As a result of technician feedback, GM is implementing a new Diagnostic Time Strategy. This new process is designed to provide adequate time for technicians to diagnose the most difficult […]

The latest update to the GM Global Electronic Parts Catalog (EPC) includes several new features that make it easier to find the right parts, including new compliance alerts, better alignment […]

The most powerful and fastest production Corvette ever made. (Fig. 1) That’s the 2019 ZR1, with its hand-assembled 6.2L supercharged V8 engine (RPO LT5) producing 755 horsepower and 715 lb.-ft. […]

Due to the size of the aerodynamic components, or ground effects — front fascia splitter, rocker moldings, rear spoiler, etc. — on the 2019 Corvette ZR1 (Fig. 10) as well […]

Starting with the 2019 model year, all Buick, Chevrolet and GMC models — excluding 2019 Silverado legacy models; Sierra legacy models; and Express and Savana models — with a keyed […]

10218.07V – Emerging Issues (U.S.) July 12, 2018   The latest service topics from GM Brand Quality and Engineering are covered, including how labor times are calculated (Fig. 23) and […]

The 2018 Service Technician Satisfaction Survey is taking place now and technicians at all GM dealerships in the U.S. and Canada are encouraged to participate. GM and other automotive manufacturers […]

The all-new 2019 Silverado 1500 and Sierra 1500 trucks will be arriving at dealerships soon. These new trucks feature a fully boxed steel frame that is 88 lbs. (40 kg) […]

For the 2019 model year, Chevrolet and GMC will introduce all-new Silverado 1500 and Sierra 1500 full-size trucks. These light-duty trucks will build upon the traditions of previous Silverado and […]

Some 2011-2019 Silverado 2500/3500 and Sierra 2500/3500 models may have a shudder, bounce or bucking condition from the rear of the truck while braking when towing a gooseneck (Fig. 2) […]

The sliding compartment door latch on the floor center console may be damaged and the door may not open on some 2015-2018 Escalade models. (Fig. 5) Fig. 5 The sliding […]

The driver’s or front passenger’s seat cushion cover may not be installed correctly, resulting in the seatback appearing to lean or be turned forward on some 2015-2018 Silverado, Tahoe, Suburban, […]

10218.06V – Emerging Issues June 14, 2018 The latest service topics from GM Brand Quality and Engineering are covered, including an overview of the new Techline Connect software and tips […]

A new software update is now available for the 2018 CT6 equipped with Super Cruise (RPO UKL). The update includes new instrument cluster messaging (Fig. 1) that explains why Super […]

Beginning with the 2018 model year, a QR code was added to the Certification label (Fig. 3) on all Buick, Cadillac, Chevrolet and GMC models. The new QR code includes […]

Some 2017-2018 Silverado, Tahoe, Suburban, Sierra, Yukon models and Escalade models may have a low refrigerant charge or a refrigerant leak. As a result, the air conditioning system will be […]

The following conditions at low speeds may be found on some 2015-2016 Colorado and Canyon models equipped with the 3.6L V6 engine (RPO LFX): Chugging and/or lack of power when […]

Some 2016-2017 Envision models may have warm air blowing through the rear HVAC vents when the air conditioning is commanded on. If this condition is found, the auxiliary temperature valve […]

After replacement or programming the amplifier on some 2015-2017 Silverado, Tahoe, Suburban, Sierra, Yukon, Escalade and 2014 Silverado 1500 and Sierra 1500 models equipped with infotainment system RPO IO5, IO6 […]