If the harness covering is damaged by heavy vibration while the car is operating, it could cause a short circuit in certain harness wires. That could result in a malfunction in engine control or degraded shift quality. It could also cause the engine to stall and increase the risk of an accident.
Dealers will inspect the engine harness and add a protector clip if necessary. If the harness is already too damaged, the harness will be repaired free of charge.
The recall covers all 2010 Mazda3s sold to date, and the recently redesigned car has sold briskly so far. Recalls of a first-year model aren’t uncommon, but obviously it’s far from flattering for Mazda.
Owners can contact Mazda at 800-222-5500, or the NHTSA Vehicle Safety Hotline at 888-327-4236.