Archive for February, 2020

Use the Pre-Repair Authorization Process for Quick Warranty Approval

Use the Pre-Repair Authorization Process for Quick Warranty Approval

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 (PRA) process […]

February 27, 2020
Special Tools Software Update Download Process

Special Tools Software Update Download 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 […]

February 27, 2020
Torque Converter Fluid Seal Leak

Torque Converter Fluid Seal Leak

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). […]

February 27, 2020
Flex Plate and Starter Motor Damage

Flex Plate and Starter Motor Damage

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 […]

February 27, 2020
Loss of Audio or Abnormal Speaker Operation

Loss of Audio or Abnormal Speaker Operation

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 […]

February 27, 2020
Safety Alert Seat Lane Departure Warning Inoperative

Safety Alert Seat Lane Departure Warning Inoperative

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 […]

February 27, 2020
Vehicle Systems Work Together to Deliver Trailering App Functionality

Vehicle Systems Work Together to Deliver Trailering App Functionality

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 […]

February 27, 2020
Trailering App Trailer Connection and Lighting Diagnosis Update

Trailering App Trailer Connection and Lighting Diagnosis Update

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 […]

February 27, 2020
Easier-to-Use Service Information Consolidates Information and Reduces Links

Easier-to-Use Service Information Consolidates Information and Reduces Links

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 […]

February 13, 2020
MDI 2 Required for Next Generation Digital Vehicle Platform

MDI 2 Required for Next Generation Digital Vehicle Platform

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 […]

February 13, 2020