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Buick Rendezvous, SUV
#2347 of 2539 Problem with Rendezvous Body Control Module
May 09, 2011 (8:18 pm)
Hello All! My mother has a 2002 Buick Rendezvous CXL. It's been having some problems--first, the battery wouldn't hold a charge, and the car would die. Then the windows stopped working, and the locks and sunroof will only work intermittently. The battery light is always on, even when the battery has been charged. The 'service engine soon' light is always on as well.
Yesterday, she took the car in, and she was told that the problem is with the body control module. Apparently, this has been happening to a lot of people, but GMC is not issuing a recall. The price to fix it is $700.
Does anyone have experience with this issue? My mom is a senior citizen on a fixed income, and really cannot afford such an expensive repair.
#2348 of 2539 Re: Problem with Rendezvous Body Control Module [julieamis]
May 10, 2011 (5:06 am)
You can do it yourself pretty easily. The BCM is about $100 new and it's behind the inside fusebox. I replaced mine and then took it to have it programmed for around $60 if I remember right. They have to get the programming from the dealership but usually you can find a local shop that can do that. Just call around. My total repair was under $200. Hope that helps.
#2349 of 2539 Re: Problem with Rendezvous Body Control Module [julieamis]
May 10, 2011 (5:08 am)
Take it to a local small garage she trusts first. Or someone handy with cars. There is a connector, C305, located under and just behind the drivers seat. The connector runs from outside of the car, to inside the car. It may have gotten moisture into it. Needs someone to inspect it for water damage/penetration. If wet, dry it all out thoroughly, and test the vehicle. This is easy/cheap and should be done before BCM replacement.
Another thing is that GM knows that the very early Rendezvous BCMs had issues. Someone needs to politely but firmly ask for the Service Manager, explain that you know the 2002 BCMs had problems, and that you'd like GM to help with the cost of the repair. You have a 50/50 chance of getting help if you ask nicely, and sound like you know what you're talking about. By 2003, the Motorola made processor was improved and internal BCM problems are rare after that, its usually connector problems 2003+.
#2350 of 2539 Re: Problem with Rendezvous Body Control Module [julieamis]
May 10, 2011 (8:22 am)
Hhmm I would wonder about that diagnosis a bit. If the battery light is always on it sounds more like a charging issue. The electronics (including BCM) can be quite sensitive to improper voltage and due crazy stuff if its not up to snuff. I might be more inclined to check cable connections and have a reasonablt long charging system check to ensure there is not an alternater issue.
May 12, 2011 (9:35 am)
I'm starting to have a problem with the brakes on my 04 FWD rendezvous. When i take a slow turn, like turning into a parking spot or onto my street, it feels like the ABS is coming on. It has happened once when coming to a straight stop at a light. The cement is dry and it only happens occasionally. Does anyone have an idea of what could be causing this? Thanks
#2352 of 2539 let's diagnose it
May 12, 2011 (9:59 am)
Let's see if we can't narrow it down first.
Find an empty parking lot. Do the low speed turn to recreate the noise. Now, VERY carefully, accelerate back up to 20mph or so, take your foot off the gas and put the shifter into neutral (making sure you don't go into R or P). Then bring the car to a stop in the exact same way that caused the noise.
The reason to do this is to disconnect most of the drivetrain from the wheels during the stop. If you still get the noise, it is probably brake or bearing related.
Do you have any warning lights on? If ABS was malfunctioning I would expect an ABS light.
Do you feel any pulsation in the brake pedal when this is happening or is there only a stuttering feel in how the car stops?
#2353 of 2539 Re: let's diagnose it [bxd]
May 12, 2011 (10:31 am)
I'll have to do the parking lot test tomorrow. But I do feel pulsation in the brake pedal when this is happening. It's the same feeling as if i were trying to stop in snow and the ABS came on. The ABS light has not come on and i thought that would come on if the problem was with the ABS.
#2355 of 2539 Right front side wheel squeaks when driving?
May 21, 2011 (11:24 am)
I have a 2003 Buick Rendezvous CX. I just noticed yesterday that it is making a squeaking sound from the right front, but only when the wheels are rolling. It almost sounds like a metallic shaking sound, almost like the sound a salt shaker makes when shaking salt out. That's the best way for me to describe it. The sound stops as soon as the car comes to a complete stop. I have also noticed that the sound changes a bit when I apply the brakes and it doesn't make the sound when I make a right turn. I searched all night last night trying to find a solution to the noise but didn't see anything that was caught my eye. So far I've read it could be a wheel bearing, CV joint, or the brakes indicating excessive wear. Thinking more like a wheel bearing?? What do you think? I'm desperate to get this thing fixed before I have to travel out of state next weekend. Thanks!
#2356 of 2539 Re: Right front side wheel squeaks when driving? [mkp53081]
May 22, 2011 (11:29 am)
The brake wear sensor metal tab can cause a sound like what I think you're describing. And it disappears when brake pads are applied. It also will change when turning because of a little bit of movement in the wheel bearing affecting the contact between the pad and the rotor.
Let's hope for the easiest.
How many miles on this vehicle?