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29s here the TCS button (traction control system) is for you to enable or disable the computer controlled slip-differental or simply put the thing that senses if one of the drive wheels are spinning faster than the other(usually do to the other wheel slipping). the system when engauged will slow the other wheel or wheels down to match the slow so that you dont get an sliding affect (most noticable in snow and ice). if the light is on and you cant turn it off by pressing the button it usually means that your vehicle sensed a problem somewhere in that system during its pre-ignition check and it will automatically disable it to prevent a malfunction. as for possible causes pherhaps a speed sensor malfunction or internal trans problem a diagnostic would be ness to determine or you could try reseting your cars memory by removing your battery cables for a few minutes. beware some cars have a self locking radio that will require a code to unlock.
What else can I help you with?
When was Pontiac Montana created?
Pontiac Montana was created in 1999.
Where is the camshaft sensor located on a 1999 pontiac Montana?
Cam sensor location 02 pontiac montana 3.4
How do you replace the tcc solenoid in a 1999 Pontiac Montana?
with explosives
What size tires are on a 1999 Pontiac Montana?
215/70R15
What is the location of the water pump in a 1999 Pontiac Montana?
alternator
What is the bank 1 sensor on a 1999 Pontiac Montana?
p134
What is the Battery size for Pontiac Montana 1999?
For a Pontiac Montana the battery is a group 78. Follow this link for dimensions.http://www.rtpnet.org/teaa/bcigroup.html
Is there a fuel reset button on a 1999 Pontiac grand am?
No.
1999 Pontiac Montana have disc or drum brakes in the rear?
drums
1999 Pontiac Montana brake light bulb replacement?
In order to change the brake light, check your manual for directions. You will need to remove the cover and replace the burnt out bulb.
Why won't 1999 Pontiac Montana tailights work?
ther might be a replacable circuit board of some kind behind the tail light housing
Where is the oil pressure sensor located on 1999 Pontiac Montana?
You can find the oil pressure sensor for your 1999 Pontiac Montana on the front of the engine. The low pressure oil sensor will be just below the left cylinder head.
