2004 Pontiac Grand Prix brakes problems

Defect

CERTAIN PASSENGER VEHICLES WERE PRODUCED WITH LOWER THAN SPECIFIED TORQUE ON BOTH FRONT BRAKE CALIPER TO STEERING KNUCKLE ATTACHMENT BOLTS. WITH IMPROPER TORQUE, THE CLAMP LOAD AT THE JOINT MAY NOT BE ADEQUATE TO PREVENT MOVEMENT BETWEEN THE CALIPER BRACKET AND KNUCKLE.

Consequence

DEPENDING ON WHETHER ONE OR BOTH BOLTS BACKS OUT OR FRACTURES, THE RESULT CAN BE LOCKING OF THE AFFECTED WHEEL DURING BRAKING AND AN ABRUPT STEERING INPUT IN THE DIRECTION OF THE LOCKED WHEEL, REDUCED BRAKING AND NOISE FROM THE AFFECTED WHEEL, OR SEVERING OF A BRAKE HOSE, INCREASED BRAKE PEDAL TRAVEL, AND REDUCED STEERING CONTROL. REDUCED BRAKING OR STEERING CONTROL COULD CAUSE A CRASH.

Remedy

DEALERS ARE TO TIGHTEN BOTH BOLTS TO THE SPECIFIED TORQUE. OWNER NOTIFICATION BEGAN ON JUNE 28, 2004. OWNERS SHOULD CONTACT CHEVROLET 1-800-630-2438 OR PONTIAC 1-800-620-7668.

Defect

CERTAIN PASSENGER VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 135, "PASSENGER CAR BRAKING SYSTEMS." ON SOME OF THESE VEHICLES, THE RIGHT REAR BRAKE HOSE FITTING MAY NOT BE TIGHTENED PROPERLY, AND A BRAKE FLUID LEAK COULD OCCUR.

Consequence

IF ENOUGH FLUID LEAKS, THE BRAKE PEDAL WILL BE LOWER THAN NORMAL, AND STOPPING DISTANCES WILL BE LONGER. IF THIS OCCURS WHEN STOPPING DISTANCE IS LIMITED, A CRASH COULD OCCUR.

Remedy

DEALERS WILL TIGHTEN THE RIGHT REAR BRAKE HOSE FITTING TO THE PROPER TORQUE SPECIFICATION, AND ADD BRAKE FLUID IF NECESSARY. OWNER NOTIFICATION BEGAN AUGUST 28, 2003. OWNERS SHOULD CONTACT PONTIAC AT 1-800-620-7668.