The 2018 Yamaha Xc155 has 2 NHTSA recall campaigns affecting an estimated 7,378 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 1 complaint with NHTSA, most often about the engine. Last updated July 5, 2026.
Recall campaigns
ENGINE21V2510002021-04-094,262 affected
Defect
Yamaha Motor Corporation, USA (Yamaha) is recalling certain 2015-2020 Yamaha XC155 scooters. The primary sheave nut may loosen and fall off.
Consequence
A missing primary sheave nut may cause a stall, without the ability to restart the engine, increasing the risk of a crash.
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…
ENGINE AND ENGINE COOLING20V2770002020-05-153,116 affected
Defect
Yamaha Motor Corporation, USA (Yamaha) is recalling certain 2015-2018 XC155 scooters. The cylinder head nuts may not have been tightened properly and could loosen, allowing coolant to foul the spark plug.
Consequence
A fouled spark plug could cause the engine to stall at idle and possibly not restart, increasing the risk of a crash.
Remedy
Yamaha will notify owners and dealers will replace the cylinder head gasket and tighten the cylinder head nuts, free of charge. The recall began May 29, 2020. Owners may contact Yamaha customer service at 1-800-962-7926. Yamaha's number for this recall is 990137.
Complaints by component
ENGINE
1
Total complaints1
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal
information removed.
“I am filing a complaint regarding yamaha's handling of the recall on this scooter. Despite receiving the recall notice in really june, I was told that the parts necessary to repair the scooter defect would not be available for several weeks. After waiting over two months, I called the local yamaha…”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL,
FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2018 Yamaha Xc155 as of
July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page
contains ads and affiliate links. Full methodology.