2000 Buick Park Avenue

On certain vehicles, a combination of a low battery condition and fuel in the upper intake manifold while the ignition key is activated at engine start could cause an elevated rate of manifold over-pressurization events. The operator may experience a loud bang / intake backfire that could rupture the intake manifold, resulting in emitting dust from under the hood and a no-start condition. If this event were to occur, and if an ignition source were present, an engine compartment fire could occur. Correction: Dealer will replace the fuel pressure regulator.

Certain vehicles may have internal fluid leaks in the brake hydraulic control unit. When the rear brake proportioning, antilock brake, traction control, or stability control feature is activated in some driving situations, the feature may not perform as designed and the driver could lose vehicle control. Correction: ABS hydraulic modulator unit will be inspected and replaced if necessary.