Investigations
| NHTSA ID | Manufacturer | Date open | Date close | Subject | Recall campaign | |
|---|---|---|---|---|---|---|
| SERVICE BRAKES, HYDRAULIC | ||||||
| PE04004 | GENERAL MOTORS CORP. | 01/08/2004 | 04/30/2004 | HYDRAULIC PUMP SHAFT FAILURES | ||
| The preliminary evaulation is being upgraded.during the ea odi will limitits investigation to only those vehicles equipped with a hydro-boost system, which provides power assist to the braking and steering sytems.vaccuum brake booster vehicles are excluded.odi hasexpanded the scope of the ea to include model years2003 and 2004, asduring the pe, odi learned that the hydroboast pumps were modified in febraury 2004.therefore,odi has expanded the scope to include the additional model years.odi's is concerned because thisisa sudden failure that affects two critical systems of the vehicle, brakes and steering, at the same time.the ability of the operator to handle the dual failures is a concern. further, these vehicles tend to be work vehicles, with some over 10,000 pounds gvwr and many equipped to pull large trailers.dual failures of heavily loaded vehicles and vehicles pulling trailers further increases the safety risk.odi plans to conduct testing to quantify the braking and steering performance degradation and the impact on safe vehicle control, when a hydroboast pump fails. | ||||||
| SERVICE BRAKES, HYDRAULIC - POWER ASSIST | ||||||
| EA04012 | GENERAL MOTORS CORP. | 04/30/2004 | 02/28/2005 | HYDRAULIC PUMP FAILRES | 05V005000 | |
| Gm is conducting a recall on all subject vehicles build between may 1999 and october 14, 1999.significant changes were incorporated into production in early october 1999, and vehicles built after that date have lower warranty failure rates.the complaint and warranty data appear to support the effectiveness of these changes. gm made additional changes in november 1999, february 2000, may 2001, and february 2004.odi will continue to monitor this problem and will take further action, if warranted, in the future.for further technical details see the attached engineering analysis report. | ||||||
| PE04004 | GENERAL MOTORS CORP. | 01/08/2004 | 04/30/2004 | HYDRAULIC PUMP SHAFT FAILURES | ||
| The preliminary evaulation is being upgraded.during the ea odi will limitits investigation to only those vehicles equipped with a hydro-boost system, which provides power assist to the braking and steering sytems.vaccuum brake booster vehicles are excluded.odi hasexpanded the scope of the ea to include model years2003 and 2004, asduring the pe, odi learned that the hydroboast pumps were modified in febraury 2004.therefore,odi has expanded the scope to include the additional model years.odi's is concerned because thisisa sudden failure that affects two critical systems of the vehicle, brakes and steering, at the same time.the ability of the operator to handle the dual failures is a concern. further, these vehicles tend to be work vehicles, with some over 10,000 pounds gvwr and many equipped to pull large trailers.dual failures of heavily loaded vehicles and vehicles pulling trailers further increases the safety risk.odi plans to conduct testing to quantify the braking and steering performance degradation and the impact on safe vehicle control, when a hydroboast pump fails. | ||||||
| SERVICE BRAKES, HYDRAULIC - POWER ASSIST - HYDRAULIC | ||||||
| PE04004 | GENERAL MOTORS CORP. | 01/08/2004 | 04/30/2004 | HYDRAULIC PUMP SHAFT FAILURES | ||
| The preliminary evaulation is being upgraded.during the ea odi will limitits investigation to only those vehicles equipped with a hydro-boost system, which provides power assist to the braking and steering sytems.vaccuum brake booster vehicles are excluded.odi hasexpanded the scope of the ea to include model years2003 and 2004, asduring the pe, odi learned that the hydroboast pumps were modified in febraury 2004.therefore,odi has expanded the scope to include the additional model years.odi's is concerned because thisisa sudden failure that affects two critical systems of the vehicle, brakes and steering, at the same time.the ability of the operator to handle the dual failures is a concern. further, these vehicles tend to be work vehicles, with some over 10,000 pounds gvwr and many equipped to pull large trailers.dual failures of heavily loaded vehicles and vehicles pulling trailers further increases the safety risk.odi plans to conduct testing to quantify the braking and steering performance degradation and the impact on safe vehicle control, when a hydroboast pump fails. | ||||||
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| SERVICE BRAKES, HYDRAULIC | |||
| 10/07/2011 | 145000 | ||
| Time 15:30. road conditions: dry. no clouds. incident: slowing to a stop at pedestrian crossing, the abs system activated at approximately 8 mph. vehicle failed to stop and lurched forward into pedestrians. condition replicates the abs failures in similar vehicles that are under recall; dealer indicated this vehicle was not part of recall but has same issue. | |||
| 08/30/2011 | 90000 | ||
| Tl* the contact owns a 2000 chevrolet k3500. the contact stated while driving 10 mph, he applied the brakes and the anti lock brakes engaged. the vehicle was not taken to dealer to have the failure diagnosed or repaired. an authorized dealer was notified and the contact was informed that the vehicle was not included in the recall associated with nhtsa campaign id number 05v379000 (service brakes, hydraulic:antilock). the failure mileage was 90,000. | |||
| 08/30/2011 | 90000 | ||
| Tl- the contact owns a 2000 chevrolet k3500. the contact stated while driving 10 mph, he applied the brakes and the anti lock brakes engaged. the vehicle was not taken to dealer to have the failure diagnosed or repaired. an authorized dealer was notified and the contact was informed that the vehicle was not included in the recall associated with nhtsa campaign id number 05v379000 (service brakes, hydraulic:antilock). the failure mileage was 90,000. rvk | |||
