Sunroof Drain Hose Extensions
There may be a gurgle or sloshing sound heard on some 2021 Tahoe, Suburban, Yukon, and Escalade models equipped with a panoramic sunroof (RPO C3U). (Fig. 14) The sound may […]
There may be a gurgle or sloshing sound heard on some 2021 Tahoe, Suburban, Yukon, and Escalade models equipped with a panoramic sunroof (RPO C3U). (Fig. 14) The sound may […]
A wiring harness condition or loose knock sensor bolt may be found on some 2020 Camaros with the 2.0L 4-cylinder engine (RPO LTG). The Check Engine light may be illuminated […]
Some 2019-2021 Silverado, Sierra; 2021 Tahoe, Suburban, Yukon, and Escalade models equipped with the 5.3L engine (RPO L84) or 6.2L engine (RPO L87) (Fig. 19) may have any of the […]
Some 2020 Silverado and Sierra models equipped with the 8-speed automatic transmission (RPO MQE) may have a slipping or improper shifting condition or may have defaulted to only one gear. […]
A factory provided rearview camera kit is available on 2013-2021 Express and Savana cutaway models as well as 2019-2021 Silverado 1500, Sierra 1500, 2020-2021 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD models. […]
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 […]
When 2018-2021 GM models equipped with an Infotainment 3 System (RPO IOR, IOS, IOT, IOU, IOV) (Fig. 26) come into the dealership with various system concerns – the radio display […]
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 […]