All Investigations » Investigation EA04011

  Defect Investigation of Parking Brake Failure

Investigation of Parking Brake Failure

Subject: Parking brake failure
Components covered:
  • Parking brake
  • Parking brake
  • Parking brake
  • Parking brake linkage and cable
Investigations Summary: This investigation was opened on Apr. 9, 2004. It was closed on May. 10, 2005. Note: this investigation has resulted in a vehicle safety recall.
in a letter dated April 20, 2005, gm notified NHTSA that it had decided that defects that relate to motor vehicle safety exist in certain model year (my) 1999-2002 c/k 1500 series (pbr parking brake system) and my 2001-2005 c/k 2500 and 3500 series (trw parking brake system) pickups with manual transmissions. According to gm, some of these vehicles may have conditions that cause the friction linings to wear to an extent where the parking brake can become ineffective in immobilizing a parked vehicle. Gm's action covers an estimated total of 142,585 vehicles. Dealers will install a low-force spring clip retainer for vehicles equipped with the pbr parking brake system and install a redesigned parking brake cable assembly on vehicles equipped with the trw parking brake system. A total of 58 non-duplicative complaints were received by odi and gm concerning the approximately 59,000 my 1999-2002 c/k 1500 series pickup trucks with the pbr parking brake system. These included 22 alleged rollaway incidents, resulting in a rate of 38. 5 rollaway incidents per 100,000 vehicles. Odi is aware of 24 complaints regarding the my 2001-2005 c/k 2500 and 3500 series manual transmission trucks recalled by gm, including 5 alleging rollaway incidents. Though the conditions described in gm's letter are also present in the c/k trucks with automatic transmissions, the rollaway rate in those vehicles was similar to those observed in peer vehicles studied by odi in this investigation. This engineering analysis is closed. For additional information, see the attached closing report.
Vehicles Affected by this investigation:
  • 2003 Chevrolet 1500
  • 1999 Chevrolet C Pickup
  • 2000 Chevrolet C Pickup
  • 1999 Chevrolet C Series
  • 2000 Chevrolet C Series
  • 2001 Chevrolet C Series
  • 2002 Chevrolet C Series
  • 1999 Chevrolet C/k Pickups
  • 2000 Chevrolet C/k Pickups
  • 2001 Chevrolet C/k Pickups
  • 2002 Chevrolet C/k Pickups
  • 1999 Chevrolet C1
  • 1999 Chevrolet C10
  • 2000 Chevrolet C10
  • 2001 Chevrolet C10
  • 1999 Chevrolet C15
  • 2000 Chevrolet C15
  • 2001 Chevrolet C15
  • 1999 Chevrolet C1500
  • 2000 Chevrolet C1500
  • 2001 Chevrolet C1500
  • 2002 Chevrolet C1500
  • 2003 Chevrolet C1500
  • 2003 Chevrolet Denali
  • 1999 Chevrolet K Pickup
  • 2000 Chevrolet K Pickup
  • 1999 Chevrolet K Series
  • 2000 Chevrolet K Series
  • 2001 Chevrolet K Series
  • 2002 Chevrolet K Series
  • 1999 Chevrolet K1
  • 2000 Chevrolet K1
  • 1999 Chevrolet K10
  • 2000 Chevrolet K10
  • 1999 Chevrolet K15
  • 2000 Chevrolet K15
  • 2001 Chevrolet K15
  • 1999 Chevrolet K1500
  • 2000 Chevrolet K1500
  • 2001 Chevrolet K1500
  • 2002 Chevrolet K1500
  • 2003 Chevrolet K1500
  • 2003 Chevrolet Pickup
  • 1999 Chevrolet Sierra
  • 2000 Chevrolet Sierra
  • 2001 Chevrolet Sierra
  • 2002 Chevrolet Sierra
  • 2003 Chevrolet Sierra
  • 1999 Chevrolet Silverado
  • 2000 Chevrolet Silverado
  • 2001 Chevrolet Silverado
  • 2002 Chevrolet Silverado
  • 2003 Chevrolet Silverado
  • 1999 Chevrolet Silverado 1500
  • 2000 Chevrolet Silverado 1500
  • 2001 Chevrolet Silverado 1500
  • 2002 Chevrolet Silverado 1500
  • 2003 Chevrolet Silverado 1500
  • 2003 Chevrolet Suburban
  • 2003 Chevrolet Yukon
  • 1999 GMC C Pickup
  • 2000 GMC C Pickup
  • 1999 GMC C Series
  • 2000 GMC C Series
  • 2001 GMC C Series
  • 2002 GMC C Series
  • 1999 GMC C/k Pickup
  • 2000 GMC C/k Pickup
  • 2001 GMC C/k Pickup
  • 2002 GMC C/k Pickup
  • 1999 GMC C/k Series
  • 2000 GMC C/k Series
  • 2001 GMC C/k Series
  • 2002 GMC C/k Series
  • 2003 GMC C/k Series
  • 1999 GMC C1
  • 1999 GMC C15
  • 2000 GMC C15
  • 2001 GMC C15
  • 1999 GMC C1500
  • 2000 GMC C1500
  • 2001 GMC C1500
  • 2002 GMC C1500
  • 2003 GMC Denali
  • 2003 GMC GMC
  • 2000 GMC Gmt 800
  • 2001 GMC Gmt 800
  • 2002 GMC Gmt 800
  • 1999 GMC K Pickup
  • 2000 GMC K Pickup
  • 1999 GMC K Series
  • 2000 GMC K Series
  • 2001 GMC K Series
  • 2002 GMC K Series
  • 1999 GMC K1
  • 2000 GMC K1
  • 2000 GMC K15
  • 1999 GMC K1500
  • 2000 GMC K1500
  • 2001 GMC K1500
  • 1999 GMC Sierra
  • 2000 GMC Sierra
  • 2001 GMC Sierra
  • 2002 GMC Sierra
  • 2003 GMC Sierra
  • 1999 GMC Sierra 1500
  • 2000 GMC Sierra 1500
  • 2001 GMC Sierra 1500
  • 2002 GMC Sierra 1500
  • 1999 GMC Silverado
  • 2000 GMC Silverado
  • 2001 GMC Silverado
  • 2002 GMC Silverado
  • 2003 GMC Suburban
  • 2003 GMC Tahoe
  • 2003 GMC Yukon

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