Components most likely to cause a parasitic draw on the 12V battery on GM models include switches, relays, LIN buses and control modules. A new voltage drop test in Service […]

The 2021 Escalade features industry-first AKG audio technology with an available 36-speaker AKG Studio Reference system that produces professional studio sound. AKG is known worldwide for microphones and headphones used […]

The air conditioning may not be getting cold enough or is blowing warm air on some 2018-2020 Malibu and 2019-2020 XT4 models. The A/C compressor on these models may have […]

If the trailer lighting on customers’ trailers connected to some 2019-2020 Silverado and Sierra models does not operate as expected, such as inoperative lighting, improper trailer detection, or intermittently flashing […]

As the weather turns colder in parts of the country, wreaking havoc on roads, chances for tire damage or irregular tire wear to occur become more prevalent. New GM vehicles […]

Dealership personnel looking for the Pre-Delivery Inspection (PDI) forms (Fig. 21) for current GM vehicles will find them through the PDI Forms app on GM GlobalConnect. PDI forms can no […]

Before calling the GM Technical Assistance Center (TAC) for any Bluetooth or phone projection (Apple CarPlay and Android Auto) concerns (Fig. 24), TAC has released a template to follow when […]

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 […]

Completely redesigned with advanced technology and iconic style, the all-new 2021 Escalade is now arriving at Cadillac dealerships. (Fig. 1) With innovative features like a curved Organic Light Emitting Diode […]

It’s been called a game changer in automotive interior design and technology. The industry’s first-ever curved Organic Light Emitting Diode (OLED) instrument display in the 2021 Escalade revolutionizes the way […]

The latest update to the Techline Connect software that was recently released includes changes designed to enhance the efficiency and productivity of the application. (Fig. 21)   Fig. 21   […]

The Mark of Excellence program (U.S.) (Fig. 23) recognizes the achievements, professionalism, and commitment of many members of the GM dealership community. For 2021, service technicians enrolled in the program […]

A number of fuel-related DTCs may be set on some 2017-2018 Silverado, Sierra; 2019-2021 Silverado 2500HD/3500HD, Sierra 2500HD/3500HD, and Silverado 4500HD/5500HD/6500HD models equipped with the 6.6L Duramax diesel engine (RPO […]

Some 2021 Tahoe, Suburban, Yukon and Escalade models may have a Service Theft Deterrent message on the instrument cluster and several DTCs set, including: B113C (Security Indicator Control), B13AC (Lane […]

The Field Service Engineer (FSE) Technician Recognition Awards (U.S.), a new recognition program that celebrates the skill and dedication of dealership technicians who have recently worked with FSE’s on challenging […]

The 3.0L Duramax diesel engine (RPO LM2) on some 2020-2021 Silverado and Sierra models and 2021 Tahoe, Suburban, Yukon and Escalade models may have possible terminal corrosion in the coolant […]

A fuel odor from the engine compartment may be found on some 2020-2021 Encore GX and 2021 Trailblazer models equipped with the 1.3L engine (RPO L3T). Perform an inspection of […]

When replacing the hood latch (Fig. 16) on 2016-2018 Camaros, the service replacement hood latch will require the use of a new connector. The new service latch has a three-wire […]