Brake Antilock Wheel Speed Sensor problems of the 2002 GMC Sierra 1500

While trying to park my vehicle in a parking lot the brakes anti-lock system engaged. I was pulling forward to back into a stall. There was a person walking down the parking lot some distance in front of me. As I applied the brakes to stop going forward and start to back the abs system engaged and I could not stop. The gentleman in front of me thought I was going to hit him, and quite frankly I thought that I was also. The pavement was dry, the temperature was about 62 degrees. This is a dangerous situation. There is nothing wrong with my brakes at higher speeds. I have read some things about issues with the abs speed sensors on the wheels. If this is the case gm needs to recall all of these vehicles before there are serious accidents or deaths!!.

Vehicle brake pedal goes to the floor at low speeds 5-10mph during stop. The abs light does not illuminate. Very close to serious accident (s). This is not a traction or lack of traction issue. This seems to be wheel speed sensors that continually require replacing. Rear calipers on this vehicle with less than 65k miles have been replaced twice. Brakes have been a problem since new. Brake lines rotted with less than 60k miles on vehicle and gm refused to consider this a defect which it was and is.

I have had to replace front wheel abs speed sensors and related parts twice on my 2002 GMC Sierra 1500. The first time was in 2006, the second just this week. The truck has just over 86000 miles. The abs engaged below 10 mph. I almost hit other cars or objects several times when this occurred. Speed sensors were corroded. Hub bearings were also replaced due to speed ring faults. It has cost me over $1500 both times to have this work done to make my truck safe to drive. My request for warranty coverage was denied.

1. Brakes were fully operational after the initial recall was completed (10/13/05). Recently, January 2010, my anti-lock brake system has triggered at low speeds under 10 mph causing my truck to not come to a complete stop. This is the same problems I was having prior to the initial recall. Releasing the brakes and reapplying the brakes have worked to stop the vehicle so far. 2. The failure happens about 1 in 5 stops depending on the speed of the vehicle. I have nearly hit several cars in parking lots, because of the slow speed during parking. 3. Gm had a recall 4 years ago on the wheel speed sensor (05v379000) all they did was clean and lubricate the unit. Not adequate enough, since I am having the same problem over again.

The contact owns a 2002 GMC Sierra 1500. The contact was driving approximately 5 mph in rainy weather conditions and pressure was applied to the brake pedal, followed by an activation of the anti-lock brake system. The failure occurred at extremely low speeds. The vehicle was taken to an authorized dealer who stated that the failure was contributed to severe corrosion in the anti-lock brake sensor. There was a prior recall repair under NHTSA 07e106000 (wheels:cap/cover/hub). However, the remedy failed to correct the safety related defect. The vehicle has not been repaired for the malfunction. The failure mileage was 34,000. The steering shaft was replaced. Updated 02/18/10.

* 3-may-vehicle taken in to dealer at 29 k mi for recall to inspect both front wheel abs speed sensors. Total inspection time approx 10 min, no repairs made. One possible braking incident occurred 3. 5 yrs earlier. * 24-Sep-08, 38 k front brake pads replaced, normal wear patterns. Both rear inner disk brake pads worn to metal and jammed, both rear outer pads little wear, both rear disks heavily scored and replaced. Vehicle has been used little for towing. Rear caliper nuts required an estimated 350+ lbs torque to loosen. * 31-Jul-09, 39 k near accident on hwy at low speed after very long stop at slow speed, then 3 mi later crash into concrete abutment occurred while parking at idle speed. Loud groaning heard fr engine compartment. Scan tool info by gm dealer indicated both front abs speed sensors were not sending a signal. Body repair to front $800 using used parts and excluding abs sensor replacement. * near total, reproducible brake loss occurs between approx 3 and 7 mph. Pressing harder on the brake pedal seems to lengthen the stopping distance. Headlamps dim when trying to stop at slow speed while the abs pump is groaning. * problem has yet to be corrected.

The contact owns a 2002 GMC Sierra 1500. While applying pressure to the brakes, the abs activated automatically and the vehicle jerked backwards. He took the vehicle to the dealer and they repaired it according to NHTSA campaign id number 05v379000 (service brakes, hydraulic:antilock). Immediately after the repair, the failure recurred and the vehicle was taken back to the dealer. They inspected the vehicle and stated that the passenger side front speed sensor was causing the failure. The speed sensor was replaced. The failure mileage was 36,769 and current mileage was 41,775.

The contact owns a 2002 GMC Sierra 1500. In October of 2005, the contact received a recall notice for NHTSA campaign id number 05v379000 (service brakes, hydraulic:antilock). He immediately scheduled an appointment to have the vehicle repaired. One year later, while attempting to apply pressure to the brakes at 5 mph, he felt a severe pulsation in the brake pedal. The dealer stated that both wheel speed sensors failed and had to be replaced at his own expense. The contact filed a formal complaint with the manufacturer. The failure and current mileages were 63,293.

Antilock brakes on 2002 GMC sierra truck activate for no reason at speeds of 5mph or less making the vehicle unsafe to drive. There was a recall on the sensors for this reason. I had my sensors "taken care of" and afterwards started experiencing this exact problem. I was told that the hubs are bad and this is why the anti locks are coming on. The sensors can not read the hub "correctly". The hubs, which are not a wear item, can be replaced for $1000. This is on a 2002 pick up truck with 46,000 miles on it and is garage kept. The hubs are a non wear item. Poor engineering is the culprit of this problem. The hubs should be replaced just like the sensors were. I was also told that on my GMC truck I cannot have the antilock brakes deactivated. As a result, I have to spend the $1000 to make my truck safe to drive. Probably 40,000 miles in the future I can replace the hubs again for $1000. $1000 to replace a non wear item. Antilock brakes are on a vehicle to make the vehicle safer. The antilocks on my GMC make the vehicle undrivable because of being unsafe. It should be possible to depend on your brakes to make you stop. With my vehicle I can't stop. This is not a wear item that is causing my problem. This is poor engineering! this should be covered under a recall, same as the sensors were covered under a recall. GMC will cover the sensors but not what the sensors are looking at.