Pontiac Grand Prix grinding brakes problems

Filed Oct 5, 2015 · Acceleration, Brakes · 70,000 miles · IN

I first noticed that when turning there was a grinding noise. I took it to a shop and was told the front passenger control arm needed replaced. I recently took my car to the dealership for the ignition switch recall and found out that the speed harness needs replaced and that is what's causing the light for ABS/tc to be serviced. I have researched both of these issues with this specific vehicle and it appears to be a widespread issue. What constitutes a recall?

Filed Apr 13, 2015 · Brakes · 153,000 miles · AR

I recently purchased a used 2007 pontiac grand prix gt sedan. Shortly after driving the vehicle off of the lot, I went to turn onto a street traveling roughly five to seven miles per hour, and the traction control and ABS sensor light both registered across the system information screen and noted that I needed to service the ABS system and traction control system. I immediately took the vehicle to my mechanic who suggested that we start looking online to see if there were a recall for this issue. Afterlooking online, we noted that multiple others have experienced the exact same issue. Most of the fixes that we have seen that others have tried we have also tried, but nothing seems to fix the issue. Now the traction control and ABS system light are on 90 percent of the time and it has become an issue with the brakes. At approximately 12 a.m. This morning, I tried to stop the vehicle and it would not respond to the brakes. There was a grinding sound coming from the right side of the car, especially when I tried to turn the wheel to the left very hard to avoid an accident. I was able to get the car to stop by hitting the emergency brake. At the time of the incident both the traction control and ABS lights were not registering on the screen. Now the service engine soon light has started to appear every time I start the car. This is the fifth or sixth time in the last month that the brakes have not responded. My mechanic and I are both at our wits end trying to figure this issue out. It is unsafe for me to drive the vehicle as I never know when the brakes will not respond. We are looking into replacing the ABS module at this point as a very last resort, but it is extremely expensive.

Filed Mar 23, 2015 · Brakes · 80,000 miles · MO

Tl* the contact owns a 2007 pontiac grand prix. The contact stated while driving various speeds, the brake pedal was depressed with a pulsation and a loud grinding noise and the ABS and traction control warning lights illuminated. The vehicle was taken to the dealer three times. The technician replaced both the front and rear rotors and front and rear brake pads on different occasions. The failure persisted after each repair was performed on the vehicle. The manufacturer was notified. The approximate failure mileage was 80,000.

Filed Jun 23, 2012 · Brakes · 156,000 miles · MD

I was pulling out to cross busy four lane. A car coming from righe switched lanes and turned in front of me. I applied brakes smartly but did not apply hard enough to slide or squeal tires. After that I continued about a mile and started to brake for a stop light. Brakes felt as if some air was in system (not fully bled). Next I applied again for another light. Condition worsened. By the time I returned to my residence, about three miles away, I had to use emergeny brake. All fluid was gone from master cylinder reservoir. I placed car on jack, refilled reservoir and pumped brakes, and found that about 2 to 3 inches of brake lines directly under drivers floor, on the sloped part going upward to master cylinder ,were severely corroded and had failed (pin hole). Line above looks new and line below the area looks new. Also the car is very clean and non rusted on bottom. This car has been pampered since we purchased from dealer at 18,000 miles. This is clearly a materials issue as the part that is corroded is in a sloped area which would naturally drain off any moisture that collects. Additionally fuel lines and adjacent to the brake lines are also corroded. I suspect that lines were damaged when originally bent, probably peircing the outer corrosion coating. This should be covered by a recall. I searched for about five minutes on line and found five complaints that exactly duplicate my problem. This failure mode bypasses the safety design of the master cylinder which is designed to keep either front or rear brakes working if the other fails. It is catastrophic and will (or probably has) caused injury or death. Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6)

Filed May 3, 2012 · Brakes · 90,000 miles · FL

Tl* the contact owns a 2004 pontiac grand prix. The contact was driving 15 MPH when a grinding noise emitted after the brakes were depressed, and the vehicle lunged forward abnormally. The contact believed the failure was caused by the ABS. The vehicle was not taken to the dealer for diagnostic testing nor was the manufacturer notified of the failure. The vehicle was not repaired. The failure mileage was 90,000 and the current mileage was 90,200. The consumer stated gm was notified about the hydraulic ABS failure. Updated 05/21/12

Filed May 17, 2011 · Engine, Fuel system · 180,000 miles · NE

The gas tank is not sealed in the middle allowing gas and fuel vapor to leak from car! All the sway bar on the driver side has separated due to the rack and pinion, car has no sound when turning to the right but if you try and turn the car to the left it is as if the power steering is going out and make a loud grinding noise and is getting very difficult to turn left, also the windshield wiper do not work proper and cause problems in the rain, the key get stuck in the ignition all the time,feel as if motor is twisting or moving forward, will be contacting pontiac due to recalls and problems arising.

Filed Apr 27, 2011 · Transmission · 65,000 miles · PA

My car slams into gear from a dead-stop. It grinds very loudly when then tcc is applied. Shifts hard and shakes very violently, sometimes to the point where it is almost undrivable. Gm dealer refuses to acknowledge the problem because they don't want to fix it. They claimed the grinding noise is a tick or rattle caused by timing chain for the displacement on demand when the engine goes from 8 to 4 cylinders. The tsb only states it would make the noise when going from 8 to 4, not 4 to 8. My car only makes the noise when I'm on the throttle, so it would not be going into 4 cylinder mode. Gm are a bunch of lying dirtbags who don't want to fix the problems they cause. They compromised the reliability of this transmission to make it shift smoother. I'm a member of an online forum of just the ls4/4t65e-hd fwd cars and there are over 138 people with these cars who had or are having transmission problems/failures. Why hasn't there been some kind of recall yet? This is certainly a big enough problem to warrant a recall!

Filed Feb 18, 2011 · Transmission · 64,000 miles · PA

Transmission shudder at cruising speeds. Delay when leaving from dead stop. Car slams into gear hard. Grinding/crushing sound.

Filed Sep 20, 2010 · Lights · 54,190 miles · FL

Tl* the contact owns a 2007 pontiac grand prix. The contact stated while driving 30 MPH, the headlight failed independently. The contact attempted to turn the lights back on and as the switch knob was turned, there was an unusual grinding coming from the knob. The manufacturer was not informed of the failure. The failure occurred intermittently. The vehicle was not repaired. The failure mileage was 54,190 and the current mileage was 54,227.

Filed May 6, 2010 · Steering · 40,000 miles · WA

Tl* the contact owns a 2007 pontiac grand prix. The contact stated when traveling at relatively low speeds, the steering wheel would exhibit an unusual grinding noise and would become increasingly difficult to steer. The contact stated the rack and pinion were replaced previously under warranty but the failure persists. The vehicle was not repaired further. The failure mileage was approximately 40,000 and the current mileage was 47,000.