Recall 24V827 affects 5,128 2025 Rivian R1S and R 1 T vehicles because Car Costume can deactivate exterior lights. Rivian released a free OTA update.
Rivian is recalling 5,128 2025 R1S and R 1 T vehicles under recall 24V827 because software version 2024.39.30 can shut off certain exterior lights when the Car Costume feature is activated. Deactivated exterior lighting makes the vehicle harder for other drivers to see and increases crash risk; Rivian will correct the software free of charge.
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What's wrong?
The software update on the 2025 Rivian R1S and R 1 T controls vehicle features, including the Car Costume feature and the exterior lighting behavior tied to vehicle operation. Exterior lights are the lamps other road users rely on to see the vehicle and understand its position. The software has to keep those lights available once the vehicle is in the Ready state.
In affected vehicles, software version 2024.39.30 let the Car Costume feature interfere with certain exterior lights after the feature was activated. When that happened, those lights did not turn on during vehicle operation. Rivian traced the issue to the feature behavior in the OTA update and fixed the condition by remotely disabling the affected feature, then issuing corrected software version 2024.39.31.
The warning sign was visible lighting behavior. Some owners noticed that their exterior lighting was not illuminated, which is the sign to take seriously before driving at night or in low visibility.
Who's affected?
Both listed models share the same software update across electrical system software and exterior lighting.
| 2025 Rivian R1S | electrical system software |
|---|---|
| 2025 Rivian R1S | Exterior lighting |
| 2025 Rivian R 1 T | electrical system software |
| 2025 Rivian R 1 T | Exterior lighting |
| Units affected | 5,128 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether this recall applies to your specific vehicle.
What's the safety risk?
Exterior lighting that turns off makes the vehicle harder for other drivers to see and increases the risk of a crash. If you notice the exterior lights are not illuminated, avoid night or poor visibility trips and get the free OTA software update soon. Repair is free at any franchised Rivian dealer.
What should I do?
- Check your VIN to confirm your 2025 Rivian R1S or R 1 T is included in this recall.
- Install Rivian's free over-the-air software update that keeps exterior lights active when the Car Costume feature is used.
- Avoid using the Car Costume feature until the update is installed and the exterior lights work normally.
- Call Rivian customer service at 1-888-748-4261 if the update is not available on your vehicle, and reference recall number 24V827 when you call.
What happens at the repair
Rivian has released the recall fix as a free over-the-air software update, so the repair does not require a dealer visit unless Rivian directs you there. The update corrects the software issue that can keep certain exterior lights from turning on when Car Costume is active. If you already paid out of pocket for a related repair, Rivian's reimbursement process asks customers to send the original receipt or other proof of payment so the company can confirm the expense.
| Reimbursement | Reimbursement available |
|---|
Timeline
| November 1, 2024 | NHTSA published the recall |
|---|---|
| December 18, 2024 | Owner notification mailed |
| December 18, 2024 | Dealer notification began |
| December 18, 2024 | Dealer notification ended |
| December 18, 2024 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| December 18, 2024 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 24V827?
Recall 24V827 covers 5,128 2025 Rivian R1S and R 1 T vehicles with software version 2024.39.30. When Car Costume is activated, that software can prevent certain exterior lights from turning on. Rivian released a free over-the-air software update.
What should I do if my 2025 Rivian R1S or R 1 T is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 24V827. If it is, confirm the free Rivian over-the-air software update has installed. Contact Rivian customer service at 1-888-748-4261 if the update is missing or the vehicle still shows the affected software version.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to provide the recall remedy at no cost, and Rivian released the over-the-air software update free of charge. The update addresses the exterior-lighting software issue tied to recall 24V827.
What is the safety risk?
The safety risk is reduced visibility to other drivers. If certain exterior lights stay off when Car Costume is activated, other drivers have less ability to see the vehicle, increasing the risk of a crash. The free software update fixes that lighting-control issue.
When did Rivian notify owners?
Rivian mailed owner notification letters on December 18, 2024. The letter explains recall 24V827 and the free over-the-air software update. If you bought the vehicle used or never received a letter, check your VIN and call Rivian with recall number FSAM-1552.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/24V827000 |
|---|---|
| Rivian customer service | 1-888-748-4261 |
| NHTSA recall # | 24V827 |
| NHTSA recall # (full) | 24V827000 |
Source documents
-
Download Quarterly Report (PDF) - Download Owner Notification Letter (PDF)
- Download Recall Acknowledgement (PDF)
- Download Recall Report (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →