Originally Posted by 82RollaSR5

From what ive seen if a Sequoia loses braking system pressure The ABS, Brake, VSC, and trac lights come on. This can be caused by ALOT of things. You really need to bring the car to a Toyota dealer and have them look at it. Thats a very large truck and if it isnt as simple as a disconnected vacuum hose some can be killed by a crash with that thing.