Stop & go driving. ABS warning light comes on, traction control turns off, service traction control warning light comes on, brake pedal vibrates. All lights stay on while driving but reset after ignition turn off/ turn on procedure as described in owners manual. Next day, same lights & warnings. Take vehicle to dealer on 4/05/06. "computer checked system codes P1189, P0135, C1216 in system. Items tested per trouble tree. All items test good." No charge. Next day, 4/6/06, same warnings! take to dealer again without resetting warnings. No computer system codes showing, but no input signal from right front hub. Dealer replaces right front hub assembly - cost $479. Vehicle seems fine, until about 4/20 when brake pedal vibration comes back and warning lights come on and off. I turned off the traction control system and everything was fine for several days. On 4/25, with the traction system off, the pedal vibration was back and the ABS & traction control warning lights came on again. Went back to dealer. Although they told me the computer check show codes of C1222 and C1226, the codes do not show on my invoice. Code C1226 appears on NHTSA technical service bulletin item number 10017271 for my year and make of vehicle. However the service bulletin number 3500 is not know to the dealer as a valid tsb number, and they could not locate any information about it. Dealer "diagnosed and replaced ebtcm, and programmed system" - cost $697. I feel that by replacing the "brain" (ebtcm) and programming it, the dealer and/or the manufacturer may be covering up a potential safety issue with either one or both systems, ABS and traction control. I also feel that the dealer put me and my family in a dangerous position by failing to diagnosis any problems on the first visit, and then doing it again by making me feel safe by paying for a replacement part that has nothing to do with either system!

- Port Saint Lucie, FL, USA

Febuary of this year ABS traction sensor and brake system warning light illuminated. When backing iout of driveway or in normal driving at any given speed the brakes would grab and the traction active lights would illuminate. Took vehicle to a dealer, they said it was the left rear wheel hub sensor that failed, but could not duplicate problems consumer was having at that time. The dealer did not replace this, but did reset the sensor. When vehicle was driven away from dealer brakes still had the same problem. Within 24 hours the same issue was actived on the vehicle. Returneds to dealer, this time they replaced the left rear wheel hub sensor. About a month later this happened again. Did phone dealer about this. Consumer made another trip to the dealer, who noted again the left rear wheel sensor had gone bad again. Currently, car is again at the dealer for the 4th time for the same problem. The last occurrence was at a at stop sign, and when applying brake pressure discovered no brakes. Afterwards, immediately drove to dealership, where car is now. Also has had rotors resurfaced, and replaced rear brake pads as well during this process.

- Deatsville, AL, USA

Series of high cost repairs at my expense with no warranty: Driver infomation center has always been wrong and inaccurate and unfixable; at 24446 miles, replaced front rotors at my expense (; ac at 30825 worked intermittenly and battery light indicator stayed on and serpentine belt worn out (replaced with after market brand ($90) that has lasted perfectly at almost 80,000 miles; engine coolant leak notice by Chevrolet on July 2003 fixed on 7/30-03 at 58009miles; at 34607 vibration from intermid. Steering shaft and bushing replaced ($60); vibration back at 75,000miles and they would not fix it; chev diagnosis on 7/8/04 for left rear wheel speed sensor needs left rear wheel hub assembly (ABS brakes will not work and not fixed, $700) and turn signals work intermittenly (not fixed) and ac compressor leaking (not fixed, $900), and driver seat power seat heater defective (not fixed, $230).

- Camdenton, MO, USA

While applying the brakes pedal vibrated, resulting in less braking power due to ABS braking system failure. Dealership was aware of the problem because vehicle was towed to dealer for the same problem twice.

- Hiram, OH, USA

No summary listed for avbove vehicle.

- Lancaster, CA, USA

Engine check light comes on but no codes show up, car engine quits after puting in gear(reverse). Steering and brakes quit and emergency brake used to stop.

- Flowery Branch, GA, USA