Investigations


NHTSA IDManufacturerDate openDate closeSubjectRecall campaign
PARKING BRAKE
PE03057GENERAL MOTORS CORP.12/08/200304/09/2004PARKING BRAKE FAILURE
 Odi opened pe03-057 to assess parking brake ineffectiveness in the subject vehicles.these vehicles are equipped with four wheel disc brakes that incorporate a single-shoe drum-in-hat parking brake independent of the service brakes.complaint and warranty data indicate that the parking brake linings tend to wear out early in the life of the vehicle (at an average of 24 months in service), reducing the parking brake system's torque below that needed to immobilize the vehicle.gm has attributed this accelerated wear to foreign material intrusion and a failure of the brake shoe to properly self-center within its brake drum.effective with the start of my 2003 production, a newer reduced force hold-down clip was introduced to facilitate brake shoe disengagement from the drum surface.this part is also available at the service level for the my 1999-2002 vehicles.gm has indicated that the paking brake is intended to operate in conjunction with the transmission to immobilze parked vehicles, and that in many cases, accelerated parking brake lining wear is caused by rough use, vehicle modifications, and driving with the parking engaged. odi has upgraded the preliminary evaluation to an engineering analysis to gather further information concerning parking brake usage factors and the circumstances surrounding the seventeen reported vehicle crashes.

Consumer Complaints


Fail datemilesoccurencesPurchase date
PARKING BRAKE
08/23/200578000
 Parking brake is not holding and we have used it maybe 2 or 3 times. abs and brake lights stay on all the time. we have a 2001 chevrolet silverado 1500. i have seen many complaints about this on the iternet. can you not do something about these complaints
07/30/200315000107/31/2001
 Emergency (parking) brakes has never worked on my vehicle. when new i noted that it would go completely to the floor when engaged but assumed that it was simply different than past emergency brakes. however, i discovered long ago that, when engaged on a hill it simply had no effect! given that i have an automatic transmission i do not bother to engage it but, if ever needed in an emergency situation it would be completely useless. it is clearly a faulty design. chevrolet should have done something about it for all owners, not just those with manual transmissions.. *tr
03/24/2006400002510/28/2000
 Parking brake failure. gm put out recall for manual transmission vehicles but not auto trans. truck would not pass state inspection. took to dealer and paid to have it fixed. *jb
10/30/2006100000110/01/2002
 The parking brake is worn off. it did not pass the state inspection and now it will cost me about $350 dollars to get something fix that gm should recall. not being able to use the parking brake could of being very dangerous to my family in case needed. thank god this did not happen. please report this to gm and have them do something. thanks. *jb
06/04/2004560001
 Brake rotors corroded completely , emergency brake rusted completely , massive rust under truck , brake calipers rusted , power steering went out ,a.c. fan went out, short in wiring in door locks and windows, this a 2001, 56,000, miles, low mileage truck to have so many problems, the dealership said they had not seen this problem before, i looked it up, there is rusting and total corrosion of the brake rotors in many different states, over along period of time, even when the rotors are replaced they are rusting completely again. chevy is selling an expensive truck, and then profiting again on the replacement of the defective parts, and making a premium profit on that too.! they are not bothering to fix a defect that has been going on for a long time. very disgusted with the chevy silverado, my first and last chevy. *nm
11/09/200562562101/01/2001
 Parking brake failure on 2001 chevrolet 1500 series pickup. consumer reports magazine published a safety alert for this same problem stating that 1999-2005 models are at danger because of friction that could make the parking brake ineffective. our understanding is a recall has been issued for the manual transmissions, but not for the automatic transmissions which is what we have. we took one of the trucks from our business fleet (comprised of 15-20 chevrolet 1500 series pickup trucks) to be inspected today and it failed because of this parking brake failure. there was another gentleman at the inspection place with a chevrolet 1500 truck while we were there, and his truck failed for the parking brake also. we contacted moritz chevrolet, a local dealership, and they stated that they see large #s of vehicles come in for this same problem. the auto inspection establishment said they same thing - they fail countless numbers of 1999-2005 chevrolet 1500 pickup trucks for parking brake failure. it is going to cost us $200 to have this repaired. chevrolet clearly knows that there is a problem, and a recall needs to be issued at once. this is a safety hazard. *jb
08/24/200421000205/24/2002
 Parking brakes on a 2001 chevrolet silverado. i have 42000 miles and this is the second time the parking brakes wore out prematurally. have never been abused and use normally. the first time around at 21000 miles. parking brakes linning are worn beyond recommended thickness and cannot hold the vehicle. first time i replaced the linnings and will again have to place the linings. never told about premature lining failure when i purchased the first set.i don't belive parking brake lining should wear out at 20000 miles.*ak
01/01/200220000101/01/2001
 Parking brake hasn't worked since around 20000 miles, brake will depress, but won't keep truck from rolling. loud piston slap, knocking from engine mostly when engine is cold, goes away after warmed up. this is a z71 and the 4 wheel drive buttons do not work all the time when trying to put into 4 wheel drive. power mirrors don't work a lot of the time. at least one of the front running lights stay burned out most of the time. truck is out of warranty now but these problems have existed for a long time. a lot of other trucks of this same model have all the same problems. gm should address these problems and make them right at no cost to the consumer.*ak
01/01/200230000102/01/2001
 Parking brake does not hold. about a year to 18 months after the vehicles (2001 z71 cheverlet and 2002 surbuban) the park brake fails to hold. as time went on, the parking brake pedel needed to be depressed lower and lower until the brake would no longer hold the vehicle.*ak
09/08/200340000111/05/2000
 Chevrolet has a defective clip that is on thier emergency brake system and they know this but are not doing a recall to try and solve this problem. there is a technical service bulletin out on this problem but they still are not accepting fault and are making the consumer pay for thier mistake. after repeated phone calls to them i did get them to agree to pay for half of the fix on my 1/2 ton pick-up. my question is why is nothing being done about this problem? it is not so much the money i had to put out of pocket but the fact they know there is a problem on all of thier trucks made after 1999.*ak
06/26/200354500106/06/2001
 My 2001 chevrolet c1500 silverado is two years old and due it's first state inspection. the truck would not pass because the emergency brake would not stop the truck, even sitting still at idle. the emergency brake has never been used, but both emergency brake shoes were worn out and one rotor/drum was ruined. *ak
PARKING BRAKE - DRIVELINE - HYDRAULIC
10/01/200112000211/28/2000
 Nothing but problems with truck. first was the slip yoke in the drive shaft, felt like tranny was slipping from take off at start position. replaced under warranty.*ak anti-lock brakes would come on with every stop. usually at very slow speeds, causing truck to exceed 5-10 ft further than it should have. had front wheel bearing replaced, fixed for some time doing it again. also in the mean time, had to have all brakes and rotors replaced. brake system is awful. this could cause accidents. also, has cold engine knock, very loud knock, not a normal knock. something isnt right with this. done this since a little over 20,000 miles, worse when temperatures outside are low. had to have 4x4 switch on dash replaced. kept getting service 4wd unit. out of warranty at this time. i know of at least 4 other with all same problems. still nothing done with gm, something should be done. especially with the brake system. safety hazard.