Tl* the contact owns a 2012 toyota tacoma. while driving various speeds and depressing the accelerator pedal, the vehicle failed to accelerate. also, the traction control and check engine warning indicators illuminated. the vehicle was taken to an independent mechanic where it was diagnosed that the secondary air injection valve failed and needed to be replaced. the vehicle was not repaired. the vehicle was not taken to a dealer. the manufacturer was not made aware of the failure. the approximate failure mileage was 45,000.