Information on Diesel Exhaust Fluid (DEF) – 2011-2021 Chevrolet & GMC

2018 Chevrolet Silverado

NHTSA ID Number: 10183127 Manufacturer Communication Number: 16NA244   Summary This informational bulletin provides information on Diesel Exhaust Fluid (DEF) and the proper use of the DEF system.   SEOCONTENT-START Service Bulletin Bulletin No.: 16-NA-244 Date: November, 2020 INFORMATION Subject: Information on Diesel Exhaust Fluid (DEF) Brand: Model: Model Year: VIN: Engine: Transmission: from to from to … Read more

Special Coverage Adjustment – Diesel-Emission- Reduction Fluid Tank – 2010-2012 Chevrolet & GMC

2012 Chevrolet Silverado

NHTSA ID Number: 10130605 Manufacturer Communication Number: GCUS-9-2952   Summary 14652A-Special Coverage. On some vehicles a malfunction-indicator light (MIL) may illuminate due to an offset in the temperature sensor in the diesel-emission-reduction fluid (DEF) tank reservoir, increased tank-heater resistance, or reductant-system performance. If this condition occurs within the stated terms, dealer will replace the DEF tank reservoir … Read more

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

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

Diagnostic Tip – Exhaust Fluid Quality Poor Message Difficult To Clear – 2010-2016 Chevrolet & GMC 6.6L Duramax Diesel

2016 Chevrolet Silverado 3500

NHTSA ID Number: 10113907 Manufacturer Communication Number: PIP5007F   Summary This Preliminary Information communication advises the technician that vehicles with engine Regular Production Option Code LGH or LML may have an Exhaust Fluid Quality Poor message displayed on the Driver Information Center. Technician will need to complete the current Service Information diagnostic for any current Diagnostic Trouble … Read more