Owners of certain late-model Tiffin motorhomes are facing a straightforward but serious safety problem: a stray screw left behind during assembly may have punctured the fuel tank, creating the risk of a fuel leak or fire. The National Highway Traffic Safety Administration has opened recall campaign 26V338 covering 2025-2026 GT1 models as well as 2026 GH1 and GH2 models. Tiffin Motorhomes, Inc. will inspect affected units and replace the fuel tank if damage is found.
Why a stray screw in Tiffin motorhomes demands attention right now
The defect is blunt in its mechanics: during manufacturing, a screw ended up where it should not have been and may have pierced the fuel tank. A punctured tank can leak fuel in any driving or parking condition, and fuel leaks in large motorhomes carry an elevated fire risk because of the volume of gasoline or diesel stored onboard. The Part 573 report filed with NHTSA identifies the hazard as a fuel leak and fire risk, leaving little ambiguity about what is at stake for owners.
The affected vehicle lines span two model years and three distinct models. The 2025-2026 GT1, 2026 GH1, and 2026 GH2 are all motorhomes produced at Tiffin’s manufacturing facility. That the defect touches multiple model designations across two production years suggests the issue was not confined to a single assembly line or a single day’s output. Instead, whatever process allowed a loose fastener to contact the fuel tank persisted long enough to affect more than one product line.
One working theory is that the misplaced-screw defect traces back to a temporary change in workstation tooling or fastener bins at Tiffin’s plant. If the root cause was a short-lived process disruption, the fix should be verifiable: zero similar fuel-tank recalls in subsequent model year filings would confirm the correction held. But if the problem reflects a deeper gap in quality control during tank installation, the pattern could recur. Tiffin has not publicly detailed the manufacturing sequence that led to the defect, so the scope of the process failure is still an open question.
Federal recall record and Tiffin’s planned fix
Campaign 26V338 is listed in NHTSA’s public recall database, where owners can look up their vehicle identification number and confirm whether their motorhome is included. The campaign entry also provides access to associated documents, including Tiffin’s Part 573 filing and, once available, owner notification letters and dealer service instructions.
The remedy outlined in the recall filing involves two steps: inspection and replacement. Dealers will examine the fuel tank for evidence of a screw puncture, such as visible damage, seepage, or staining. If damage is confirmed, the tank will be replaced. Tiffin is responsible for covering the cost of both the inspection and any necessary parts and labor, consistent with federal recall obligations under the National Traffic and Motor Vehicle Safety Act.
The defect description in the federal filing is direct. It states that a screw may have punctured the fuel tank during manufacturing. That language signals a known production-side failure rather than a wear-and-tear issue or a design flaw that might emerge over time. For owners, this distinction matters: the problem either exists in their vehicle from the factory or it does not, and a dealer inspection should be able to determine the answer quickly.
Because the underlying issue is a physical puncture, the inspection itself should be relatively straightforward. Technicians will be looking for specific, localized damage rather than a subtle or intermittent malfunction. That clarity can help shorten service visits and reduce the chance of ambiguous findings that leave owners uncertain about whether their coach is truly safe.
What Tiffin owners still do not know
Several pieces of information that would help affected owners assess their personal risk are not yet available in the public recall record. The exact number of vehicles produced under the affected model and year combinations has not been disclosed in the campaign summary. Without a production count or VIN range, owners cannot gauge how many coaches share the defect or how widespread the assembly error was.
Equally absent is any indication of whether fuel leaks or fires have actually occurred. NHTSA recall filings sometimes note prior incidents or complaints that triggered the investigation, but the available summary for 26V338 does not include that detail. The absence of reported incidents does not mean none have occurred; it simply means the public record does not confirm any at this point.
The owner notification letter, which would spell out the timeline for scheduling repairs and the specific dealer instructions for the inspection, has not yet appeared among the associated documents on the NHTSA recall page. Owners waiting for that letter should not delay: they can check their VIN on NHTSA’s recall lookup tool and contact a Tiffin dealer directly to ask about inspection scheduling.
The recall also raises a broader question about fastener control in motorhome manufacturing. Motorhomes are assembled with thousands of screws, bolts, and clips across dozens of subsystems. A single misplaced fastener reaching a fuel tank suggests that either the tank was exposed during a stage of assembly where loose hardware was present, or that a fastener intended for a nearby component missed its target. Either scenario points to a gap in the containment of loose parts near safety-critical components.
For owners, this is not just an abstract manufacturing concern. A fuel leak can develop gradually, and motorhomes often sit for extended periods between trips. That combination can mask early signs of a problem. Owners who notice fuel odors around the coach, unexplained drops in fuel level, or visible wet spots under the tank area should treat those as urgent warning signs, even if their VIN has not yet been flagged in the recall database.
What affected owners should do now
For owners of the 2025-2026 GT1, 2026 GH1, or 2026 GH2, the first step is simple. Visit the NHTSA recall lookup page, enter the vehicle’s 17-character VIN, and see whether campaign 26V338 appears. If it does, contact a Tiffin dealer or authorized service center to schedule the inspection as soon as possible. Because the defect involves the fuel system, owners should avoid delaying repairs, even if the motorhome appears to be operating normally.
Owners whose vehicles are included in the recall should also watch for the official notification letter from Tiffin. That letter will outline any interim safety recommendations, such as parking the motorhome outdoors away from structures or avoiding long-distance trips until the inspection is complete. While the letter is pending, dealers should still be able to confirm participation in the campaign and explain how they plan to handle parts availability and scheduling.
If an owner believes their coach is experiencing fuel-related issues but the VIN does not show an open recall, they can still file a safety complaint with NHTSA. Those complaints help regulators spot patterns and determine whether the scope of an existing recall needs to be expanded. They also create a paper trail if future investigations reveal that additional model years or configurations share the same underlying problem.
Ultimately, the screw-punctured fuel tank issue in these Tiffin motorhomes illustrates how a small lapse on the assembly line can create an outsized safety risk on the road. Until inspections confirm that each affected coach is free of damage-or receives a replacement tank-owners are justified in treating this recall as a priority item rather than a routine service bulletin. A short visit to a dealer now is far preferable to discovering a fuel leak the hard way, whether in a campground, at a fuel station, or while driving with family on board.
More from Morning Overview
*This article was researched with the help of AI, with human editors creating the final content.
