Ram 2500, Ram 3500, Ram 4500, Ram 5500, model year 2021. Filed by Chrysler (FCA US, LLC) and reported to NHTSA on 11 March 2021. 19,214 vehicles potentially affected.
What the notice says 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.
Is your vehicle included? Check with your VIN at NHTSA, or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on.
Ram's own number for this recall: Y08. That is the number on the owner letter and on the dealer paperwork. 21V163 is the number NHTSA gave the same campaign, and the number this page is filed under. They are one recall, written two ways.
What owners ask about this recall
- Which vehicles does recall 21V163 cover?
- Ram 2500, Ram 3500, Ram 4500, Ram 5500, model year 2021.
- What is wrong with them?
- 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.
- What can happen if it is not put right?
- A vehicle fire increases the risk of injury.
- Is there a fix yet?
- Yes, and it is free. 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.
- What should I do now?
- Check your own vehicle by its VIN with NHTSA, which is the record to act on. Ram calls this recall Y08, which is the number on the owner letter and the dealer paperwork.
Answered from the register this site holds. NHTSA is the record to act on.
What the authority says can happen if this is not fixed: “A vehicle fire increases the risk of injury.”
affected
in the notice
caught
| Campaign | 21V163 |
|---|---|
| Filed by | Chrysler (FCA US, LLC) |
| System at fault | Electrical System |
| Reported to NHTSA | 11 March 2021 |
| Model years | 2021-2021 |
| Vehicles named | RAM 2500, RAM 3500, RAM 4500, RAM 5500 |
What the notice says today
The consequence
A vehicle fire increases the risk of injury.
The 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.
What it said before
This campaign is in the register but not yet in the dated wording archive, so we cannot yet say whether its text has moved. It enters the archive on the next pass.
This is one of 1,836 notices in the record whose component field names electrical system. Across that group the median wait before owners were written to was 41 days.
The models named here, across their whole recall history
- Ram 2500 recalls: 64 US campaigns
- Ram 3500 recalls: 61 US campaigns
- Ram 4500 recalls: 40 US campaigns
- Ram 5500 recalls: 41 US campaigns
The recall record and its wording are published by the US National Highway Traffic Safety Administration and are US Government public domain. The dated archive, the comparison and any before-and-after above are CarsMultiverse. How fresh every engine behind this page is, is public on the status page. To check a specific vehicle, use NHTSA’s own VIN lookup.
Other Ram notices we hold
- 26V561: 2025-2026 Chrysler Voyager, Chrysler Pacifica, and 2026 Chrysler Voyager Plug-In Hybrid Electric (PHEV)
- 26V560: 2025-2026 Ram 1500
- 26V529: 2026 Jeep Grand Cherokee and Grand Cherokee L
- 26V528: 2021-2023 Dodge Durango
- 26V510: 2023-2025 Dodge Hornet and 2023-2026 Alfa Romeo Tonale
- 26V495: 2019-2026 Ram 1500
- 26V456: 2026 Jeep Gladiator and Jeep Wrangler
- 26V421: 2026 Ram 1500
All 601 Ram campaigns we hold · Every manufacturer in the record
The fingerprint of this notice
We take a SHA-256 of each of the three blocks of text the authority publishes and keep the first eight characters. As we last read campaign 21V163 on 23 August 2026, they were:
- Defect summary
cbd5f7e3 - Consequence
107f5372 - Remedy
a048fa7f
We first read this notice on 21 August 2026. It has not moved since. If it ever does, these characters will not match, and the change will be dated here.
The wording we hold for 21V163 · how the whole register is watched
This notice names one vehicle among several registers that have written about it. Every notice this site holds for the Ram 2500, in all seven, is kept on that vehicle's own page, with the newest in each.
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Owners of these cars
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