2010 Toyota Sequoia Transmission Problems

Your vehicle accelerated uncontrollably in both reverse and drive despite applying the brakes with full force, causing the tires to spin as the car tried to reach maximum speed. Later that night while parked and unoccupied, your vehicle attempted to start itself repeatedly, with the headlights, interior lights, radio, and speakers cycling on and off for 5-7 minutes until the battery completely drained. This issue likely involves a malfunction in the throttle control system or electrical system that's causing unwanted acceleration and spontaneous starter engagement, which may require diagnostic testing and replacement of faulty sensors or electrical components.

Your engine is leaking oil from both sides of the cam tower due to failed sealant, which the dealership says needs engine removal to fix properly. The repair estimate is over $4,000 (mostly labor), though the parts themselves cost only about $170, making it expensive for most owners to repair promptly. The fix involves replacing the failed sealant and requires removing the entire engine to access the cam tower seals.