Recall 23V406 affects 450 2022-2023 Tiffin Allegro Bus, Zephyr, and Phaeton motorhomes for chassis power loss. Repair is free at any franchised Tiffin dealer.
Tiffin is recalling 450 2022-2023 Allegro Bus, Zephyr, and Phaeton motorhomes built on PowerGlide chassis because an A/C compressor failure can trip a fuse and cut power to the chassis. Loss of chassis power can stall the engine and increase crash risk, and Tiffin dealers will complete the repair free of charge.
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What's wrong?
The chassis control module on the 2022-2023 Tiffin Allegro Bus, Zephyr, and Phaeton motorhomes built on PowerGlide chassis is part of the electrical system that routes power to chassis functions. In normal use, the module and its wiring help keep separate components powered as the motorhome runs, including the dash air conditioning system and ignition switch circuit.
On affected motorhomes, the dash air conditioning compressor and ignition switch power were wired through the same circuit block. If the compressor fails, a fuse trips. Because that circuit also feeds ignition switch power, the trip cuts power to the chassis instead of isolating the air conditioning fault. Tiffin traced the issue to lack of circuit protection during an air conditioning compressor failure.
There is no warning sign before failure. An owner would not have a specific light, sound, or driving symptom that reliably points to this wiring problem before the fuse trips.
Who's affected?
Spans Allegro Bus, Zephyr, and Phaeton motorhomes across the 2022-2023 model years, all tied to the chassis control module.
| 2023 Tiffin Allegro Bus | electrical system |
|---|---|
| 2023 Tiffin Zephyr | electrical system |
| 2022 Tiffin Phaeton | electrical system |
| 2022 Tiffin Zephyr | electrical system |
| 2022 Tiffin Allegro Bus | electrical system |
| 2023 Tiffin Phaeton | electrical system |
| Units affected | 450 |
| Field incidents | NHTSA has logged 1 field incident to date. |
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?
Loss of power to the chassis can stall the engine and increase the risk of a crash. There is no warning sign before failure, so treat this as a repair to schedule soon if your VIN is included. Repair is free at any franchised Tiffin dealer.
What should I do?
- Check your VIN to confirm your 2022-2023 Tiffin Allegro Bus, Zephyr, or Phaeton is included in this recall.
- Contact your nearest franchised Tiffin dealer to schedule the free chassis-controller inspection and harness-and-inline-fuse repair that keeps an A/C compressor fuse trip from cutting power to the chassis.
- Bring the recall notice if Tiffin mailed one. If not, reference recall number 23V406 and Tiffin recall TIF-131 when you call.
- Drive cautiously until the repair is complete, and pull over safely if the engine stalls or the chassis loses power.
What happens at the repair
At the dealer, a Tiffin technician inspects the chassis controller and installs a harness with an inline fuse when the inspection shows it is needed. The recall repair, including parts and labor, is free. Out-of-pocket repairs already paid are handled through Tiffin's PowerGlide chassis warranty, not through a separate reimbursement program. Ask the service desk how that warranty coverage applies if you have prior repair paperwork.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| June 5, 2023 | NHTSA published the recall |
|---|---|
| June 20, 2023 | Owner notification mailed |
| August 4, 2023 | Dealer notification began |
| August 4, 2023 | Dealer notification ended |
| August 4, 2023 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 23V406?
Recall 23V406 covers 450 2022-2023 Tiffin Allegro Bus, Zephyr, and Phaeton motorhomes built on PowerGlide chassis. An a/c compressor failure can trip a fuse, cutting power to the chassis. Tiffin dealers will inspect the chassis controller and install a harness and inline fuse for free when needed.
What should I do if my 2022-2023 Tiffin Allegro Bus, Zephyr, or Phaeton is on this recall?
Check your VIN to confirm your specific motorhome is included in recall 23V406. If it is, contact a franchised Tiffin dealer to schedule the chassis controller inspection. Reference recall number 23V406 and Tiffin recall number TIF-131 when you call. The dealer repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost. Tiffin dealers will inspect the chassis controller and install the needed harness and inline fuse free of charge, including parts and labor.
What is the safety risk in recall 23V406?
The safety risk is engine stall from loss of chassis power. Tiffin says an a/c compressor failure can trip a fuse and cut power to the chassis, which increases crash risk. Confirm your VIN, then schedule the free dealer inspection and repair.
When were owners notified about recall 23V406?
Tiffin mailed owner notification letters on June 20, 2023. If you bought the motorhome used or never received a letter, check your VIN to confirm whether your 2022-2023 Allegro Bus, Zephyr, or Phaeton is included, then call a Tiffin dealer with recall number 23V406.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/23V406000 |
|---|---|
| Tiffin customer service | 1-256-356-8661 |
| NHTSA recall # | 23V406 |
| NHTSA recall # (full) | 23V406000 |
Source documents
-
Download Quarterly Report (PDF) - Download Recall Document (PDF) (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (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 →