| 08/30/2011 | 90000 | ||
| Tl-the contact owns a 2000 chevrolet k3500. the contact stated that while driving 10 mph, he applied the brakes and the anti lock brakes engaged. the vehicle was not taken to have the failure diagnosed or repaired. an authorized dealer was notified and the contact was informed that the vehicle was not included in the recall associated with nhtsa campaign id number 05v379000 (service brakes, hydraulic:antilock). the failure mileage was 90,000. sm. | |||
| SERVICE BRAKES, HYDRAULIC - ANTILOCK | |||
| 02/22/2008 | 58000 | 1 | 04/01/2001 |
| Tl*the contact owns a 2000 chevrolet k3500. while driving approximately 30 mph, the abs activated and caused the vehicle to continue moving when the brake pedal was depressed. the manufacturer stated that his vin was not included in nhtsa campaign id number 05v379000 (service brakes, hydraulic: anti lock). the vehicle has not been repaired. the failure and current mileages were 58,000. updated 03/12/09. *lj updated 03/13/09. *jb | |||
| 06/01/2005 | 67700 | 3 | |
| Dt: problems began about march 2005, with anti lock brake system. front brakes are grabbing, and calipers stay shut. when driver hits the brakes hard calipers lock. and when making turns a noise is heard, a grinding noise. in last 4 months brakes were replaced twice. extended stopping distance is caused when this occurs. no warning lights come on, after removal,the pads were chewed up. not worn, but damaged. owner replaced brakes. *ak | |||
| 07/16/2002 | |||
| While driving, and if vehicle hit a bump anti lock brakes will activate, causing vehicle to pulsate. dealer notified. *ak | |||
| 03/09/2000 | 08/31/1999 | ||
| Happened to be turning around in a parking lot, pulled out into the highway with bumper to bumper traffic, felt power steering jump. then, there was no power steering or brakes, even at a low speed 5mph. the only way to stop vehicle was with the emergency brakes. *ak *ml | |||
| SERVICE BRAKES, HYDRAULIC - FOUNDATION COMPONENTS | |||
| 07/03/2001 | 2 | 02/23/2001 | |
| The drivers side front brakes squeak and the pedal feels like it is loosing vacuum. nlm | |||
| 03/27/2000 | 5 | 01/01/2000 | |
| Rear brakes were excessively wearing out every 3-4,000 miles. brake pedal would go to floor. would have no rear brakes when they were applied. had an accident due to lack of rear brakes, on one occasion dealer stated that the rear brakes were metal to metal, the brake pads were scorched, master cylinder was replaced, and the brake proportioning valve was replaced. contacted manufacturer & informed consumer that vin indicated a tow truck, but vehicle was not heavy enough to be tow truck. manufacturer could not give explaination for labeling of tow truck. it could not be used as a tow truck.brakes would continue to wear out due to not being heavy enough, according to manufacturer's explanation. *ak consumer is requesting a fix to this dangerous problem or a pro-rated replacement of the vehicle. *slc | |||
| SERVICE BRAKES, HYDRAULIC - FOUNDATION COMPONENTS - DISC - CALIPER | |||
| 06/01/2005 | 67700 | 3 | |
| Dt: problems began about march 2005, with anti lock brake system. front brakes are grabbing, and calipers stay shut. when driver hits the brakes hard calipers lock. and when making turns a noise is heard, a grinding noise. in last 4 months brakes were replaced twice. extended stopping distance is caused when this occurs. no warning lights come on, after removal,the pads were chewed up. not worn, but damaged. owner replaced brakes. *ak | |||
| SERVICE BRAKES, HYDRAULIC - FOUNDATION COMPONENTS - DISC - PADS | |||
| 06/01/2005 | 67700 | 3 | |
| Dt: problems began about march 2005, with anti lock brake system. front brakes are grabbing, and calipers stay shut. when driver hits the brakes hard calipers lock. and when making turns a noise is heard, a grinding noise. in last 4 months brakes were replaced twice. extended stopping distance is caused when this occurs. no warning lights come on, after removal,the pads were chewed up. not worn, but damaged. owner replaced brakes. *ak | |||
| 12/10/2000 | 10000 | 7 | 10/10/2000 |
| I purchased a new 2000 chevy 3500 4 door dully. it now has 67,000 miles. the truck has worn out seven sets of brakes and at this moment it needs the 8th set plus the front rotors are cracked from excessive heat and need to be replaced. even with new brake pads the truck will not stop as it should you must drive it like your driving in snow. i seldom drive it over 55 miles per hour unless i am on the open road with no cars in sight. i have had no accidents just several close calls. but that is a result only of my defensive driving habits. i purchased this truck for heavy hauling but the truck won't stop itself much less a loaded trailer. the dealer was happy to put new brakes on as long as the general was paying the bill but now that the 3 years 36,000 has expired it's just me and my check book. *la | |||
| SERVICE BRAKES, HYDRAULIC - FOUNDATION COMPONENTS - DISC - ROTOR | |||
| 12/10/2000 | 10000 | 7 | 10/10/2000 |
| I purchased a new 2000 chevy 3500 4 door dully. it now has 67,000 miles. the truck has worn out seven sets of brakes and at this moment it needs the 8th set plus the front rotors are cracked from excessive heat and need to be replaced. even with new brake pads the truck will not stop as it should you must drive it like your driving in snow. i seldom drive it over 55 miles per hour unless i am on the open road with no cars in sight. i have had no accidents just several close calls. but that is a result only of my defensive driving habits. i purchased this truck for heavy hauling but the truck won't stop itself much less a loaded trailer. the dealer was happy to put new brakes on as long as the general was paying the bill but now that the 3 years 36,000 has expired it's just me and my check book. *la | |||