brake boosters, compressed gas shocks, batteries, paint, solvents, and other parts, to the Warranty Parts Center (WPC), […]

A lack of engine performance along with an incorrect low fuel range display may be found on some 2017-2018 Acadia, Enclave, Traverse and XT5 models equipped with the 3.6L V6 […]

Some 2011-2015 Volt; 2011-2016 Cruze; 2012-2019 Sonic; 2013-2019 Encore, Trax; and 2014-2017 ELR models equipped with the 1.4L 4-cylinder engine (RPOs LUV, LUU) (Fig. 17) may have a tick or […]

A rubbing or popping sound coming from the front of the vehicle while making a sharp turn at low speeds may be heard on some 2019 Blazer models. One or […]

The infotainment system may display a “Navigation service has expired.” message on some 2018-2019 Regal, ATS, CTS, XTS, Terrain; 2019 CT6, XT4, Blazer, Camaro, Colorado, Equinox, Malibu, Silverado, Volt, Canyon […]

The 2019 Camaro ZL1 1LE (Fig. 1) now offers an available 10-speed 10L90 automatic transmission (RPO MGL). Unique calibrations were developed for the transmission as well as the Electronic Limited […]

The 2017-2019 Camaro ZL1 (Fig. 6) and Camaro SS 1LE; 2018-2019 Camaro ZL1 1LE; and 2015-2019 Corvette models equipped with the 6.2L V8 engine (RPOs LT1, LT4, LT5) feature an […]

The driver’s seat cushion on the 2019 Colorado and Canyon was redesigned to provide better entry and egress as well as improved comfort. Depending on the position of the steering […]

When installing a chain and gear set on the Gen 5 4.3L V6 (RPO LV1, LV3), 5.3L V8 (RPO L83) or 6.2L V8 engine (RPO L86, LT1, LT4) in some […]

Some 2019 XT4 models equipped with the 2.0L 4-cylinder engine (RPO LSY) may have DTC P0238 (Turbocharger Boost Sensor Circuit High Voltage) set after service repairs were performed that required […]