2021

No Start Or Unable To Perform Theft Relearn After Replacing Or Programming A Module / DTC U1962 – 2020-2023 Buick Cadillac Chevrolet GMC

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Chevrolet Buick GMC Cadillac

NHTSA ID Number: 10224307 Manufacturer Communication Number: PIT5832C Summary This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.   Condition Some technicians may experience one or more of the following concerns after replacing or reprogramming a module on one of the new Vehicle … Read more

Engine Compartment and/ or Inside the IP/Dashboard Tick or Rattle Noise From Purge Solenoid Resonance Through PCV Tube – 2020-2021 Buick Enclave & Chevrolet Traverse

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2021 Buick Enclave

NHTSA ID Number: 10201269 Manufacturer Communication Number: PIP5796B   Summary This Preliminary information communicates a noise from the purge hose heard in the vehicle and the repair preliminary instructions to dampen this noise. PI was modified to add a special labor operation for this PI.     4 Affected Products Vehicles MAKE MODEL YEAR BUICK ENCLAVE 2020-2021 … Read more

Engine Related Shudder / Surge Concerns – 2019-2021 Cadillac Chevrolet GMC

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2021 Chevrolet Tahoe

NHTSA ID Number: 10201315 Manufacturer Communication Number: PIP5794B   Summary This Preliminary information communicates diagnostics to the dealer involving a vehicle shudder concern caused by the camshaft actuator system that can be mistaken for a transmission issue.     26 Affected Products Vehicles MAKE MODEL YEAR CADILLAC ESCALADE 2020-2021 CHEVROLET SILVERADO 1500 2019-2021 CHEVROLET SILVERADO 2500 2019-2021 CHEVROLET … Read more

MIL Illuminated- ECM Update for P026C, P20EE, or P11D5 – 2021 Chevrolet Silverado & GMC Sierra 2500HD/3500HD

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2021 Chevrolet Silverado

NHTSA ID Number: 10198891 Manufacturer Communication Number: 21NA128   Summary This technical bulletin provides repair information to correct a customer concern of MIL Illuminated- ECM Update for P026C, P20EE, or P11D5.     4 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 2500 2021 CHEVROLET SILVERADO 3500 2021 GMC SIERRA 1500 2021 GMC SIERRA 2500 2021   … Read more

Malfunction Indicator Lamp (MIL) Illuminated, DTC P31E8, P31DB, P31D4 and/or P31E2 Set – 2020-2021 Cadillac CT4 & CT5

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2021 Cadillac CT4

NHTSA ID Number: 10198892 Manufacturer Communication Number: 21NA130   Summary This service bulletin provides a repair procedure to correct a customer concern of Malfunction Indicator Lamp (MIL) Illuminated, DTC P31E8, P31DB, P31D4 and/or P31E2 Set.     4 Affected Products Vehicles MAKE MODEL YEAR CADILLAC CT4 2020-2021 CADILLAC CT5 2020-2021   Condition Some customers may comment that … Read more