NHTSA campaign 18V117000 · Nova Bus campaign CR4225
Nova Bus Recall 18V-117: PEX Connectors may Leak Coolant
NHTSA recall 18V117000 (Nova Bus campaign CR4225) was reported by Nova Bus on February 17, 2018, with 24 vehicles potentially affected (per NHTSA). NHTSA's record lists the Nova Bus LFS for the 2013 model year. Owners were notified on March 6, 2018, per NHTSA.
Updated daily from NHTSA's recall files
Is my vehicle included?
This page lists, by model year, the vehicles NHTSA's recall record names for campaign 18V117000 in the model years try.vin imports (1995 and later); NHTSA's own record can list more. A model year on the list doesn't mean every vehicle of that year is included, and some may already have been repaired.
To see whether a specific vehicle is included and still needs the repair, enter its VIN at nhtsa.gov/recalls.
Free VIN check: decode a VIN to see its year, make and model.
Key facts
- NHTSA campaign
- 18V117000 (also written 18V-117 or 18V117)
- Filed by
- Nova Bus
- Nova Bus campaign number
- CR4225
- Report received
- Potentially affected
- 24 vehicles (per NHTSA)
- Component
- Engine and Engine Cooling — Cooling System
- Owners notified
Repair completion: 29.17% (latest rate the manufacturer reported to NHTSA; dataset updated October 21, 2026)
NHTSA cautions against comparing completion rates across recalls or manufacturers. How try.vin reads them.
Vehicles listed for this recall
NHTSA's recall record lists these vehicles for recall 18V117000. try.vin imports model years 1995 and later, so NHTSA's own list can be longer. Model years with a try.vin recall page link to it. Build dates are NHTSA's range for a model year (per NHTSA); a vehicle built in that range is not necessarily included.
Nova Bus
Nova Bus LFS
- 2013 · Vehicles built February 1, 2013 – April 30, 2013 (per NHTSA)
NHTSA's recall notice
As NHTSA's recall record states it for campaign 18V117000.
Defect description
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.
Manufacturer remedy
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.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Sources
Official NHTSA notice for recall 18V117000
Campaign details come from NHTSA's recall files, which try.vin imports once a day. The plain-language subject and the completion rate come from the U.S. Department of Transportation's Recalls Data dataset. How try.vin reads recall data.