Last post on Dec 05, 2013 at 3:36 AM
You are in the Pontiac Grand Prix
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Pontiac Grand Prix, Car Safety, Sedan
#40 of 213 Re: Service Traction Control/ABS [spanishfly05]
Jun 23, 2010 (11:22 am)
My 2004 Pontiac Grand Prix GTP recently started popping up codes as well telling me to service my ABS system, service my traction control, service my braking system, service my effort variable system, service my stability control system, and now I can't get three lights to go off on my dash. This is a very upsetting issue my car has had nothing but problems from the day I bought it. I completely agree with you about contacting the dealer b/c when I put my car on the scanner it said this was an electrical problem and they now want me to replace my whole computer and then re-program the stupid car! This is the last pontiac I ever buy. Have they told you what's wrong with your vehicle?
#41 of 213 Srvc ABS System / Service Variable Effort Steering
Jun 24, 2010 (3:09 pm)
My 2004 Grand Prix GT had an issue with the ABS. I had it checked last summer (2009). Came out that the right front speed sensor was messed up. So I was wondering what speed sensor it was! I replaced the hub, and some other sensors having to do with the speed...none did the trick...so i replaced the speed harness on the right front. It worked...for a while. It seems this is an issue again. I checked it to see if it was ok and it seemed to be fine. However, the computer is now saying that there is an issue with the left rear speed sensor as well! I don't know about this...I mean, if so many people are having this issue...how does a recall work on this? I've seen posts on carquest having to do with this also. It seems to be a common problem... Here's the link: http://www.carquest.com/common/downloads/partsTechBrakeCQB%2004-12.pdf
So now the Service Variable Effort Steering light pops up and I'm thinking it has to do with the Service ABS System light.
#42 of 213 as anyone came up with a solution to this problem yet?
Jun 26, 2010 (2:57 pm)
i have a 99 gtp with 177,000 and it still runs great but i have gone threw 3 front left hubs in 2 years well just recent ive had the abs light come on along with the trac control light. so i take it in and get it scanned and the codes were speed sensors in both front hubs so i replaced both fronts. now the traction control light kicks on usually when i am pulling in or backing out of a parking spot. any ideas on this? im starting to think its my traction control mod?
#43 of 213 Re: as anyone came up with a solution to this problem yet? [ohiogtp]
Jun 28, 2010 (5:08 am)
Judging from everything that I have been seeing on a lot of other forums, I would say try replacing the speed sensor harness. Many people have said that was the trick to the ABS and TC lights. They have them on eBay new for around $24-$45. if that does not work for you let me know and I will try to find other solutions. God Bless!!!!
#44 of 213 Re: as anyone came up with a solution to this problem yet? [chipmoss]
Jun 28, 2010 (8:41 pm)
ok thank u im gonna try it this week and let u know
#45 of 213 Re: as anyone came up with a solution to this problem yet? [chipmoss]
Jul 01, 2010 (7:51 am)
Chipmoss! I need some input! I'm new to this forum and I see that you're putting out some good information from what I can tell. Just recently I seem to have started having some of the same problems described in earlier posts with my '04 Grand Prix GT. These include the ABS light on, Traction Control disabled, and Service Variable Effort Steering in the DIC. I'm not sure what direction I should head w/ this. Any advice that you could offer would be greatly appreciated. Thanks and have a wonderful day!
#46 of 213 Re: as anyone came up with a solution to this problem yet? [oates1906]
Jul 14, 2010 (4:44 pm)
I have a 2008 GP and the ABS & Traction lights also both came on. I have 75k on the vehicle. I had my mechanic check it out prior to taking it to the dealer and he thought it could be wheel sensor as well. He also noticed that the plug to the left ABS wheel sensor was full of water. I took it to the dealer as I have a full warranty still on the vehicle and they replaced the left hub assembly n/c problem solved for about 2-3 days then the lights came back on.(it rained) They now tell me that they want to replace the harness however surprise surprise it is not covered by my warranty. I pulled the wheel off myself to have a look and low and behold the harness was full of water again. (it rained hard the other day again) I have cleaned out the harness and so far the lights have not come on. (day 1) Water is a conductor of electricity and I figure that it is causing the harness to short out when it gets full. This looks like a GM defect to me and I even called GM customer service to complain and was told they would call the dealer and get back to me in a day or so. That was a week ago and still no call to me or the dealer. I am going to see if the lights come back on over the next few days as there is no rain in the forecast, and I will report back what I find. Other should have a look at their harness as well and make sure that it is not wet.(inside the plug it self)
#47 of 213 Re: as anyone came up with a solution to this problem yet? [sweetride1]
Jul 14, 2010 (10:25 pm)
oates1906 ive been doin the same thing on my 99 gtp its nuts ive calle my local dealer to order the new male ends that plug into the speed sensor on the hub and they wanted $95 a side! i found some on ebay for about $30 shipped waiting on them to come in to put those new ends on each side and pray that fixes the problem because a whole new speed sensor harness cost $2200 from the dealer
#48 of 213 Re: as anyone came up with a solution to this problem yet? [sweetride1]
Jul 15, 2010 (6:57 am)
I apologize that no one has gotten back to you. Can you please email me your service request number and your VIN number so I can look into this further? You can get my email by clicking on gmcustsvc. Thank you,
Mariah GM Customer Service
#49 of 213 I am also stuck with this problem..HELP!
Aug 11, 2010 (7:50 am)
My ABS and Traction control lights come on every time I operate my vehicle. I have a 2006 Pontiac Grand Prix, and would love to have a car that I feel safe driving. If anyone can help me to try to fix this without spending a fortune in the shop, I'd greatly appreciate it. Maybe this is why they don't make Pontiac anymore.