Silverado

Diagnostic Tip to Diagnose Emission Reduction Fluid Tank Electrical Connector Inspection, Reduced Power Message, Service Emissions System, System Displayed on the Drivers Information Center (DIC) Malfunction Indicator Lamp (MIL) Illuminated – DTC P02C1, P21DD, P221C, P10D9, P10F3, P143C, P20B9, and/or P221E – 2020-2021 Cadillac Chevrolet GMC

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2021 Chevrolet Suburban

NHTSA ID Number: 10187770 Manufacturer Communication Number: 21NA007   Summary This technical bulletin provides a procedure to program the reductant fluid module if found the cause of the customers concern.   8 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 1500 2020-2021 CHEVROLET SILVERADO 2500 2020-2021 GMC SIERRA 1500 2020-2021 GMC SIERRA 2500 2020-2021     SEOCONTENT-START … Read more

Loss of Digital Speedometer DIC Displays After Manual Regen – 2020-2021 Chevrolet Silverado & GMC Sierra 2500HD/ 3500HD

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2021 Chevrolet Silverado

NHTSA ID Number: 10187775 Manufacturer Communication Number: 21NA012   Summary This technical bulletin provides repair information to correct a customer concern of Clean Exhaust Filter, Perform Manual Regen, and Loss of Digital Speedometer DIC Displays.   4 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 2500 2020-2021 GMC SIERRA 2500 2020-2021     SEOCONTENT-START Service Bulletin Bulletin … Read more

Customer Satisfaction Program N202320510 Water Pump Failure – US and Canada Only – 2020-2021 Cadillac Chevrolet GMC

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2021 Chevrolet Silverado 1500

NHTSA ID Number: 10187612 Manufacturer Communication Number: N202320510   Summary Customer Satisfaction Program. Certain vehicles, equipped with a gas engine, may have a condition in which the printed circuit board inside of the water pump may have been manufactured incorrectly potentially causing a water pump failure. The vehicle coolant system temperature is monitored and will display multiple … Read more

Customer Satisfaction Program N202315380 Steering Gear Manufacturing Issue – 2020-2021 Chevrolet & GMC

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2021 Chevrolet Tahoe

NHTSA ID Number: 10187619 Manufacturer Communication Number: N202315380   Summary Service Update. A small number of vehicles may have been built with a cracked steering gear ballnut which could result in noise and reduction of steering performance. Dealers are to replace the steering gear.   4 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 1500 2020 CHEVROLET … Read more

Service Update N202316160 Seat Belt Retractor Spring Broken – 2020 Chevrolet Silverado & GMC Sierra 1500/2500

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2020 Chevrolet Silverado

NHTSA ID Number: 10187622 Manufacturer Communication Number: N202316160   Summary Service Update – Certain 2020 model year Chevrolet Silverado 1500/2500 and GMC Sierra 1500/2500 vehicles may have a condition where the driver side front outboard seat belt may not retract due to a broken rewind spring. If the seat belt is loose, the effectiveness of the restraints … Read more