WenmarOpen by Wenmar Pro

Service bulletin TSB 20-05

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10179806
Published by NHTSA2020-09-17
Manufacturer's numberTSB 20-05
Manufacturer's date2020-07-21
NHTSA componentEXTERIOR LIGHTING

NHTSA's summary

On certain model year 2021 Hurricane & Windsport Motorhomes built on a 2020 Ford F53 Chassis, the fog light relay will buzz at a certain voltage range. The fix will be to install a harness to the fog light relay.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Lighting

Vehicles listed
THOR MOTOR COACH HURRICANE2021
THOR MOTOR COACH WINDSPORT2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.