Recall 24V332 affects 329 2023-2024 Van Hool CX35 and CX45 buses for excessive Hydronic heater exhaust gas. Dealer repair is free.
Van Hool is recalling 329 2023-2024 CX35 and CX45 vehicles equipped with Hydronic L-II heaters because the burner units can release excessive exhaust gas. Excessive exhaust gas can result in smoke poisoning or cause a vehicle fire, and Van Hool dealers will complete the repair free of charge.
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What's wrong?
The Hydronic L-II heater in the 2023-2024 Van Hool CX35 and CX45 is a diesel-fueled hydronic heater. It burns fuel in a burner unit to heat fluid, then moves that heat through the bus heating system so the cabin and related systems can warm without relying only on engine heat.
On the affected buses, the burner unit was not calibrated correctly at the factory. That calibration error lets the heater release excessive exhaust gas during operation. The replacement heater component is calibrated correctly, so the burner unit controls combustion as designed and avoids those excessive exhaust gas values.
There is no warning sign before failure. An owner or operator should not count on a dashboard message, smell, sound, or heater performance change to identify the problem before the heater releases excessive exhaust gas.
Who's affected?
Includes both CX35 and CX45 buses from 2023 and 2024, with the same diesel-fueled hydronic heater equipment listed for each model.
| 2024 Van Hool CX35 | Equipment |
|---|---|
| 2024 Van Hool CX45 | Equipment |
| 2023 Van Hool CX45 | Equipment |
| 2023 Van Hool CX35 | Equipment |
| Units affected | 329 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific bus is included.
What's the safety risk?
Excessive exhaust gas from the heater can lead to smoke poisoning or a vehicle fire, increasing injury risk. Until the heater is inspected, reworked, and calibrated, keep the heater off and schedule the recall repair soon. Repair is free at any franchised Van Hool dealer.
What should I do?
- Check your VIN to confirm your 2023-2024 Van Hool CX35 or CX45 is included in this recall.
- Contact a franchised Van Hool dealer to schedule the free Hydronic L-II heater inspection, rework, and calibration that addresses excessive exhaust gas from the burner unit.
- Avoid using the heaters until the dealer repair is complete.
- Bring the recall notice if Van Hool sent one. Reference recall number 24V332 when you call.
What happens at the repair
Do not use the heaters until the recall repair is complete. At the dealer, a Van Hool technician inspects the Hydronic heaters, reworks the affected heater components, and calibrates the units so exhaust gas values stay within the required range. The recall repair is free, with parts and labor covered. The source notice does not describe a separate reimbursement process for owners who already paid for a related heater repair, so this section does not add one.
Timeline
| May 13, 2024 | NHTSA published the recall |
|---|---|
| May 20, 2024 | Owner notification mailed |
| May 27, 2024 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 24V332?
Recall 24V332 covers 329 2023-2024 Van Hool CX35 and CX45 vehicles with Hydronic L-II heaters. The burner units can release excessive exhaust gas, which can cause smoke poisoning or a vehicle fire. Dealers will inspect, rework, and calibrate the heaters for free.
What should I do if my 2023-2024 Van Hool CX35 or CX45 is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 24V332. If it is, do not use the heater until the dealer repair is complete. Contact a franchised Van Hool dealer and reference recall 24V332 when you schedule service.
Is the recall repair free?
Yes. Federal recall law requires the recall repair at no cost, and ABC Bus says dealers will inspect, rework, and calibrate the Hydronic L-II heaters free of charge. Parts and labor are covered at the franchised dealer.
What is the safety risk?
The safety risk is excessive exhaust gas from the heater burner unit. That can lead to smoke poisoning or a vehicle fire, increasing injury risk. Until the repair is complete, ABC Bus advises owners not to use the heaters.
What if I bought this Van Hool bus used?
The free recall repair still applies. Recall eligibility follows the VIN, not the first owner. Check your VIN to confirm whether your 2023-2024 Van Hool CX35 or CX45 is included, then call a franchised Van Hool dealer with recall 24V332.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/24V332000 |
|---|---|
| Van Hool customer service | 1-407-287-3184 |
| NHTSA recall # | 24V332 |
| NHTSA recall # (full) | 24V332000 |
Source documents
-
Download Quarterly Report (PDF) - Download Recall Report (PDF)
- Download Owner Notification Letter (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →