NHTSA campaign 18V521000
BYD Recall 18V-521: Brake Support Bolt may Break
NHTSA recall 18V521000 was reported by BYD Coach & Bus on August 7, 2018, with 14 vehicles potentially affected (per NHTSA). NHTSA's record lists the BYD K11M for model years 2016–2017. Owners were notified on October 11, 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 18V521000 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
- 18V521000 (also written 18V-521 or 18V521)
- Filed by
- BYD Coach & Bus
- Report received
- Potentially affected
- 14 vehicles (per NHTSA)
- Component
- Service Brakes, Air — Disc — Caliper
- Owners notified
Repair completion: 100% (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 18V521000. 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.
BYD
All BYD recallsNHTSA's recall notice
As NHTSA's recall record states it for campaign 18V521000.
Defect description
BYD Coach & Bus (BYD) is recalling certain 2016-2017 K11M hybrid electric transit buses, equipped with ZF Axles that have radial air disk brakes. Surface roughness of a guide pin in the radial brake calipers may cause the brake carriage guide pin support bolt to break.
Safety consequence
Breakage of the guide pin can cause a loss of braking ability or a loss of tire pressure, increasing the risk of a crash.
Manufacturer remedy
BYD will notify owners, and dealers will install a bushing kit and reinstall the brake calipers, free of charge. The recall began October 11, 2018. Owners may contact BYD customer service at 1-661-940-3250.
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 18V521000
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.