2500HD

Malfunction Indicator Lamp (MIL) Illuminated – DTC P0421, P0422, P0480, P119E, P11D0, P11DB, P11DC, P11FC, P20EE, P220B, P22A0, P22A2, P22A3 and/or P24A0 Set – 2020 Chevrolet Silverado & GMC Sierra 2500HD/ 3500HD

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2020 Chevrolet Silverado

NHTSA ID Number: 10183197 Manufacturer Communication Number: 20NA195 Summary This technical bulletin provides a procedure to replace the NOx2 sensor if found the cause of the customers concern.   Parts Information Causal Part Description Part Number Qty X SENSOR, NOX (POSN 2) 12695882 1     SEOCONTENT-START – 2020 – CRC – 10/26/20 Copyright 2020 General Motors … Read more

OnStar Over the Air Update for TTY / TDD Operation and Continuous Improvement Changes – 2019-2021 Buick Cadillac Chevrolet GMC

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2021 Chevrolet Camaro

NHTSA ID Number: 10183198 Manufacturer Communication Number: 20NA196 Summary This service bulletin provides information and a service procedure for dealers/technicians on OnStar Over the Air Update for TTY / TDD Operation and Continuous Improvement Changes.       SEOCONTENT-START Copyright 2020 General Motors LLC. All Rights Reserved. Service Bulletin Bulletin No.: 20-NA-196 Date: November, 2020 TECHNICAL Subject: … Read more

Identifying Non-GM ECM Calibration Use and Power-up Hardware Detection in Duramax Diesel Engines Using GDS 2 – 2019-2023 Cadillac Chevrolet GMC

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General Motors

NHTSA ID Number: 10222660 Manufacturer Communication Number: 20-NA-090 Summary This informational bulletin provides a way for the technician to identify if the ECM has been modified.   General Motors Position on Aftermarket Power-Up Devices General Motors does not support or endorse the use of devices or modifications that when installed, increase the engine horsepower and torque. This … Read more

Radio Software Version V135116 Over-the-Air Update – 2020 Chevrolet & GMC

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2020 Chevrolet Camaro

NHTSA ID Number: 10178261 Manufacturer Communication Number: 20NA012   Summary This Technical bulletin provides service procedure information for dealers/technicians on Radio Software Version V135116 Over-the-Air Update.   13 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET BLAZER 2020 CHEVROLET CAMARO 2020 CHEVROLET COLORADO 2020 CHEVROLET EQUINOX 2020 CHEVROLET MALIBU 2020 CHEVROLET SILVERADO 1500 2020 CHEVROLET SILVERADO 2500 2020 … Read more

Pickup Box Endgate Will Not Fully Close by Itself – 2019-2020 Chevrolet Silverado & GMC Sierra

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2020 Chevrolet Silverado

NHTSA ID Number: 10178264 Manufacturer Communication Number: 20NA059   Summary This technical bulletin provides repair information to correct a customer concern of the pickup box endgate will not fully close by itself.   6 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 1500 2019-2020 CHEVROLET SILVERADO 2500 2020 GMC SIERRA 1500 2019-2020 GMC SIERRA 2500 2020   … Read more