Recall 20V474 affects 156 2021 Winnebago Revel motorhomes for an auxiliary alternator belt that can detach. Repair is free at any franchised Winnebago dealer.
Winnebago is recalling 156 2021 Revel motorhomes because the auxiliary alternator belt can wear and detach. If the belt comes off, the engine serpentine belt can disengage too, causing immediate loss of power steering control and increasing crash risk; Winnebago dealers will complete the free repair.
Does this recall apply to your specific vehicle?
The official, free per-VIN recall check is run by NHTSA. Enter your VIN and we'll forward you directly — and add you to a free watchlist so you hear about new recalls for your vehicle.
Check my VIN at NHTSARecallNotify doesn't check your VIN — NHTSA's official tool does. We use your email only to alert you to new recalls.
Watch this vehicle for recalls
Add it to your free watchlist and we will alert you as new federal recalls are posted for your year, make and model. New-recall alerts are rolling out now.
You are on the watchlist.
We will email you as new federal recalls are posted for your vehicle.
What's wrong?
The auxiliary alternator belt on the 2021 Winnebago Revel is the drive belt for the added alternator kit. That alternator helps produce electrical power for the motorhome's auxiliary systems, and the belt has to run straight across its pulleys to keep the alternator turning without rubbing or walking out of place.
On affected Revel motorhomes, the pulleys tied to the auxiliary alternator were installed out of alignment. When the pulleys are not lined up, the belt does not track cleanly. It can wear against the pulley edges, loosen, and come off the drive path. Once the belt detaches, the auxiliary alternator stops being driven, and the damaged belt needs inspection, replacement if damaged, and proper alignment.
Before the belt comes off, owners can hear it sounding loose. The warning sign is a flapping sound from the belt area while the motorhome is running.
Who's affected?
The common thread is the Nations auxiliary alternator kit used in these Revel motorhomes.
| 2021 Winnebago Revel | electrical system |
|---|---|
| Units affected | 156 |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific motorhome is included.
What's the safety risk?
A disengaged auxiliary alternator belt can pull the engine serpentine belt out of position, causing immediate loss of power steering control and increasing crash risk. If you hear a loose belt or flapping sound, pull over safely and arrange service. Repair is free at any franchised Winnebago dealer.
What should I do?
- Check your VIN to confirm your 2021 Winnebago Revel is included in this recall.
- Contact a franchised Winnebago dealer to schedule the free auxiliary-alternator belt pulley inspection and alignment, which fixes the belt wear and detachment risk tied to loss of power steering control.
- Bring any Winnebago recall notice, and reference recall number 20V474 when you call or arrive.
- Drive only as needed until the dealer inspects the belt pulleys, and leave extra room because loss of power steering control is the recall risk.
What happens at the repair
At the dealer, a Winnebago technician inspects the auxiliary alternator belt pulleys and aligns them properly so the belt tracks as intended. The inspection and alignment work are free under recall 20V474. Winnebago has a general reimbursement plan on file for owners who already paid for this related repair. Bring documentation for the prior repair and ask Winnebago customer service or the dealer service desk how to submit the claim.
| Reimbursement | Reimbursement available |
|---|
Timeline
| August 12, 2020 | NHTSA published the recall |
|---|---|
| September 21, 2020 | Owner notification mailed |
| October 9, 2020 | Dealer notification began |
| October 9, 2020 | Dealer notification ended |
| October 9, 2020 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 20V474?
Recall 20V474 covers 156 2021 Winnebago Revel motorhomes with an auxiliary alternator belt that can wear and detach. In NHTSA campaign 20V474, Winnebago says a detached belt can also disengage the engine serpentine belt, causing immediate loss of power steering control and increasing crash risk.
What should I do if my 2021 Winnebago Revel is on this recall?
Check your VIN to confirm your specific motorhome is included in recall 20V474. If it is, contact a franchised Winnebago dealer to coordinate inspection and proper alignment of the belt pulleys. Reference recall number 20V474 when you call. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires manufacturers to repair safety defects at no cost, and Winnebago dealers will coordinate the inspection and proper belt-pulley alignment free of charge for vehicles included in recall 20V474.
What is the safety risk?
The safety risk is immediate loss of power steering control. In NHTSA campaign 20V474, Winnebago reports that if the auxiliary alternator belt disengages, the engine serpentine belt can also disengage, increasing the risk of a crash.
What if I bought my Winnebago Revel used?
The free recall repair still applies. Federal recall law follows the vehicle, not the first owner. Check your VIN to confirm whether your specific 2021 Winnebago Revel is included, then reference recall number 20V474 when you contact a Winnebago dealer.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/20V474000 |
|---|---|
| Winnebago customer service | 1-800-537-1885 |
| NHTSA recall # | 20V474 |
| NHTSA recall # (full) | 20V474000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Recall Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 24, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →