Why does my 2007 Pontiac Montana van Traction Control light stay on?

SOURCE: low beam headlights not working on 2004 Pontiac Montana extended

You headlight lamp have a diffuser mechanism which allows it to flip between the hight beam and low beam feature of the bulb. In fact, you high beam will function even if the low beam is not working.

I would recommend the purchase of the new headlight lamp. It would cost you you any where from $15.00 per unit to get a replacement lamp

SOURCE: 2005 Pontiac SV6 Montana key fob unlocks doors but will not lock

For the sliding doors you need to clean the contacts, there are 6 or 8 on both sides, just wipe them clean as they are probably covered in oil/grease/grime.

SOURCE: need to replace thermostat on pontiac montana van.

public library...Chilton or Haynes auto repair manuals or collisionrepairadvice.com     make sure you bleed the system

SOURCE: abs light, trac light, service engine soon light 2001 Pontiac Grand Am

Sounds like you have a bad wheel speed sensor. You need to have it scanned. Since it's been sitting, it might just be a bad connection to one of the speed sensors.

SOURCE: 2007 G5 GT traction control light just came on and

traction control is related to differential.controls slippage for better handling.have it checked could just be faulty sensor