Engine control module (ecu/ecm): software
Risk. Unstable idling or an engine stall can lead to loss of control of the motorcycle, increasing the risk of an injury or crash.
NHTSA has logged 1 owner complaint about the 2021 Yamaha MT-09, most often about the electrical system. It is covered by 2 safety recalls, and for recall 25V-248 the manufacturer reports only 34% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through April 16, 2025. Updated daily.
1 complaint grouped by the system owners reported.
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Electrical system | 1 | 0 |
| Engine | 1 | 0 |
| Fuel/propulsion system | 1 | 0 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
Risk. Unstable idling or an engine stall can lead to loss of control of the motorcycle, increasing the risk of an injury or crash.
Risk. Limited throttle response, engine stall, or a missing warning light can increase the risk of a crash.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Yamaha.
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the MT-09 median. How we score
Recent electrical system complaints filed with NHTSA, shortened. Personal details are removed.
I was making a right turn in 1st gear and applying small throttle for traction but the engine cut off during the turn. This is dangerous for a motorcycle as friction and throttle is needed for a safe turn even during slow speeds. I have raised the concern to a local dealer prior to this incident. I…
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.