Diesel Fuel System Contamination, Malfunction Indicator Lamp (MIL) Illuminated – DTC P026D, P2A00, P0171, P0172 and/or P0300 Set – 2017-2023 Cadillac Chevrolet GMC
NHTSA ID Number: 10222658 Manufacturer Communication Number: 18-NA-361 Summary This technical bulletin provides a procedure to flush the cooler lines to validate if there is excessive debris in the fuel system caused by a failed part. Condition Some customers may comment that the MIL is illuminated. Note: If removing the fuel filter from the filter … Read more