The Recall Desk
SevereNHTSA·21V798000·Announced 2021-10-14

RAM Pickup and Cab Chassis Trucks: Intake Heater Relay Fire Risk

Certain 2021-2022 RAM pickup and cab chassis trucks with Cummins diesel engines may experience electrical shorts in the Intake Heater Grid Relay, causing a fire hazard. Owners should park outside until dealers inspect and repair the defect.

NHTSA safety advisory

Park this vehicle outside

NHTSA advises parking it away from buildings and other vehicles until the repair is done — the risk exists even when the vehicle is switched off.

This is the agency’s own advisory, not our assessment. Contact the manufacturer or a dealer, and see the official NHTSA notice for the current guidance.

What this means for you

Illness, injury, or structural failure has been reported. Stop using the product immediately and contact the manufacturer for a refund or repair.

Our severity reasoning: This is a structural vehicle defect involving an electrical relay that can cause vehicle fires. The rubric designates structural vehicle defects as Severe (score 4), and the hazard is not theoretical—it is a known, specific defect with documented potential for serious injury.

Plain-English summary

Chrysler (FCA US, LLC) is recalling certain 2021-2022 RAM pickup trucks and cab chassis vehicles (Models 2500, 3500, 4500, 5500) equipped with Cummins 6.7L Turbo Diesel engines. Approximately 131,177 vehicles are affected.

An electrical short in the Solid State Intake Heater Grid Relay may cause a vehicle fire whether the ignition is on or off. Vehicle fires increase the risk of injury.

As a precaution, owners are instructed to park these vehicles outside buildings and structures, and away from other vehicles, until repairs are completed. Dealers will inspect the Relay and replace it if necessary. If related recall FCA Y08 (NHTSA 21V-163) remains open, insulating material will be applied to the Relay after inspection.

Owner notification letters were mailed on November 10, 2021. Owners can contact FCA US at 1-800-853-1403 or the NHTSA Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153).

The recalled product

Product
RAM 2500, 4500, 3500, 5500
Brand
RAM
Manufacturer
Chrysler (FCA US, LLC)
Category
Vehicle — Pickup Truck / Cab Chassis
Hazard
Affected units
131,177

Is your product affected?

Check your packaging against the codes below. If any of them match, the product is part of this recall.

Model numbers (4)

  • 2500
  • 4500
  • 3500
  • 5500

Distribution

Distributed nationwide across the United States.

Related recalls

Same brand · RAM

Same manufacturer · Chrysler (FCA US, LLC)

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Same hazard · fire

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