I was driving on a two-lane road at about 30 mph when a sudden vibration occurred from the right front of the vehicle. I found that when I tapped the brakes the vibration would stop for a short time before recurring. I then noticed a severe decrease of braking efficiency. After I took the vehicle to the repair shop I was told that the right front brake disk had broken--and the "hat" part of the casting had separated from the disk part--resulting in the vibration and loss of braking power.

- Zenda, WI, USA

While driving at 55 mph consumer pulled out of the road when hearing a loud noise coming from the front end. The right passenger side brake rotor broke. Mechanic replaced the rotor. The consumer was concerned about the left side.

- Fontana, CA, USA

1999 Chevrolet Suburban. As of 4/28/04 with only 47K miles, A/C compressor defective & dealer will not replace in spite of several attempts to repair before warranty expired, as soon as 3 months after purchase in October of 2002. Replaced brakes 3 times at our expense. Dealer (bob neill Pontiac in winston-salem, nc refused to repair under warranty), steering problems, attempted repair, again at our expense. Replaced door locks and window mechanism's at our cost. Total piece of junk. Will never buy from bob neill Pontiac in winston-salem, nc again & will never buy another GM product. Just bought entire fleet (6 trucks) from Chevy. Dealer N kernersville, nc). Waiting with baited breath for the entire lot to break down. Completely disgusted with GM.

- Winston Salem, NC, USA

Brake rotors have been grounded three times, and have been changed once. Dealer has been contacted.

- Thayne, WY, USA

Brake rotors warped causing reduced braking power and reduced steering control.

- Billings, MT, USA

While in traffic started to apply brakes, and brakes started to make loud noises, squealing and grinding. Was able to stop vehicle. Had contacted dealership, who could not look at vehicle. Took to local service station, and mechanic indicated problem was brake pads which were worn out and rotors which were shot. Other set of rotors needed to be grounded down.

- Hyde Park, NY, USA

The hub on the front left brake was warped causing a grinding noise. Nlm

- Bella Vista, AR, USA

The problem is continued brake shutter and uneven braking. Uneven rotor wear.

- East Tawas, MI, USA

Rotors heat cracked so replaced--might be manufacture's defect.

- Chantilly, VA, USA

4/00 rotors warped..dealer turned them..11,900 miles happened again..dealer service writer chris says I'm crazy and those rotors do not warp..needless to say I was not wanted in their dealership ant longer..brought it to romono Chevrolet, they turned rotors again! brought it back again for same prolem, now they tell me they don't feel the pulsation. I waited a month, brought it back today at 16,500 miles. We'll have to see what happens today..I want rotors and pads changed, they will probaly turn them for the 3rd time which is unsafe!!

- Liverpool, NY, USA

We have returned our Suburban three times already for brake problems. The first at about 13K miles one rotor was replace because it was warped and the other was cut. At about 23K miles both rotors were found to be warped and replaced. Now at 30K miles the rotor were found to be warped and they were cut. Unpon bringing the Suburban home from the dealer the brakes almost failed completly. Takes four times the normal distance to stop. The next problem is a valve tap that has been there since the first day of ownership. There is a tremendous amount of valve tapping when the vehicle is first started it lasted about 15 to 20 second. It was return 2 or 3 times to the dealer before they admitted hearing it, then the response was it was normal. There has been a valve tap that has been there from the beginning even after the vehicle has reached operatiing temp. Every time it was brought back in for warranty work the valve tap was mentioned. No one can never hear it. At 30K miles they think they hear it now and the fix for a mechanical lifter noise is programming I am being told. My concern is the warranty runs out in 6K miles and the motor has had this problem from the first day. What is a person to do?

- Sparta, NJ, USA

Premature wear of brake rotors. Dealer has repaired vehicle several times.

- Los Vegas, NV, USA

Brake rotors warped but dealer insists they are fine at 5000 miles. Now at 6500 miles and they are worse. Air conditioner pump seals blown out. Entire suspension has been disassembled by dealer due to excessive creaking, 3 times, to no avail, still excessive creaking. Looking for lemon law procedure, dealer has been no help.

- Anaheim, CA, USA

When applying brakes at highway speed, the front brakes will create a violent vibration due to defective rotors that cannot withstand heat generated by brakes, causing rotors to warp. Manufacturer has issued tsb.

- Phoenix, AZ, USA