The defect
Prevost Car (US) Inc. (Prevost) is recalling certain 2018-2023 H3-45 motor coaches and H3-45 VIP motorhomes, and 2019 H3-41 motor coaches. The Automatic Fire Suppression System (AFSS) optical fire sensor positioned in the engine compartment's lower region may corrode and malfunction. In this event, the AFSS may give a false warning to the driver, command an unwarranted engine shutdown, and release a chemical fire extinguishing agent in the engine compartment.
The risk
The activation of the Automatic Fire Suppression System can cause a sudden loss of drive power, increasing the risk of a crash. Additionally, a disabled coach may require an evacuation procedure in an uncontrolled traffic situation, increasing the risk of injury to passengers.
The remedy
Prevost will inspect the vehicles, install spacers between the optical fire sensor and bracket, and replace the optical fire sensor, if necessary, free of charge. Owner notification letters were mailed September 8, 2023. Owners may contact Prevost customer service at 1-866-870-2046. Prevost's number for this recall is SR23-05.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Prevost H3-41 | 2019 |
| Prevost H3-45 | 2018, 2019, 2020, 2021, 2022, 2023 |
| Prevost H3-45 VIP | 2018, 2019, 2020, 2021, 2022, 2023 |
Components: EQUIPMENT:EMERGENCY:FIRE SUPRESSION:SENSORS
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
Other equipment recalls in 2023
119 of the 894 recall campaigns reported to NHTSA in 2023 concerned the equipment; Prevost Car (US) Inc. filed 35 campaigns in all.
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| 23V852000 15 Dec 2023 | Great Dane Trailers |
| 23V816000 5 Dec 2023 | Volvo Trucks North America |
| 23V804000 29 Nov 2023 | Tiffin Motorhomes, Inc. |
| 23V772000 17 Nov 2023 | Airstream, Inc. |
| 23V763000 11 Nov 2023 | Nova Bus (US) Inc. |
| 23V759000 10 Nov 2023 | Thor Motor Coach |
| 23V757000 9 Nov 2023 | Southeast Toyota Distributors, LLC |
NHTSA recalls (public domain) · all recalls of 2023