Pex connectors may leak coolant
Defect Summary
Nova bus (nova) is recalling certain 2013 lfs transit buses equipped with transmission oil coolers. in the event of a transmission oil cooler failure, transmission fluid may mix with coolant that circulates through the passenger compartment heating system. exposure to transmission fluid may degrade the pex connectors of the heating system, resulting in hot coolant leaking into the passenger area.
Safety Consequence
Leaking coolant could come into contact with passengers, increasing their risk of injury.
Corrective Action
Nova will notify owners, and dealers will replace the pex fittings with brass fittings, free of charge. the recall began on march 6, 2018. owners may contact nova customer service at 1-800-350-6682. nova's number for this recall is cr4226.
Similar Recalls
Other recalls from Nova Bus (us) Inc. or involving Engine And Engine Cooling.
FAQ: Recall 18V117000
Your rights, the repair process, and what each field on this page means.
What is recall 18V117000?
NHTSA recall 18V117000 was issued by Nova Bus (us) Inc. on February 17, 2018. It addresses: Pex connectors may leak coolant. The recall affects approximately 24 vehicles, with the defect involving the Engine And Engine Cooling component.
How do I get this recall repaired?
Contact any authorized Nova Bus (us) Inc. dealer and reference NHTSA recall ID 18V117000 or the manufacturer campaign number CR4225. Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.