2024 TRIUMPH SPEED 400 — Problems, Recalls & Safety Data

Odometer is approximately 5% off (reads too far). This impact service intervals and estimations for range. Speedometer is fully 10% off (overestimates speed). This affects safety, because it impacts your perceived speed. This is unacceptable on a new bike.

Bike shut off electrically while traveling at highway speeds. Signal flashers and emergencies failed and there was no throttle response. Check engine light came on and traction control disabled light came on. Bike displayed an error code of P2138 and P2122. Bike was unable to be safely ridden after being shut down and restarted. The bike could be ridden after starting for a short time before the throttle cut out again and complete loss of power. Emergency flasher functionality was intermittent with each attempt at starting the engine again.

Bike shut off electrically while traveling at highway speeds. Signal flashers and emergencies failed and there was no throttle response. Check engine light came on and traction control disabled light came on. Bike displayed an error code of P2138 and P2122. Bike was unable to be safely ridden after being shut down and restarted. The bike could be ridden after starting for a short time before the throttle cut out again and complete loss of power. Emergency flasher functionality was intermittent with each attempt at starting the engine again.

Bike shut off electrically while traveling at highway speeds. Signal flashers and emergencies failed and there was no throttle response. Check engine light came on and traction control disabled light came on. Bike displayed an error code of P2138 and P2122. Bike was unable to be safely ridden after being shut down and restarted. The bike could be ridden after starting for a short time before the throttle cut out again and complete loss of power. Emergency flasher functionality was intermittent with each attempt at starting the engine again.

I had been riding on a road for about 15 minutes at speeds ranging from 40-50 mph. As I came to a stop sign, I downshifted and used engine braking to assist the brakes in slowing down. After I downshifted from 3rd to 2nd gear, the engine quit and all dash lights illuminated. I pulled the clutch, pressed the starter button as I coasted, and the engine re-started. The engine ran fine before and after the incident. This happened at approximately 1,600 miles. This is the second time this happens under similar conditions: downshifting from 3rd to 2nd, and using engine braking. The first time it occurred, I was unable to restart the engine while coasting. I had to stop, turn the ignition off and on, and restart. This happened at approximately 800 miles. This seems to be a random occurrence. I have not been able to recreate it on purpose. I have not had the motorcycle inspected by the dealer for this issue, since it is not isolated to my motorcycle. Online forums for the Triumph Speed 400 and 400 Scrambler have many instances of this issue occurring: [XXX] [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)