Key Takeaway
Air Leak in Brake Chamber by Nova Bus (US) Inc. was recalled on April 15, 2025. What to do: Nova Bus will replace the brake chambers, free of charge. Owner notification letters were mailed August 21, 2025. Owners may contact Nova Bus customer...
Air Leak in Brake Chamber
Description
Nova Bus (US) Inc. (Nova Bus) is recalling certain ZF North America Knorr-Bresme 20/22-57 brake chambers, with part number K038830N00, sold as replacement parts for certain buses. The brake chamber may have been improperly manufactured, which can result in an air leak.
Injuries / Consequence
A brake chamber air leak may cause the brakes to engage unexpectedly, which can overheat the brakes and increase the risk of a fire. Additionally, unexpected braking can increase the risk of a crash.
Remedy
Nova Bus will replace the brake chambers, free of charge. Owner notification letters were mailed August 21, 2025. Owners may contact Nova Bus customer service at 1-450-472-6410. Nova Bus's number for this recall is CR5720.
Products Affected
Vehicle
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Frequently Asked Questions
Is this recall still active?
Check the status badge at the top of this page. "Ongoing" means the recall is still active and you should follow the remedy instructions. "Completed" or "Terminated" means the recall process has concluded, though the safety issue remains relevant for any unrepaired products.
How do I check if my product is affected?
Compare the model number, lot code, serial number, or date range listed in the recall notice with the information on your product's label or packaging. For vehicles, check your VIN at NHTSA.gov/Recalls.
What remedy is available for this recall?
The listed remedy for this recall is: Nova Bus will replace the brake chambers, free of charge. Owner notification letters were mailed August 21, 2025. Owners may contact Nova Bus customer service at 1-450-472-6410. Nova Bus's number for...
Where can I find the original recall notice?
This recall was issued by NHTSA. You can view the original notice using the link provided above.