The contact owns a 2004 Chevrolet Colorado. While driving between 20 to 50 mph, the ABS activated without the brake pedal being depressed. The ABS warning light illuminated and the broadcast system indicated that there was an ABS error. The dealer would not repair the system because there was no recall. The ABS has been deactivated. The ABS is a part of the hub and sensor, and must be replaced as one unit. The ring is located between a thin piece of metal and water is able to enter because there is nothing blocking the open space near the sensor. The contact is aware of the design flaw and the safety risk involved. The ring dislodged and caused the ABS to actuate. The failure mileage was 50,000 and current mileage was 71,000. Updated 5/6/08 updated 05/06/08

- Olcott , NY, USA

The contact owns a 2004 Chevrolet Colorado. While driving 15 mph, the ABS light illuminated. If the vehicle exceeds 25 mph, the ABS and brake lights illuminate. The contact spoke with the dealer and they stated that nothing could be done. The current mileage was 77,890. Updated 04-07-08 the consumer stated when the ABS malfunctions, it feels as though he is stepping on the gas and brake simutanously.

- Sunbury, PA, USA

The contact owns a 2004 Chevrolet Colorado crew cab. While attempting to stop the vehicle from 45 mph the brakes began grinding metal to metal. This incident occurred twice. When approaching a traffic signal the contact had to pump the brakes in order to stop the vehicle. The dealer diagnosed the failure as the ABS, and stated that the repair could be performed if the vehicle was under warranty. After having the rear lower brake pressure repaired the ABS became inoperable. The right rear end would slide, grind, and produce a screetching noise. The contact stated that the failure caused a hit and run accident. The contact called the manufacturer to request financial assistance for the repair of the vehicle, but was unsuccessful. The contact received recall # 06V139000. The current mileage is 36,800 and failure mileage was 19,000.

- Sacaramento, CA, USA

- the contact owns a 2004 Chevrolet Colorado. The contact was driving 35 to 4O mph while attempting to stop the vehicle and the brakes made a sound like metal grinding on metal. While coming to a stop in 2006 she had to pump the brakes. As a result, there was no grinding, but the dealer said the anti lock brake system was defective. The dealer said that if she purchased a warranty they would repair the brakes at no cost to the contact. Once the contact realized how unsafe the vehicle was she stopped using the vehicle, andwas currently driving a rental vehicle. There were no recalls listed on NHTSA website related to this incident. The contact attempted to call the manufacturer, and was unsuccessful with her current request to gain financial assistance in the repair of the vehicle. The contact stated she received recall number 06V139000 onh April 26, 2006 concerning exterior lighting:brake lights:switch.

- Sacramento, CA, USA

: the contact stated the ABS warning light illuminated with the message; ABS traction fault. The brakes failed and the vehicle coasted through a stop sign at 10 mph. The vehicle was taken to the service dealer 3 times but was not repaired. The service dealer was waiting for parts. The manufacture was not notified.

- Streator, IL, USA

: the contact stated in wet weather while depressing the brake pedal at various speeds, the brakes locked causing the vehicle to suddenly stop. It was driven to the dealer who could not duplicate the problem.

- Xenia, OH, USA

Driver's side electrical button control pad inoperable at irregular and inconsistent instances. Upon pushing driver's side window electrical button, driver side window will not roll down. However, the driver's back, passenger front side, and passenger back side electrical keypad window buttons remain operable. Both the driver and front passenger lock/unlock electrical keypad buttons are inoperable. Upon turning off engine, removing key, exiting vehicle, closing all doors, and pushing the keyless entry lock and/or unlock buttons result in response from keyless locking mechanism. When key is left in ignition and engine running, upon pressing either the lock/unlock electrical buttons on the driver's door or pressing the keyless entry lock/unlock buttons result in a double "dinging" sound from the dashboard display but no other indication is produced from dashboard. Dealer response; customer copy invoice: Operate window, check connector on switch. Window operates normally, cannot duplicate customer complaint. ABS light will come on and stay for an indeterminate amount of time. Normal and correct operation of ABS dashboard display light indeterminate. Results in customer concern for safety of driver and all passengers relying on correct functioning of ABS brake system. Dealer customer copy invoice: Scan computer code C0040. Run flow chart, found right front hub and sensor had intermittent open circuit. Replaced right front hub and speed sensor. Upon starting vehicle to warm up engine in 40-50 degree Fahrenheit environmental conditions, inside manual heat-directional knob will not turn unless extreme pressure is applied. Dealer customer copy invoice: Compare knob operation with another Colorado tension knob is the same. Cannot duplicate customer complaint at this time. Total labor... 0.0 total parts... 0.0 total sublet... 0.0 total G.O.G... 0.0 total misc chg... 0.0 total misc disc... 0.0 total tax... 0.0.

- Benton, AR, USA

: the contact stated while driving at various speeds on rough roads the brakes grab and the vehicle slides. This happens intermittently. The dealer can not duplicate the problem therefore, no repairs have been made.

- Vale, NC, USA

1. ABS kept kicking in on low speed stops such as a simple stop at a stop sign. 2. result I was unable to stop when a truck stopped in front of me.

- Janesville, WI, USA

Standard braking was fine but when the consumer needed the ABS it did not work. In normal braking the wheels started to lock up and it released but it never reengaged. The ABS trouble light as well as a information center on his dashboard illuminated indicating a problem with the ABS. The vehicle was taken to the dealer who determined there was a problem with the front ABS sensor. The dealer didn't have the part to repair the problem. GM is pending the outcome of the investigation. GM indicated the faulty ABS would not have caused an accident at this time.

- Hatfield, PA, USA

While driving and upon trying to brake putting it three and then two the vehicle picked up speed when it should be slowing down. Took vehicle to the dealer, was told that they could not do anything. Also, called the manufacturer, and was told the same thing.

- Struthers, OH, USA

Vehicle has an on going problem with the brake dragging the vehicle when applied. Condition causes the vehicle to shimmy and extended braking distance. Vehicle been to the dealer on three separate occasions and could not locate the problem. Consumer took the vehicle to a repairs shop. The mechanic replace the ABS booster and the front pads. Feel free to provide any further information.

- Great Falls, VA, USA