Information on Aero Shutter Related Diagnostic Codes – 2019-2021 Cadillac Chevrolet GMC

2021 Chevrolet Tahoe

NHTSA ID Number: 10198869 Manufacturer Communication Number: 21NA077   Summary This informational bulletin provides information for dealers/technicians on Aero Shutter Related Diagnostic Codes.     11 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 1500 2019-2021 CHEVROLET SILVERADO 2500 2020-2021 CHEVROLET SUBURBAN 2019-2021 CHEVROLET TAHOE 2019-2021   Condition Some customers may comment on seeing a Check engine …

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Engine Wire Harness Chafing / IPC Gauges Sweep / IPC Warning Message / SES/Check Engine/MIL / No Start / No Crank / Runs Rough / Stalls / Reduced Engine Power / Various DTCs – 2019-2021 Cadillac Chevrolet GMC

2020 Chevrolet Silverado 1500

NHTSA ID Number: 10224856 Manufacturer Communication Number: 21-NA-149 Summary This technical bulletin provides repair information to correct a customer concern of Engine Wire Harness Chafing.   Condition 1 This Condition pertains to vehicles equipped with engine 2.7L, L3B only. Some customers may comment on any of the following concerns: – SES MIL – No Start – No …

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Engineering Information – Service Engine Soon Lamp Illuminated, DTCs P0494, P2CB9, U0632 and/or U0633 Set – 2020-2021 Cadillac Chevrolet GMC

2021 Chevrolet Suburban

NHTSA ID Number: 10187736 Manufacturer Communication Number: PIE0601A   Summary This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Service Engine Soon Lamp being illuminated.   10 Affected Products Vehicles MAKE MODEL YEAR CADILLAC ESCALADE 2021 CADILLAC ESCALADE ESV 2021 CHEVROLET SILVERADO …

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