Diesel Exhaust Fluid

Diagnostic Tip – Diesel Exhaust Fluid System Contamination – 2010-2023 Chevrolet & GMC

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Chevrolet GMC Cadillac

NHTSA ID Number: 10222781 Manufacturer Communication Number: 19-NA-237 Summary This informational bulletin explains how to identify possible DEF contamination.   Condition Some customers may comment on one or more of the following conditions: Exhaust fluid quality poor message on the Driver Information Center (DIC). Diesel exhaust fluid warning lamp on. Other exhaust fluid quality related concerns.   … Read more

Diesel Exhaust Fluid Calibration Enhancement – 2010-2011 Chevrolet & GMC

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2011 Chevrolet Silverado

NHTSA ID Number: 10040503 Manufacturer Communication Number: SB-11001 Summary GM SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. THE FUEL INJECTION SYSTEM MAY NOT OPERATE AS INTENDED. IF THIS OCCURS THE MALFUNCTION LIGHT MAY ILLUMINATE, AND VEHICLE SPEED COULD BE LIMITED. *RM UPDATED 10/4/11.   6 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET EXPRESS 2010-2011 CHEVROLET … Read more

Exhaust Fluid Range, Exhaust Fluid Quality Poor, Service Exhaust Fluid System or Service Emission – 2010-2016 Chevrolet Express, Silverado & GMC Savana, Sierra

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2016 Chevrolet Silverado 3500

NHTSA ID Number: 10138701 Manufacturer Communication Number: 12-06-04-002C   Summary This informational bulletin provides general information and helpful guidelines to use when diagnosing and repairing diesel exhaust fluid related DIC warnings and messages. Diesel exhaust fluid related DTCs, P207F, P20EE, P2BAD, P249D, P249E or P202E. If the correct reset procedure is not followed, message may remain.   … Read more