Chevrolet Silverado 2500 2017–2019 — technical service bulletin
Bulletin N212346580-01 · NHTSA communication 10209106 · issued Mar 16, 2022
Technical service bulletin
communication type
Electrical System
component
2017–2019
model years
12
vehicle entries
Official 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.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.