Information on Malfunction Indicator Lamp (MIL) Illuminated – Multiple DTCs Set – 2020-2021 Buick & Chevrolet

2021 Chevrolet Trailblazer

NHTSA ID Number: 10178275 Manufacturer Communication Number: 20NA120   Summary This informational bulletin explains how to check if the pulley and/or drive chain has any damage caused by low fluid or a code set that causes the transmission to default maxing out pressure.   4 Affected Products Vehicles MAKE MODEL YEAR BUICK ENCORE 2020 CHEVROLET MALIBU 2019-2020 … Read more

M4M CVT7 DTCs Setting After Transmission Replacement – 2014-2015 Chevrolet Spark

2015 Chevrolet Spark

NHTSA ID Number: 10178311 Manufacturer Communication Number: PIP5732   Summary This Preliminary information communicates to the dealer technician to replace the X2 TCM connector and the terminated leads to address DTCs after the transmission is replaced if published diagnostics does not lead to root cause of the DTCs that are setting.   2 Affected Products Vehicle MAKE … Read more