Recall 23V643 affects 1,188 2016-2024 Tiffin Allegro Bus and Zephyr motorhomes for an ungrounded induction cooktop. Repair is free at any franchised Tiffin dealer.
Tiffin is recalling 1,188 2016-2024 Allegro Bus and Zephyr motorhomes because a grounding defect in the 240-Volt induction cooktop can create an electrical shock hazard if wires short-circuit. An electrical shock can increase the risk of injury, and Tiffin dealers will complete the recall repair free of charge.
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What's wrong?
The 240V induction cooktop in the 2016-2024 Tiffin Allegro Bus and Zephyr motorhomes uses household-style electrical power to heat cookware through the cooktop surface. Its wiring runs through a metal junction box, which is the enclosure where the cooktop wiring connects to the motorhome. A ground wire gives stray electrical current a safe path away from metal parts.
On affected motorhomes, that metal junction box was built without the required ground. If the cooktop wiring short-circuits, electrical current can reach the metal box instead of being carried safely to ground. That creates an electrical shock hazard for someone touching the cooktop area or related metal parts.
There is no warning sign before failure. The cooktop can look and operate normally, so an owner is not expected to hear, smell, or see a clear signal that the junction box is ungrounded.
Who's affected?
Spans the Allegro Bus and Zephyr lines across the 2016-2024 model years, all involving the induction cooktop.
| 2017 Tiffin Allegro Bus | Oven/stove/cooktop |
|---|---|
| 2017 Tiffin Zephyr | Oven/stove/cooktop |
| 2018 Tiffin Zephyr | Oven/stove/cooktop |
| 2019 Tiffin Zephyr | Oven/stove/cooktop |
| 2020 Tiffin Zephyr | Oven/stove/cooktop |
| 2021 Tiffin Zephyr | Oven/stove/cooktop |
| 2022 Tiffin Zephyr | Oven/stove/cooktop |
| 2018 Tiffin Allegro Bus | Oven/stove/cooktop |
| 2019 Tiffin Allegro Bus | Oven/stove/cooktop |
| 2020 Tiffin Allegro Bus | Oven/stove/cooktop |
| 2021 Tiffin Allegro Bus | Oven/stove/cooktop |
| 2022 Tiffin Allegro Bus | Oven/stove/cooktop |
| 2023 Tiffin Allegro Bus | Oven/stove/cooktop |
| 2023 Tiffin Zephyr | Oven/stove/cooktop |
| 2024 Tiffin Zephyr | Oven/stove/cooktop |
| 2024 Tiffin Allegro Bus | Oven/stove/cooktop |
| 2016 Tiffin Allegro Bus | Oven/stove/cooktop |
| Units affected | 1,188 |
| 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 your specific motorhome is included.
What's the safety risk?
An ungrounded metal junction box creates an electrical shock risk and increases the risk of injury. There is no warning sign before contact, so avoid touching electrical components and schedule the recall repair. Repair is free at any franchised Tiffin dealer.
What should I do?
- Check your VIN to confirm your 2016-2024 Tiffin Allegro Bus or Zephyr is included in this recall.
- Contact a franchised Tiffin dealer to schedule the free ground installation for the metal junction box, which fixes the ungrounded 240-Volt induction cooktop hazard.
- Bring the recall notice if you have it, and reference recall number 23V643 (Tiffin recall TIF-133) when you call.
- Avoid using the induction cooktop until the dealer completes the ground repair.
- Call Tiffin customer service at 1-256-356-8661 with questions about scheduling or repair status.
What happens at the repair
At the dealer, a Tiffin technician installs a ground for the metal junction box tied to the induction cooktop circuit. The recall repair is free, with parts and labor covered. If you paid for this repair before the recall was issued, submit the repair invoice to Tiffin Motorhomes for reimbursement. Keep a copy of the invoice and any service paperwork for your records.
| Reimbursement | Reimbursement available |
|---|
Timeline
| September 20, 2023 | NHTSA published the recall |
|---|---|
| October 20, 2023 | Owner notification mailed |
| November 17, 2023 | Dealer notification began |
| November 17, 2023 | Dealer notification ended |
| November 17, 2023 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 23V643?
Recall 23V643 covers 1,188 2016-2024 Tiffin Allegro Bus and Zephyr motorhomes with a 240-Volt induction cooktop grounding defect. If the wires short-circuit, the condition can create an electrical shock hazard and increase the risk of injury.
What should I do if my 2016-2024 Tiffin Allegro Bus or Zephyr is on this recall?
Check your VIN to confirm your specific motorhome is included in recall 23V643. If it is, contact a franchised Tiffin dealer to schedule the ground installation for the metal junction box. Reference recall number 23V643 or Tiffin recall TIF-133 when you call.
Is the recall repair free?
Yes. Federal recall law requires manufacturers to repair the defect at no cost, and Tiffin dealers will install a ground for the metal junction box free of charge. Parts and labor are covered under the recall.
Is it safe to use the induction cooktop before the recall repair?
Treat the cooktop as a shock hazard until the ground repair is complete. The recall filing says the 240-Volt induction cooktop grounding defect can create an electrical shock hazard if the wires short-circuit. Ask the dealer for guidance before using the appliance.
When did Tiffin notify owners about recall 23V643?
Tiffin mailed owner notification letters on October 20, 2023. If you bought the motorhome used or never received a letter, check your VIN to confirm whether your specific Allegro Bus or Zephyr is included, then call Tiffin customer service at 1-256-356-8661.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/23V643000 |
|---|---|
| Tiffin customer service | 1-256-356-8661 |
| NHTSA recall # | 23V643 |
| NHTSA recall # (full) | 23V643000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Investigation Document (PDF) (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 →