Ram Diesel Trucks Relay Fire Risk
critical How serious is it? About this label
A vehicle fire increases the risk of injury. Owners are told to park these vehicles outside of buildings or structures, and not near other vehicles, until the vehicle has been repaired.
⚠ Park outside, away from buildings — fire risk. See all such recalls.
Key facts
| NHTSA campaign number | 21V798000 |
|---|---|
| Reported to NHTSA | Oct 14, 2021 |
| Manufacturer | Chrysler (FCA US, LLC) |
| Part affected | Electrical System:wiring:relays/solenoids |
| Vehicles covered | 6 model/year combinations, model years 2021–2022 |
| Do-not-drive advisory | No |
| Park-outside advisory | Yes — fire risk |
| Repair | Free at any franchised dealer |
What's wrong, in plain English
Some Ram trucks with a Cummins diesel engine have a relay that may develop an electrical short, whether the ignition is on or off. This short can cause a vehicle fire, increasing the risk of injury.
What you should do
2. Check your VIN at nhtsa.gov/recalls.
3. Contact a dealer or FCA US customer service at 1-800-853-1403; the repair is free.
Where do I find my VIN, and what do I tell the dealer?
Your VIN is the 17-character code on the lower left of the windshield, on your registration and usually on your insurance card. Enter it at nhtsa.gov/recalls to see whether this recall is still open on your car. When you call the dealer, say you have an open safety recall and give them NHTSA campaign number 21V798000. More in how recalls work.
Affected vehicles (6)
Who to contact
RAM — official RAM recall lookup
Customer service: 1-800-853-1403
The bigger picture
- What RAM Electrical Recalls Involve Fires and Missing Dashboard Information? · all 12 RAM recalls in this area
Other RAM 3500 recalls
- Apr 9, 2026Ram Trucks Instrument Panel Display Failurehigh
- Feb 2, 2026Jeep And Ram Trailer Tow Module Failurehigh
- Dec 18, 2025Ram 3500, 5500 trucks: airbag and stability flawcritical
- Dec 1, 2025Ram 3500, 5500 Instrument Cluster Display Failurehigh
- Dec 1, 2025Ram 1500, 2500 and 3500 side airbag inflators may rupturehigh
- Nov 6, 2025Ram Trucks: Driver's Air Bag May Not Deployhigh
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.