Whenever the brakes were applied they would fail to operate properly. This would cause vehicle to have an extended stopping distance. Would have no warning. Taking vehicle to dealership to check brakes out. Consumer states that the brake lights did not come on at all.

- Centerville, OH, USA

I was informed by service personnel that they have seen several ABS controller failures. This is an expensive($800+)part to replace and there should not be a high volume of failures. The ABS system detected the failure before I started to drive. The nature of the failure permits the controller to continue to run even with the key turned off. It only stops when power is removed by crawling underneath the vehicle. If left running the module gets hot to the touch and eventualy runs down the battery.

- Ceresco, NE, USA

ABS motor runs after engine is shut off.

- Jeffersonville, OH, USA

ABS warning light came on. ABS system would not stop running after truck was shut off. Fuse was removed. GM dealer said system had to be replaced at a cost of $950. GM contacted; no response. Have spoken to two other people in my office who have same truck with same problem.

- Baytown, TX, USA

ABS pump does not disengage when ignition is off, motor continues to run. This is caused by water that splashes onto ABS system that is located behind left front wheel.

- Fountain Inn, SC, USA

ABS system has been failing since the time I purchased the vehicle. ABS engages when braking on rough surfaces causing vehicle to coast and not come to a stop. When ABS is engaged no control of braking or steering is available. Now on 10/10/01 I was pulling out of my driveway and I heard and felt a loud vibrating. I shut off the vehicle and the vibrations continued. I called the dealer service center at marquart and they said they knew what the problem was and that I needed to pull the fuse for the ABS or it would drain the battery. The service tech said that he has seen this happen quite a bit and replacement is needed. Well now I have no ABS and it is over $1,000 to fix. This is a known safety problem and needs to be taken care of by the manufacturer.

- Eau Claire, WI, USA

Check out my other listed complain on this site, the ODI id # is 745532. I'm just posting another complaint because I haven't heard a word from NHTSA regarding this issue. Silverado ABS modulators need to be recalled! they are getting water in them. There are numerious listing on this site regarding this issue. NHTSA needs to investigate this issue! it is ridiculous for consumers to take the hit on a failed, poorly designed piece of equipment. The more technology advances the more theses electronic units cost to replace. The direction we're headed in is that ten years from know when a electronic unit fails at a thousand miles over and out of warranty, it will have to sit in the driveway because the average american wont have the cash available to fix it. I had a ABS modulator fail at 54,000 mile, the unit would not turn off, even with the key out. I had to pull the fuse to stop it. The dealer would not do a xxxx thing about it and neither would GM. The dealerships are rteplacing alot of these units.that means there is a defect (poor design) with this unit. Anybody with this defect should get a new and improved unit for free regardless of warranty! I have a more descriptive explanation of the problem on this site, again the ODI id # is 745532. I'm an engineer and it pisses me off when a company hides behind closed doors when an issue like this arises. It pisses me off even more when a government Agency (NHTSA) that is suppose to protect the consumers saftey fails to contact me regarding this issue. I'm beginning to wonder if NHTSA actually read these complaints. I submitted ODI id 745532 five or six months ago, may be even longer than that and still no word. Any body that wants to contact me regarding this issue an email me at jabrant@email.sae.org.

- Oklahoma City, OK, USA

Actuator within ABS brake system malfunctioned, causing system to become inoperable.

- Salol, MN, USA

While backing vehicle out consumer heard a noise, vehicle cut off and still heard noise, consumer noticed ABS indicator light was on, looked under hood, and pulled ABS fuse out and motor stopped.

- Huntsville, AR, USA

After vehicle was turned off ABS motor continued to run. Consumer contacted local dealership, and was told to pull fuse for ABS motor. Upon pulling fuse, motor stopped running, but ABS light on instrument panel was still illuminating. Please provide any additional information / attachments.

- Twin Valley, MN, USA

After turning vehicle off ABS motor would continue to run. Consumer was instructed to pull fuse for ABS motor - which stopped motor from running, and caused ABS light on the instrument panel to come on. Dealership has not examined vehicle. Please provide any additional information / attachments.

- Barnesville, MN, USA

I was told at the dealership that this part (ABS module) has a very high rate of failure. The replacement part costs over $900.

- Aplington, IA, USA

Consumer stated he experienced ABS failure.

- Spring, TX, USA

When shutting off engine right away consumer heard a loud grinding noise. Called dealer, who stated that problem was ABS module that failed, dealer stated it was a known problem on 1999 models.

- Mason, MI, USA

The ABS brake system is a safety issue and I feel the price of $1000 to replace this system should be covered by Chevrolet.

- Rice Lake, WI, USA

Anti-lock brakes went out. Brakes wii stop vehicle, but anti-lock system is inoperable. Contact dealer, and dealer stated no recall.

- Picayune, MS, USA

Reporting ABS sensor failed, causing loss of ABS braking. Dealer notified, and informed consumer that vehicle was out of warranty, and ther ewas no manufacturer's recall on that part. Feel free to provide any further information.

- West Melford, NJ, USA

The brakes in other trucks in this area was the same problem. The anti-lock brake quit working around 60,000 miles.

- Avery, TX, USA

When engine is shuit off the ABS motor continues to run.

- Chattanooga, TN, USA

While applying brakes ABS light came on, and a loud hmming sound started, even after the vehicle switch was turned off. Sound continued until battery cable was disconnected. Dealer was notified. Feel free to provide any further information on this mattter.

- Oakwood, VA, USA