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Ram diesel trucks: heater grid relay can catch fire

NHTSA campaign 21V163000 · Reported 2021-03-11 · Chrysler (FCA US, LLC)

critical How serious is it? About this label

Very serious — a fire can start and cause injury, and until the repair is done you should park outside, away from buildings and other vehicles.

What's wrong, in plain English

These heavy-duty Ram trucks with the 6.7L Cummins turbo diesel have an electrical part called the solid state intake heater grid relay. That part can short out, and a short there can start a fire in the truck. Because of that, Chrysler tells owners not to park these trucks inside buildings or structures, and not near other vehicles, until the final repair is finished. A dealer will check the relay and replace it if needed, and may add insulating material.

What you should do

1. Check your VIN at nhtsa.gov/recalls, and park outside and away from other vehicles until the repair is complete.
2. Call your Ram dealer or FCA US customer service at 1-800-853-1403 (recall numbers Y76 and Y08) to schedule the inspection.
3. Ask the dealer to confirm the current remedy, since this recall has been superseded by recall 21V-798; the repair is free of charge.

Affected vehicles (3)

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
Summary
Chrysler (FCA US, LLC) is recalling certain 2021 Ram 2500, 3500, and 3500, 4500, and 5500 Cab Chassis vehicles equipped with a Cummins 6.7L Turbo Diesel engine. An electrical short may occur in the Solid State Intake Heater Grid Relay, which could result in a vehicle fire.
Safety risk
A vehicle fire increases the risk of injury.
Remedy
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. Customers are advised to not park these vehicles inside of buildings or structures, or near other vehicles until the vehicle has the final repair completed. 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. Owners may contact FCA US LLC customer service at 1-800-853-1403. FCA US LLC's number for this recall is Y08. This recall has been superseded by recall number 21V-798.

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