Auto Recalls for Consumers

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Auto Recalls For Consumers
by General Motors, LLC

Technical Service Bulletins for the 2020 CHEVROLET 4500HD

Manufacturer technical service bulletins received by the National Highway Traffic Safety Administration to date. Call the Vehicle Safety Hotline toll free at (888) 327-4236 to report safety defects or to obtain information on cars, trucks, child restraints, highway or traffic safety.

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ComponentSummary

356230 EQUIPMENT ADAPTIVE/MOBILITY, VEHICLE CONTROLS, STEERING

Jan 03, 2022 - This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure, when diagnosing vibration concerns.

060000 ENGINE AND ENGINE COOLING

Dec 27, 2021 - This service bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area.

350000 EQUIPMENT

Dec 27, 2021 - This service bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area.

060000 ENGINE (PWS)

Dec 20, 2021 - This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.

111000 ELECTRICAL SYSTEM, 12V/24V/48V BATTERY

Dec 20, 2021 - This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements.

100000 POWER TRAIN

Aug 09, 2021 - This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.

102000 POWER TRAIN, MANUAL TRANSMISSION

Aug 09, 2021 - This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.

103000 POWER TRAIN, AUTOMATIC TRANSMISSION

Aug 09, 2021 - This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.

132000 VISIBILITY, GLASS, SIDE/REAR

Aug 09, 2021 - This service bulletin provides information for dealers/technicians on glass ultraviolet (UV) Ray protection and tint percentage.

350000 EQUIPMENT

Aug 09, 2021 - This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.

350000 EQUIPMENT

Aug 09, 2021 - This service bulletin provides information for dealers/technicians on glass ultraviolet (UV) Ray protection and tint percentage.

350000 EQUIPMENT

Aug 09, 2021 - This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.

350000 EQUIPMENT

Aug 09, 2021 - This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.

356000 EQUIPMENT ADAPTIVE/MOBILITY

Aug 09, 2021 - This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.

071410 FUEL SYSTEM, GASOLINE, STORAGE, EVAPORATIVE EMISSIONS, CANISTER

Jul 19, 2021 - This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.

110000 ELECTRICAL SYSTEM

Jul 06, 2021 - This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.

020000 SUSPENSION

Jun 07, 2021 - This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.

060000 ENGINE (PWS)

Jun 07, 2021 - This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.

350000 EQUIPMENT

Jun 07, 2021 - This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only).

350000 EQUIPMENT

Jun 07, 2021 - This service bulletin provides information on Enhancing Field Product Reports with Digital Pictures.
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