GMC TSB #N212346580-01
2018 GMC Sierra 3500
Affected Component: EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER
- Summary
- Customer Satisfaction Program - certain vehicles equipped with the Duramax diesel 6.6 liter engine and the optional engine-block heater cord, may have a condition in which the block heater cable function was disabled. Dealers will replace the engine block heater and cord.