VehicleVerdict

2021 Prevost H3-45 problems

Verdict · NHTSA data

Limited data — recalls on file

NHTSA has just 0 complaints on file for the 2021 Prevost H3-45 — too few to judge reliability from owner reports alone — but 3 recall campaigns apply to this year, so any used example should have its VIN checked for completed recall work.

0

NHTSA complaints

3

Recalls

1

Investigations

0

Crash-involved

0

Fires reported

0

Injuries

0

Deaths

—

NCAP overall

How does 2021 compare to other H3-45 years?

H3-45 NHTSA complaints by model year, 2021 highlighted2 complaints1989: 0 complaints1990: 0 complaints1991: 0 complaints1992: 0 complaints1993: 0 complaints1994: 0 complaints1995: 0 complaints1996: 0 complaints1997: 0 complaints1998: 1 complaints1999: 0 complaints2000: 0 complaints2001: 0 complaints2002: 0 complaints2003: 0 complaints2004: 0 complaints2005: 0 complaints2006: 0 complaints2007: 0 complaints2008: 0 complaints2009: 0 complaints2010: 0 complaints2011: 0 complaints2012: 0 complaints2013: 0 complaints2014: 0 complaints2015: 0 complaints2016: 0 complaints2017: 0 complaints2018: 0 complaints2019: 0 complaints2020: 0 complaints2021: 0 complaints2022: 0 complaints2023: 0 complaints2024: 2 complaints2025: 0 complaints2026: 0 complaints
H3-45 NHTSA complaints by model year, 2021 highlighted. Red bars are years to avoid.

See all H3-45 years to avoid →

Does the 2021 Prevost H3-45 have recalls?

3 NHTSA recall campaigns on file. Recall repairs are free at franchised dealers.

23V889000OtherDecember 22, 2023 · 2,100 units

Defect

Prevost Car (US) Inc. (Prevost) is recalling certain 2014 and 2018 H3-41, 2013-2024 H3-45, 2012-2024 X3-45, and 2017-2023 X3-45 Commuter vehicles. The red beacon lighting on the Threshold Warning System (TWS) may not be bright enough. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 403, "Platform Lift Systems."

Consequence

Beacons that do not provide proper illumination may be less visible to wheelchair lift users, increasing the risk of injury.

Remedy

Prevost will replace the red beacons, free of charge. Owner letters were mailed September 16, 2024. Owners may contact Prevost customer service at 1-866-870-2046. Prevost's number for this recall is SR24-03.

23V126000OtherFebruary 24, 2023 · 555 units

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.

Consequence

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.

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.

22V221000EngineApril 6, 2022 · 6,342 units

Defect

Prevost Car (US) Inc. (Prevost) is recalling certain 2010-2023 H3-45, H3-45 VIP, X3-45, X3-45 Com, and X3-45 VIP vehicles. In the event of the alternator front bearing seizing, the alternator belt may continue to operate, causing the bearing to overheat.

Consequence

An overheated alternator bearing can increase the risk of a fire.

Remedy

Prevost will replace the alternator belt, free of charge. Owner notification letters were mailed September 30, 2022. Owners may contact Prevost customer service at 1-866-870-2046.

2021 Prevost H3-45 — common questions

Is the 2021 Prevost H3-45 reliable?

The record is thin — 0 NHTSA complaints — so owner-report data can't strongly confirm reliability either way, though 3 recalls should be verified as completed.

Does the 2021 Prevost H3-45 have recalls?

Yes — NHTSA lists 3 recall campaigns affecting the 2021 Prevost H3-45. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.

Is the 2021 Prevost H3-45 under NHTSA investigation?

NHTSA opened one investigation into this model year; all are now closed.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.