Three problems related to brake abs warning light have been reported for the 2009 Volkswagen Jetta.
My vehicle was stuck in a snow drift at the end of my road. I deactivated my electronic skid protection to get my vehicle free from the snow drift. I successfully made it onto the road and only going 20mpn due to icy roads and bad weather conditions. 1 to 2 miles down from where I was stuck, my abs and esp light came on and I almost lost control but because I was going so slow, I was a ble to keep it on the road. I pulled into the closest gas station to investigate and my rear brakes were locked up and would not come loose. I thought they may ahve been frozen so I cleaned what snow was on there and actuated the brakes several times, moving my vehicle back and forth to break them loose. This did not work so I drove it about 4 miles to the closest vw dealership, which was very difficult due to the icy roads and my rear wheels locked up. The vw technician told me that because my rear wheels were stuck in that snow drift and my front tires were trying to get me unstuck, a code popped up which activated my rear brakes. He cleared the code and my car works perfectly fine. If this "code" had tripped 10 minutes later, I would have been on the highway traveling at higher speeds on very bad road conditions and would have cause an accident. I do not know if the dealership was truthful as to what they found, if it was truly a code or if they were just frozen shut which created the code. I just wanted to create a complaint to log this issue in case this happens again, I have proof of the issue and complaint.
My abs light came on when I was in cruise control at 60 mph and knocked me out of cruise control. Another time I was getting ready to stop for a stop sign and the brake pedal started to vibrate and I almost couldn't stop and the abs light went on.
I am an aerospace engineering consultant. My 09 Jetta had rear passenger caliber, rotor, and brake line replace at 10,000 miles for excessive wear. 1st noticed when going around corners applying brakes a dragging effect would come from rear passenger brake. Dealer could not give any reason for this happening and replace rotor, caliper, and brake line at 10k. Summer time weather. Car exhibited the smell of hot brakes and rubber several times between the next failure. The next failure occurred at 34000 mile. Driver side rotor was so pitted and warped from excessive heat dealer replace rotor and caliper and gave no reason problem. Summer time weather. At 37080 mile on Feb 10 2011 at 4:30 am with outside temperature around 20f degrees I released parking brake and started driving to job site. The car felt like it was straining to accelerate. Within two miles from the house the car pulled violently to left , the abs light came on and the car stopped into oncoming traffic and would not move. I shut the esp system off car still work not move forward. I drove in reverse back to house about 1. 5 miles. When I looked at rear brake rotor on driver side since it was still dark the rotor was glowing red like the burner on electric stove. Smell of burning materials was in the air. Called dealer which is ancria of san antonio, TX. Dan minor the service manager thinks it was the emergency brake cable spring not releasing brake. Car was dropped of Friday Feb 11th 2011 at dealer. A case has been open with vw engineering. Vw dealer is clueless as to why this is happening. I suspect the good german engineers are too proud to say we have a problem fix what seems to be a well documented problem with 09 Jettas. Someone is going to get hurt and no one is listening. Thankfully the dealer has been replacing things to date.