Model year guide

2021 RAM 4500

Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2021 RAM 4500 is worth — from official NHTSA and EPA data. 4 on record.

2021 RAM 4500 at a glance

Safety recalls5

Included: that car's specs and build sheet, model-year recall campaigns and a fair price.

2021 RAM 4500 recalls 5

Steering:steering Control Module NHTSA Campaign #25V765000 · manufacturer #14C · 06/11/2025

Chrysler (FCA US, LLC) is recalling certain 2021-2022 Ram 1500, Ram 2500, Ram 3500, Ram 4500, and Ram 5500 vehicles. The steering column control module may cause the driver's side air bag not to deploy as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."

Fix: Dealers will replace the steering column control module, free of charge. Owner notification letters were mailed beginning December 11, 2025. Owners may contact Chrysler customer service at 800-853-1403. Chrysler's number for this recall is 14C. Vehicle Identification Numbers (VINs) involved in this…

Electrical System:wiring:relays/solenoids NHTSA Campaign #23V060000 · manufacturer #13A · 09/02/2023

Chrysler (FCA US, LLC) is recalling certain 2021-2023 Ram 2500, 3500, 3500 Cab Chassis, and 4500, 5500 Cab Chassis vehicles equipped with a Cummins 6.7L Turbo Diesel engine. An electrical short may occur in the heater grid relay with the ignition on or off.

Fix: Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will replace the relay, free of charge. This will be a Phased campaign. Phase 1 will include 2023 model year vehicles. FCA US will notify dealers on or about 3/23/2023 and begin notifying owners…

Electrical System:wiring:relays/solenoids NHTSA Campaign #21V798000 · manufacturer #Y76 · 14/10/2021

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.

Fix: 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,…

Wheels:lugs/nuts/bolts/studs NHTSA Campaign #21V398000 · manufacturer #Y26, Y36 · 27/05/2021

Chrysler (FCA US, LLC) is recalling certain 2012-2021 RAM 3500, 3500 Cab Chassis, 4500 Cab Chassis, and 5500 Cab Chassis vehicles. Incorrect information in the Service and Owner's Manuals may cause the flanged lug nuts to be over-tightened, which could result in a broken wheel stud and possible wheel separation.

Fix: Dealers will update the torque specification in the owner's manual and other published service documents. Dealers will also inspect the vehicle's wheel studs, replacing them if necessary, free of charge. Owner notification letters were mailed on November 30, 2021. Campaign Y36 owner notification le…

Electrical System NHTSA Campaign #21V163000 · manufacturer #Y08 · 11/03/2021

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.

Fix: 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…

Source: U.S. NHTSA, checked 4 Nov 2026. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.

Investigations & service bulletins

Manufacturer service bulletins 445

Technical notes the manufacturer sent to dealers about known issues and fixes. Useful to mention to a mechanic — they are not recalls and repairs may not be covered. Showing the 10 most recent of 445.

RADIATOR - ENGINE COOLING

Bulletin 114255 · Engine · Aug 2026

RADIATOR - ENGINE COOLING

Bulletin 114254 · Engine · Aug 2026

SENSOR - TURBOCHARGER SPEED

Bulletin 113742 · Electrical System, Engine · Jul 2026

SENSOR - TURBOCHARGER SPEED

Bulletin 113744 · Electrical System, Engine · Jul 2026

CORE – HEATER

Bulletin 113277 · Jul 2026

CORE – HEATER

Bulletin 113276 · Jul 2026

SWITCH – HEADLAMP

Bulletin 113070 · Electrical System, Structure · Jun 2026

SWITCH – HEADLAMP

Bulletin 113069 · Electrical System, Structure · Jun 2026

Backup Camera Poor Image Quality Inspection

Bulletin S2208000045 REV.D · Structure · Jun 2026

OUTLET - AIR CONDITIONING & HEATER

Bulletin 113065 · Jun 2026

Source: NHTSA Office of Defects Investigation, listed for the 4500. Model-year data, not specific to one car.

Canadian recalls 5

Transport Canada recall campaigns for the 2021 RAM 4500. Relevant if the car was first sold in, or imported from, Canada.

Label

Issue: On certain vehicles, the tire and loading information label does not list that there is no spare tire in both official languages. The label reads as "NONE" when it should read as "NONE / AUCUN". Canadian regulations require the information to be listed on the label in both English and French. Safety Risk: This error does not affect vehicle safety. Corrective Actions: Thi…

Transport Canada #2024548 · Aug 2024

Electrical

Issue: On certain trucks and chassis-cabs equipped with a 6.7 L Cummins diesel engine, the intake air heater relay could short circuit. This could happen even when the vehicle is parked, and the ignition switch is in the off position. Safety Risk: A short circuit could create a fire risk. Corrective Actions: FCA Canada will notify owners by mail and instruct you to take your ve…

Transport Canada #2023026 · Feb 2023

Electrical

Issue: On certain trucks or chassis-cabs equipped with a 6.7 L Cummins diesel engine, the intake air heater relay could short circuit. This could happen even when the vehicle is parked and the ignition switch is in the off position. Note: Trucks repaired under recall 2021-138 will also require this repair. Safety Risk: A short circuit could create a fire risk. Corrective Action…

Transport Canada #2021629 · Oct 2021

Wheels

Issue: On certain pickup and chassis-cab trucks, the owner's manual and service manual list the wrong torque specification for the wheel nuts. As a result, some trucks may have had the lug nuts over-tightened during servicing. This can damage the wheel studs and, over time, they could break. If this happens, a wheel could separate from the truck. Note: This recall only affects…

Transport Canada #2021336 · May 2021

Electrical

This recall was replaced by Transport Canada Recall No. 2021-629. Issue: On certain trucks or chassis-cabs equipped with a 6.7 L Cummins diesel engine, the intake air heater relay could short circuit. This could happen even when the vehicle is parked and the ignition switch is in the off position. Safety Risk: A short circuit could create a fire risk. Corrective Actions: Fiat C…

Transport Canada #2021138 · Mar 2021

Source: Transport Canada Motor Vehicle Safety Recalls Database.

2021 RAM 4500 trims & engines on record

Trims
Crew Cab DRW
Engines
6.7L 6-cyl 360 hp

2021 RAM 4500 vehicles on record

Other RAM 4500 model years

2021 RAM 4500 — frequently asked questions

Does the 2021 RAM 4500 have any safety recalls?

NHTSA lists 5 recall campaigns for the 2021 RAM 4500. Whether an individual car still needs a recall repair depends on its VIN — check it on NHTSA.gov or ask a franchised dealer. Recall repairs are done at no charge.

Sources: NHTSA (recalls, complaints, crash tests), U.S. EPA (fuel economy). Vehicle data only — CarLogs never shows owner information.