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2005 Terazza Stability System Problems

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#1 of 12 2005 Terazza Stability System Problems by scully504 May 25, 2007 (11:07 am)
I recently took my 2005 Terazza to the dealer because as I was driving it, the traction control would kick in, pump the brakes, jerk the steering wheel to the left and then give me a message saying "service stability system" as the traction control light on the dash would come on. Regardless of whether I had traction control switched off, this was still happening.   The dealer explained that traction control is different from the stability system, but somehow they were both freaking out at the same time.   Anyhow, they told me that some wires were getting pressed together causing problems so they replaced the wires, and put them in conduit to prevent further issues. They also said they needed to replace a sensor. They got the sensor, and apparantly that wasn't the problem because they still have my van (since Monday, today is Friday) and they say that there is still a problem somewhere but they can't find it. They said it is probably in the in wiring "somewhere".   Yesterday they were consulting with GM to try and troubleshoot it, but still no good news.   Anyhow, I was wondering if anyone else has had similar problems. I was also wondering what happens if they can't fix it? It's definately a safety issue - not drivable, as you essentially lose control of brakes and steering for a second or 2. Do they disasemble the whole van and put it back together?   Thanks for listening and any input! Replies to this message: kcorey (Jun 11, 2007 11:35 am) scully504 (Jun 11, 2007 12:19 pm) tdoghb2 (Jul 06, 2007 10:21 pm) scully504 (Jul 07, 2007 4:47 am) kcorey (Jul 24, 2007 1:48 pm) morewasabi (Aug 30, 2007 8:35 pm) and 1 more... mkauz52 (Jan 20, 2008 3:59 pm) kcorey (Jan 20, 2008 4:22 pm)
#2 of 12 Re: 2005 Terazza Stability System Problems [scully504] by kcorey Jun 11, 2007 (11:35 am)
Replying to: scully504 (May 25, 2007 11:07 am) I'm really sorry to be replying so late...I've had this happen twice to me, both times about a week apart. They both happened after I started the car after about a 8 hour stop. Within a mile of my start, while on a highway going about 50 or 55, the same thing as you described happened. It almost feels as though a tire is going flat. When I called the Service Manager of the dealer, he advised me to bring in the car. As it was on a Friday, both times, he wanted me to bring in the car on Monday or Tuesday. In the meantime I read the Owners' Manual and it states that this is a normal reaction, especially when the car first starts off (within a mile, or so) and if the car seems to be losing traction. When it happened before, the car had about 20,000 miles on it, now it has 30,000 miles, and it has never happpened again. Usually I just don't go over 50 for the first mile, especially if it's cold out, and everything seems to be OK. The Service Manager agreed with me. Please read the Owners' Manual. Replies to this message: scully504 (Jun 11, 2007 12:19 pm)
#3 of 12 Re: 2005 Terazza Stability System Problems [kcorey] by scully504 Jun 11, 2007 (12:19 pm)
Replying to: kcorey (Jun 11, 2007 11:35 am) They finally fixed my problem. After the initial repair of wires and a broken sensor, they found some other loose wires.   What was happening to me did almost feel like a flat tire, but it was too dangerous to ignore. It was happening at any speed, from 15 MPH to 55 MPH, and repeatedly.   I am curious what the owners manual says so I will read it, but if it's "normal" and continues to happen even after the repairs, it is a safety issue and I'll have to contact whomever I need to, to file a complaint. I don't like swerving off into the next lane, let alone with my son in the car.   Thanks for your input.
#4 of 12 Re: 2005 Terazza Stability System Problems [scully504] by tdoghb2 Jul 06, 2007 (10:21 pm)
Replying to: scully504 (May 25, 2007 11:07 am) I too have had mine in since Monday,for the 5th time for the same problem. I also have been having problems with the stereo system. I will turn it on, there will be a popping noise and then the entire system blacks out for a few seconds and comes back on. The dealership says that nothing is showing up on the computer for either issues. Both of these problems have been off and on for the past two years and they keep telling me the same things. First it is in the wiring. Then it is in the sensors. Then it is this or that. Now they are consulting with GM. They have no idea what it is either. The book states that if the traction control light comes on and stays on, that it could be a engine problem. All I have to say is that this is the last time I am dealing with it before I bring up the Replies to this message: scully504 (Jul 07, 2007 4:47 am) kcorey (Jul 24, 2007 1:48 pm) morewasabi (Aug 30, 2007 8:35 pm) scully504 (Aug 31, 2007 6:06 am)
#5 of 12 Re: 2005 Terazza Stability System Problems [tdoghb2] by scully504 Jul 07, 2007 (4:47 am)
Replying to: tdoghb2 (Jul 06, 2007 10:21 pm) I get the radio blackout thing occassionally too. Not sure I hearing a popping noise (I'll have to listen better).   I also get random noises from time to time where the dashboard is dinging like their is a problem with something, but no lights are on. When I turn of the engine, the noise goes away and doesn't come back for months until it happens again.   My big concern is getting these issues worked out BEFORE my factory warranty is up in October 2008. Might be a good candidate for an extended warranty..... Replies to this message: kcorey (Jul 24, 2007 1:48 pm) morewasabi (Aug 30, 2007 8:35 pm) scully504 (Aug 31, 2007 6:06 am)
#6 of 12 Re: 2005 Terazza Stability System Problems [scully504] by kcorey Jul 24, 2007 (1:48 pm)
Replying to: scully504 (Jul 07, 2007 4:47 am) My 2005 Terraza is leased, and the lease expires in January. I will be leasing an Enclave, even though we really love the Terraza. My fervent advice...if I owned this car, or ANY car, would be to get an exteded service warranty...from the manufacturer!! Please, don't buy these "fly-by-night" warrantees that are offered on the internet or that you see advertised in papers or receive in the mail. Ask your GM (or whatever brand you have) Service Department which one they accept. Only go with the manufacturer!!
#7 of 12 Re: 2005 Terazza Stability System Problems [scully504] by morewasabi Aug 30, 2007 (8:35 pm)
Replying to: scully504 (Jul 07, 2007 4:47 am) Question. How many drivers on your van? If you have two drivers,and each driver has their own key, the Terraza will remember each driver. My wife is driver 1 and I am driver 2. If my wife has been driving and then I drive the van, there is a black out of the radio at first as the computer recognizes me as driver 2 and then starts playing my last radio station or CD or DVD. It took me a while to figure this out, but its a nice feature as I my wife doesn't ask me "did you change my radio stations? Replies to this message: scully504 (Aug 31, 2007 6:06 am)
#8 of 12 Re: 2005 Terazza Stability System Problems [morewasabi] by scully504 Aug 31, 2007 (6:06 am)
Replying to: morewasabi (Aug 30, 2007 8:35 pm) We have 2, but it happened even if I was the only one driving it. We actually just took the van in last week because the sliding door malfunctioned. It had been dinging at us like it was open even though it was fully closed. They had to replace a bunch of stuff in the mechanism and sensors. Also, we told them about the radio and they ended up replacing it. They also fixed the horn because I had the problem with it being hard to push.   Thanks for the input though!
#9 of 12 Terrazza Stability System Problems by dave_justdave Nov 13, 2007 (12:18 pm)
We have also had problems and have had the system serviced twice. I'm not sure what GM did but it was all under warranty. Our problems were not as serious, the whole stability system would stop and the require servicing message would come on after even a minor slippage in rain or snow. In general, this stability system does not seem to work at all as the brochure or owners manual state, it has been disappointing since day one. Replies to this message: kcorey (Nov 13, 2007 1:06 pm)
#10 of 12 Re: Terrazza Stability System Problems [dave_justdave] by kcorey Nov 13, 2007 (1:06 pm)
Replying to: dave_justdave (Nov 13, 2007 12:18 pm) Here's a little update about the Stability Control System malfunction that may help. (First off, I no longer have the Terraza...the lease was just about up and I turned it in on an Enclave.) When the car had about 30,000 miles on it, I replaced the tires (4 used tires, all Goodyear) and had the 2 front tires balanced. The tire dealer where I bought the tires from advised me that judging by the wear on the original tires, the car appeared to be out of alignment and the rear shocks may be worn.(This is not unusual in New york City). (I had the alignment checked at about 25,000 miles...not by a GM dealer...it was put back to factory specs.) Both of these conditions would have caused premature tire wear, and possibly the Stability Control System light to come on. After I had the "new" tires installed, the light did not come on again and the car drove and rode as smoothly as it did when it was new. I did not re-align the front end nor did I replace the shocks as I turned in the car with 35,400 miles on it. If I had kept the car, I would have performed both of these as I now feel both of these conditions were contributing to the malfunction.

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