Cooling Fans Continuously Run, Malfunction Indicator Lamp (MIL) Illuminated – DTC P2B60, P1098, P26BB, P149D, P0421, and/or P0606 Set – 2021 Chevrolet Silverado & GMC Sierra 1500

2021 Chevrolet Silverado 1500

NHTSA ID Number: 10198877 Manufacturer Communication Number: 21NA096   Summary This technical bulletin provides a procedure to program the ECM to correct the customers concern.     2 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 1500 2021 GMC SIERRA 1500 2021   Condition Some customers may comment on one or more of the following conditions: •   … Read more

MIL illuminated with DTC P1098 and/or P26BB – 2020 Buick Cadillac Chevrolet GMC

2020 Chevrolet Blazer

NHTSA ID Number: 10206730 Manufacturer Communication Number: PIP5675G   Summary This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history.  That this may be caused by a software anomaly, and that GM is currently looking into the issue. It provides testing … Read more

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 … Read more