electron

Recently my Lexus 2006 gs430's red brake light would come on during driving for 1-2 min then disappear.
Then today, red brake light, amber brake light, traction control light, check vsc, check abs message all came on. Seem to be losing my brake.
After turn off the car for few minutes, the lights and messages are gone. Brake came back.
Just wondering if anyone had experiences something like this before.

BinaryJay

Possible reason for the brake light on the dash would be low brake fluid. You may have a leak somewhere. I'm not sure if the recall for the master cylinder cup covered the 430 or not, but this was one of the reasons for the recall. Though they blamed it on people getting brake fluid replaced with non-toyota fluids.

I'm not sure what you mean by red and amber brake lights though.

GS350Lexus

iTrader: (5)

First things first check ure brake fluid level in the bottle underneath the hood, if you have low brake fluid traction automatclly comes off.

electron

My Mechanic checked out my car. Turned out that the battery is producing unstable voltage which might be the cause of the unusual behaviour. I have changed a new battery so far no lights...crossing my finger.

BinaryJay

I didn't think batteries were capable of producing an unstable voltage. They produce the voltage they produce and it goes steadily downwards.

The only thing capable of outputting an unstable voltage is the alternator, and you'd get a dummy light for that in of itself.