2013 Toyota Tundra

Engine and fuel system complaints dominate what 2013 Tundra owners report. On the engine side, the secondary air injection system draws repeated attention, owners describe check engine lights returning multiple times, with sensors requiring replacement more than once to address the fault. The fuel and propulsion system complaints center on throttle response issues, where owners report a lag between pressing the accelerator and the vehicle responding, sometimes accompanied by a check engine light and a brief loss of power before the truck recovers. Steering complaints are the third most-reported system, though the narratives don't point to a single dominant symptom. Outside the top systems, a handful of owners mention wheel corrosion severe enough to cause air loss, and isolated reports touch on horn failure and odometer discrepancies from prior ownership. The secondary air injection pattern and the throttle hesitation with accompanying check engine light appear most consistently across multiple owners.