Here it is (from another forum).....
For those of us that want to disable TRAC (
Traction Control) and VSC (Vehicle Stability Control) for a while, the following simple procedure will do it for sure on the TCH, unlike the other procedures on the net that I have seen:
Perform procedures within 60 seconds. (lots of time in other words)
(1) Turn the power switch on IG. (This means press the start switch twice to get the dash to light up while NOT pushing the brake pedal).
(2) Now push the brake pedal with your left foot, and fully depress the accelerator pedal with your right foot, twice with the shift
P position.
Note: Pushing the brake pedal in these procedure is just to allow the ability to move the shift lever from P to N and back to P
(3) Fully depress the accelerator pedal twice with the shift
N position.
(4) Fully depress the accelerator pedal twice with the shift
P position.
The message "FWD Maintenance Mode" should be displayed on the multi-information display.
(5) Start the engine by pressing the power switch while depressing the brake pedal.
The multi-information display should alternate between "FWD Maintenance Mode" and "Check VSC" and a couple of other lights will be on.
Next time you shutdown, the system will be back to normal.
This does not shut the ABS system for braking.