Recall 26V446 covers 448 2026-2027 Grand Design Lineage RVs for an overheating fan circuit board. Free repair at franchised Grand Design dealers once available.
Grand Design is recalling 448 2026-2027 Lineage recreational vehicles because the printed circuit board in certain MaxxAir N-Series Maxxfan rooftop ventilation fans can fail and overheat. An overheated board increases the risk of a fire, and the dealer repair will be free once Grand Design makes it available.
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What's wrong?
The MaxxAir N-Series Maxxfan on affected 2026-2027 Grand Design Lineage recreational vehicles is the rooftop ventilation fan that moves air through the coach. A printed circuit board inside the fan controls the electrical work that lets the fan run during normal operation. That board has to carry current without overheating.
On these Lineage vehicles, the printed circuit board can fail during certain fan operations and overheat. The problem is tied to field-effect transistors, which are small electronic switches on the board. Their capacitance is not enough for the current flow, so the device fails and heat builds up on the board.
Smoke is the warning sign. If smoke is present near the rooftop fan, the circuit board is experiencing a thermal event and the fan needs dealer attention.
Who's affected?
The same Lineage RV appears under electrical-system and recreational vehicle/trailer equipment categories for both model years.
| 2026 Grand Design Lineage | electrical system |
|---|---|
| 2027 Grand Design Lineage | Recreational vehicle/trailer |
| 2026 Grand Design Lineage | Recreational vehicle/trailer |
| 2027 Grand Design Lineage | electrical system |
| Units affected | 448 |
| 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 RV is included in this recall.
What's the safety risk?
An overheated printed circuit board increases the risk of a fire. Smoke is the warning sign of a thermal event. If smoke appears, stop using the vehicle and call the dealer before further use. Repair will be free at any franchised Grand Design dealer once available.
What should I do?
- Check your VIN to confirm your 2026-2027 Grand Design Lineage is included in this recall.
- Watch for Grand Design's owner letter expected July 27, 2026; it explains the free dealer inspection and printed-circuit-board repair for the overheating MaxxAir fan circuit board.
- Contact a franchised Grand Design dealer after the repair opens to schedule the free inspection and repair.
- Bring the recall notice if Grand Design has mailed one. If not, reference recall number 26V446 when you call.
- Call Grand Design customer service at 1-574-825-9679 with questions about fan use before the repair is complete.
What happens at the repair
The final dealer repair has not opened yet. Once Grand Design opens it, a Grand Design technician will inspect the MaxxAir N-Series Maxxfan rooftop ventilation fan and replace the printed circuit board when needed. Parts and labor are free under the recall. Grand Design used its general reimbursement plan on file, so owners who already paid for a related printed circuit board repair should ask customer service or the service desk how to submit repair documentation for review.
| Reimbursement | Reimbursement available |
|---|
Timeline
| July 10, 2026 | NHTSA published the recall |
|---|---|
| July 20, 2026 | Dealer notification began |
| July 24, 2026 | Dealer notification ended |
Frequently asked questions
What is recall 26V446?
Recall 26V446 covers 448 2026-2027 Grand Design Lineage recreational vehicles with certain MaxxAir N-Series Maxxfan rooftop ventilation fans. The printed circuit board can fail during certain operations and overheat, increasing fire risk. Grand Design dealers will inspect and replace the board if needed for free.
What should I do if my 2026-2027 Grand Design Lineage is on this recall?
Check your VIN to confirm your specific RV is included in recall 26V446. If it is, contact a franchised Grand Design dealer to schedule the fan circuit-board inspection. The dealer will replace the printed circuit board if needed, free of charge.
Is the recall repair free?
Yes. Federal recall law requires manufacturers to perform recall repairs at no cost. Grand Design dealers will inspect the MaxxAir N-Series Maxxfan printed circuit board and replace it if needed, free of charge.
What is the safety risk?
The safety risk is fire. In recall 26V446, the printed circuit board in the rooftop ventilation fan can fail during certain operations and overheat. An overheated printed circuit board increases the risk of a fire.
When will Grand Design notify owners?
Grand Design expects to mail owner notification letters on July 27, 2026. You do not need to wait for the letter to act. Check your VIN, then contact a franchised Grand Design dealer or call Grand Design customer service at 1-574-825-9679.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/26V446000 |
|---|---|
| Grand Design customer service | 1-574-825-9679 |
| NHTSA recall # | 26V446 |
| NHTSA recall # (full) | 26V446000 |
Source documents
-
Download Recall Acknowledgement (PDF) - Download Recall Report (PDF)
- Download Owner Notice (PDF)
- Download Owner Notification Letter (PDF)
- Download Recall Investigation Document (PDF) (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on July 26, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →