Pontiac Bonneville Problem Reports

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The ABS brake pressure modulator valve can fail internally causing the ABS light to illuminate.

The anti-lock brake (ABS) accumulator may fail causing loss of power brake assist. (The brake pedal will become very hard.)

If the ABS light on the instrument panel illuminates, our technicians recommend checking the brake lamps first. It could indicate that a brake light is not working or has burned out.

The Engine Control Module (ECM) can fail causing stalling, and engine and transmission drivability concerns.