Key Takeaway
Relay May Short and Cause Fire by Chrysler (FCA US LLC) was recalled on March 12, 2021. What to do: 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...
Relay May Short and Cause Fire
Description
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.
Injuries / Consequence
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 This recall has been superseded by recall number 21V-798.
Products Affected
Vehicle
VehiclesCompany Information
Chrysler (FCA US LLC)
Unknown location
View all 480 recalls by Chrysler (FCA US LLC) →Related Recalls
Inoperative Trailer Lighting and Trailer Brake Failure
February 2, 2026
Inoperative Trailer Lighting and Trailer Brake Failure
February 2, 2026
Rear Coil Springs May Detach
January 29, 2026
Disabled Driver's Side Air Bag and Seat Belt Pretensioner/FMVSS 126 & 208
December 18, 2025
Disabled Driver's Side Air Bag and Seat Belt Pretensioner/FMVSS 126 & 208
December 18, 2025
Brake Pedal Failure
December 9, 2025
Frequently Asked Questions
Is this recall still active?
Check the status badge at the top of this page. "Ongoing" means the recall is still active and you should follow the remedy instructions. "Completed" or "Terminated" means the recall process has concluded, though the safety issue remains relevant for any unrepaired products.
How do I check if my product is affected?
Compare the model number, lot code, serial number, or date range listed in the recall notice with the information on your product's label or packaging. For vehicles, check your VIN at NHTSA.gov/Recalls.
What remedy is available for this recall?
The listed remedy for this recall is: 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...
Where can I find the original recall notice?
This recall was issued by NHTSA. You can view the original notice using the link provided above.