Warranty replacement of wheels, seat covers and cushions, outside mirror assemblies, steering wheels, and interior door trim requires GM pre-authorization before repairs are made (U.S.). The Pre-Repair Authorization (RPA) process […]
The Active Fuel Injector Tester (AFIT), R1234yf A/C Machine, Pico Scope NVH Tool, and TPMS and RF Tool are just a few of the special service tools that require occasional […]
Fluid may be noticed leaking from the front of some 2019 XTS, Impala and Acadia models equipped with the 6T70, 6T75 or 6T80 automatic transmission (RPO MHM, M7U, M7W, M7V). […]
Some 2019-2020 Blazer, Impala and Acadia models equipped with the 2.5L 4-cylinder engine (RPO LCV) and 2019-2020 Equinox and Terrain models equipped with the 2.0L 4-cylinder engine (RPO LTG) may […]
There may be several audio conditions, including loss of audio, loss of chime, loss of turn signal indicator sound, low or no audio from a speaker channel, or abnormal speaker […]
Some 2016-2019 Envision models may have a Service Driver Assist message displayed on the Driver Information Center along with an inoperative Lane Departure Warning actuator in the Safety Alert Seat […]
The Advanced Trailering System available on the 2019-2020 Silverado 1500 and 2020 Silverado HD (Fig. 18) and the ProGrade Trailering System available on the 2019-2020 Sierra 1500 and 2020 Sierra […]
The new trailering app (RPO U1D) (Fig. 23) available on the 2019-2020 Silverado 1500 and Sierra 1500 and the 2020 Silverado HD and Sierra HD uses the K68 Trailer Lighting […]
Technicians using the GM Service Information (SI) will soon find updated Removal/Installation and Replacement procedures (Fig. 1) with more detailed steps and fewer procedure links to other SI documents. The […]
The Next Generation Digital Vehicle Platform, GM’s all-new electronic platform that will power the next generation of GM models and systems, including electric vehicles, active safety systems, infotainment systems, and […]
Some 2017-2020 Bolt EV models may have a loss of propulsion, an illuminated Malfunction Indicator Lamp (MIL) and DTCs P0A3F (Drive Motor Position Sensor Circuit) and/or P1B03 (Drive Motor Position […]
The new 2020 GM Service Technical College (STC) Course Catalog (Fig. 12) is now available on the Service Technician Training, Recruiting, Retention, and Recognition App on GlobalConnect and on GMSTC.com. […]
The optional trailer-tow mirrors on 2020 Silverado HD and Sierra HD models feature a power folding function (RPO DWI) and an available power extending function (RPO DZC), which makes it […]
For 2020 Silverado 1500, Silverado 2500HD/3500HD, Traverse, Acadia, Sierra 1500, Sierra 2500HD/3500HD, XT4, XT5, and XT6 models equipped with Infotainment 3 systems (RPO IOR, IOS, IOT, IOU), technicians may no […]
GM Customer Care and Aftersales recently introduced the MAHLE TechPRO Professional Aftermarket Diagnostics application for diagnosing non-GM vehicles in U.S. dealerships’ used car departments and collision repair centers. (Fig. 16) […]
2015-2020 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD trucks driven regularly in extreme cold climates may require use of upgraded power steering hoses. Extreme cold may affect the pliability of the power […]
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 […]
Power Folding Top Diagnostic Tips
V8 Engine Vibration Condition at 1,200 RPM
Get It Together with the New GM ToolNet Application
Rough Running Engine in Extreme Cold Temperatures
Only 11-Digit PUN on Service Solenoid Body Assembly
Surround Vision Camera Diagnostics
Park Assist Control Module Falls Off CAN Bus
GM Loan Tool Program Offers Cost-Effective Access to Special Tools
Accessory Rear Seat Infotainment Turns Off When Doors are Closed
DTC P0747 Setting at Engine Start-up
Engine Oil Overfill May Lead to Engine Vibration
Rear Fuel Tank and Fuel Transfer Conditions
Horn Sounds Muffled or Distorted
Front Brake Squeal Sound
Dinghy Towing the Colorado and Canyon
GM Service Know-How
EL-52545 TPMS and RF Tool
PC & Diagnostic Bundle
TechPRO Professional
Aftermarket Diagnostics
Tips for Warranty Reprogramming Events
Early orders of the next generation EL-52800 Diagnostic Charge Battery Station (DCBS) are now shipping from GM Dealer Equipment. Its capabilities will make it easier and faster to test a […]
GM has recently released revised Dealer Infrastructure Guidelines (DIG) for 2020. The guidelines outline the dealership technology needed to ensure reliable data communications for all dealers, including recommended personal computer […]
2019 GM models feature a variety of technology and new systems that may be unfamiliar to technicians and service consultants in GM dealerships. Following are several videos highlighting new features […]
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