2002 Toyota Sequoia wheels problems

During rush hour, a vehicle before me abruptly stopped. To avoid from hitting them I swerved to the left hitting a wall divider when the front left wheel caved in having me and my family swerve all the way to the right into another sound wall. What I tried to do was hit the brake before going head on into the wall but the gas pedal was stuck causing us to accelerate into the wall. Luckily there were shrubs and bushes to help the car go into a slow as we slid across the wall.

Since the date indicated (nov.29,2013) the track off lights and system in my sequoia gets activated without road conditions which justify it.I felt a strong noise and lost power and had a dangerous situation because of the sudden stop or loss of acceleration. Took it to toyota and told sensors and computer needed to be replaced at great cost , but with no guarantee of definite solution.I believe this is a safety issue involving anti- skid and track system which need to be attended to promptly.can you help?