NHTSA vehicle safety data
2020 Yamaha Smax Recalls & Complaints
The 2020 Yamaha Smax has 1 NHTSA recall campaign on file as of November 3, 2026. try.vin has no NHTSA owner complaints on file for the 2020 Yamaha Smax. Recall repairs are usually free at an authorized Yamaha dealer.
NHTSA recall and complaint data for the 2020 Yamaha Smax. Recall data is refreshed daily from NHTSA.
Missing Primary Sheave Nut May Cause Engine Stall
NHTSA #21V251000 · Engine · NHTSA notice
Reported April 9, 2021 · Yamaha Motor Corporation, USA
Potentially affected: 4,262 vehicles
Repair completion: 32.66% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)
Yamaha campaign 990145 · Owners notified April 28, 2021
Defect description
Yamaha Motor Corporation, USA (Yamaha) is recalling certain 2015-2020 Yamaha XC155 scooters. The primary sheave nut may loosen and fall off.
Safety consequence
A missing primary sheave nut may cause a stall, without the ability to restart the engine, increasing the risk of a crash.
Manufacturer remedy
Owners are advised not to ride their scooter until the remedy has been preformed. Yamaha will notify owners, and dealers will replace the primary retaining nut and washer with one of a new design, free of charge. Owner notification letters were mailed on April 28, 2021. Owners may contact Yamaha's customer service at 1-800-962-7926. Yamaha's number for this recall is 990145.
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.
Other Yamaha Smax model years
Check your 2020 Yamaha Smax VIN
Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Yamaha Smax at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.
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