GM has announced the all-new Technician Excellence Program (U.S.) for 2022 to recognize dedicated dealership service technicians. (Fig. 1) Enrolled technicians who achieve Gold Certification, Master Technician Certification (MTC), or […]
The Chevrolet Multi-Flex tailgate and GMC MultiPro tailgate (RPO QK2) available on the 2022 Silverado 1500, Silverado 2500/3500, Sierra 1500 and Sierra 2500/3500 offers flexibility and functionality designed to improve […]
Some 2016-2020 Camaro models (Fig. 7) equipped with the 8-speed automatic transmission (RPO M5T, M5U) or 10-speed automatic transmission (RPO MF6, MGL, MI1, MI2, MI4) may have a Shift to […]
The Chevrolet Complete Care program (U.S.) has been updated recently to include an extension of the Included Maintenance timing requirements for the owners of 2020-2022 Corvette models (C8) (Fig. 11) […]
If an engine ticking or knocking sound is noticed on some 2019-2022 Silverado, Sierra; 2021-2022 Tahoe, Suburban, Yukon and Escalade models equipped with the 5.3L V8 engine (RPO L84) (Fig. […]
A new torque specification has been released for ACDelco spin-on oil filters installed on 2000-2022 GM models equipped with a gasoline engine. The new specification is in response to possible […]
A wrinkle or bubble may be seen in the stripe decal or hood wrap around the outer edges of the hood air scoop on some 2019-2022 Camaro models. (Fig. 17) […]
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 […]
The new 2022 GM Service Technical College (STC) Course Catalog (U.S.) (Fig. 1) is now available on the Service Technician Training, Recruiting, Retention, and Recognition App on GlobalConnect and on […]
The air conditioning may blow warm air on some 2021-2022 Tahoe, Suburban, Yukon and Escalade models. The Check Engine MIL may be illuminated and DTCs B1AA3 (Run/Crank Relay Coil Control), […]
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 […]
GM’s global repair strategy for large wiring harnesses (body, engine, instrument panel, forward lamp, headliner/roof harness, and truck chassis) is to repair/replace the components (cables, terminals, connectors, etc.) instead of […]
An illuminated Check Engine MIL and DTC P3075 (Engine Coolant Flow Too Low) may be set in the Engine Control Module (ECM) on some 2019-2022 XT4, Blazer, Silverado 1500, Sierra […]
Some 2019-2020 Encore and Trax models may have several features operating improperly, including an unwanted windshield wiper swipe upon starting the vehicle, the front wipers may not park and the […]
The new Infotainment 3 Premium system (RPO IOK) available on the 2022 Tahoe, Suburban and Yukon features Google built-in compatibility. (Fig. 14) Google built-in offers access to some popular Google […]
The exhaust brake may not seem to work properly on some 2020 Silverado and Sierra models equipped with the 6.6L Duramax diesel engine (RPO L5P). No DTCs will be set. […]
Some 2020-2022 Silverado 2500/3500 and Sierra 2500/3500 trucks equipped with the 6.6L Duramax diesel engine (RPO L5P) may have a coolant leak under the vehicle. The Check Engine MIL may […]
The Mark of Excellence program (U.S.) recognizes the achievements, professionalism, and commitment of many members of the GM dealership community. For 2022, service technicians enrolled in the program can earn […]
SiriusXM with 360L Connectivity
Next Generation dexos1 Gen 3 Engine Oil Now Available
Short Range Radar Conditions in Highly Reflective Environments
Turbocharger Wastegate Linkage Wear
Poor Performance During High Ambient Temperatures
Fleet Vehicle Aftermarket Calibrations may Limit Vehicle Speed, Reduce Engine Power, and Cause Vibration at Idle
Transmission Neutral Service Mode
TechLine Connect Software Update Adds New Direct Launch Programming Functionality
Poor Splice Connection in 1.2L Engine Wiring Harness
GDS2 Update Includes New MDI Tool Selection Window
New Dealer Infrastructure & Security Guidelines Released for 2022
Driver’s Outside Rearview Mirror Appearance
DTCs Set Due to Transmission Fluid Pump Fuse
Charge Air Cooler Icing During Extreme Cold Weather
Driver Assistance Systems Disabled due to Incorrect Tire Size
GM Service Know-How Emerging IssuesService Programming Direct Launch Handling
DCBS GM Max Current 100A Setting Quick Guide
GM EV Safety Gloves
Tips for Warranty Reprogramming Events
Techline Connect Setup
for Updates
When working on any high voltage system on a GM vehicle, certified and tested high voltage insulation gloves must be worn. (Fig. 9) Certified and up-to-date Class “0” insulation gloves […]
After installing a number of select GM Genuine Accessories (Fig. 16), a calibration update from the Techline Customer Support Center (TCSC) is required in order to complete the installation properly. […]
The Safety Alert Seat available on many GM models provides a vibration, or haptic warning, in the driver’s seat cushion to alert the driver of the direction of potential…
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