Chevrolet · Canada · Crit
Chevrolet Silverado HD: Electrical
Affects Chevrolet Silverado HD · 2017–2019 — about 40K vehicles.
The hazard
Issue: A problem with the engine-block heater cable or the terminals that connect the heater cable to the block heater could cause a short circuit. Note: This problem only affects trucks equipped with a Duramax diesel 6.6 litre engine and the optional engine-block heater cable. Safety Risk: A short circuit could cause damage to engine components and create the risk of a fire. Corrective Actions: The company will notify owners by mail and instruct you to take your vehicle to a dealer to either replace the engine-block heater or replace both the engine-block heater and cord, depending on the model. Do not use your engine-block heater until the repairs are performed.
What to do
Contact your dealer; the remedy details were not included in the filing.