Transport CanadaCritical
2021 RAM 4500Transport Canada Recall #2023026
The official notice
Defect
On certain trucks and chassis-cabs equipped with a 6.7 L Cummins diesel engine, the intake air heater relay could short circuit. This could happen even when the vehicle is parked, and the ignition switch is in the off position.
Safety Risk
A short circuit could create a fire risk.
Remedy
FCA Canada will notify owners by mail and instruct you to take your vehicle to a dealership to replace the intake air heater relay. FCA recommends that you should park your vehicle outside and away from other vehicles or buildings until the recall repairs are completed.
21,852 vehicles affectedMfr ref: 13AUpdated June 10, 2026