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Ram Diesel Trucks Heater Relay Can Cause Fire

NHTSA campaign 21V798000 · Reported 2021-10-14 · Chrysler (FCA US, LLC)

critical How serious is it? About this label

Serious — a fire can start with the truck parked and shut off, so park outside, away from buildings and other vehicles, until it is repaired; the notice does not tell owners to stop driving.

⚠ Park outside, away from buildings — fire risk. See all such recalls.

What's wrong, in plain English

These diesel pickups and cab chassis trucks have a relay — an electrical switch — for the intake heater that helps the engine start in cold weather. It can short out and start a fire, whether the ignition is on or off. A dealer will inspect the relay and replace it if needed, free of charge. This recall has since been replaced by a newer, broader recall, 23V060, which covers the same problem on these trucks.

What you should do

1. Check your VIN at nhtsa.gov/recalls — look for campaign 21V798000 and the newer 23V060000 that supersedes it.
2. Park outside, away from buildings and not near other vehicles, until the work is done.
3. Contact your Ram dealer or FCA US at 1-800-853-1403 (recall Y76) for the free inspection and relay replacement.

Affected vehicles (6)

Who to contact

RAM — official RAM recall lookup

Customer service: 1-800-853-1403

Any franchised dealer for the brand can do the repair. Phone numbers are taken from manufacturer sites and recent NHTSA notices; if one has changed, the number in your own recall letter is the one to use.

The bigger picture

Official notice

Component
ELECTRICAL SYSTEM:WIRING:RELAYS/SOLENOIDS
Summary
Chrysler (FCA US, LLC) is recalling certain 2021-2022 Ram 3500, 2500 pickup trucks, and Ram 3500, 4500, and 5500 cab chassis vehicles equipped with Cummins 6.7L Turbo Diesel engines. An electrical short in the relay may cause a vehicle fire with the ignition on or off.
Safety risk
A vehicle fire increases the risk of injury.
Remedy
Owners are advised to park these vehicles outside of buildings or structures, and not near other vehicles, until the vehicle has been remedied. Dealers will inspect and, if needed, replace the Solid State Intake Heater Grid Relay ("Relay"); if FCA US Recall ID Y08 (NHTSA Recall ID 21V-163) is open, then insulating material will be applied to the Relay after inspection. Owner notification letters were mailed November 10, 2021. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA US, LLC's number for this recall is Y76. This recall has been superseded by 23V060.

Verify your specific vehicle by VIN at nhtsa.gov. Recall repairs are free of charge by law.