# Service bulletin TSB 25\-04

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11023150
- Published by NHTSA: 2025\-09\-16
- Manufacturer's number: TSB 25\-04
- Manufacturer's date: 2025\-09\-16
- Campaign id or software version: RC000330
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

TriMark manufactured and sold to PTL, a complete RV door hardware system. PTL Engineering has reported that several Motor Coach Manufacturers have encountered issues with motorhome lockouts affecting coach owners on sold units. It was found that the pivot arm on the outside handle may pass underneath the release arm of the inside handle, due to multiple potential root causes preventing the door from opening from the outside handle. However, the interior handle is still operational from inside of the motor home.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11023150-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11023150-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Vehicles listed

- 2025 THOR MOTOR COACH ARIA
- 2025 THOR MOTOR COACH RIVIERA

JSON: [/v1/bulletins/11023150](/v1/bulletins/11023150)

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