Vehicle on 4th alternator at 63,000 miles. Alternator failure in this vehicle can occur suddenly, with little or no warning, at any speed, leaving driver with limited ability to control vehicle. Voluntary manufacturer recall 8/99, spark plug wires replaced to better handle electrical loads. Problem improved but not resolved. Other vehicle owners have same experience and complaints including at NHTSA website. Vehicle model & year with 3.4 litre engine unable to sustain normal electrical loads. Alternator failure occurs every 1-2 years, always when air conditioner operating. Manufacturer refused to cover most recent replacement under "secret warranty". repairs with rebuilt alternator cost nearly $800 excluding tow, car rental & cell phone charges. Vehicle blocking lane of traffic on major arterial during rush hour. Frequency of alternator failure is clearly not normal wear or use. Received no written response from prior written complaints to Pontiac.

- Bellevue, WA, USA

Vechicle ABS light came on all interior and external lights dimmed, once vechicle was shut off it would not restart. Battery was replaced it worked fine for about 1 week. I was informed the alternator was not putting out enough amps, so the alternator was replaced and 1 week later same problem again so alternator was replaced a 2nd time. That same day the problem was repeated. It seems when the ABS light comes on all the power from the battery is drained.

- Freehold, NJ, USA

Alternator failed.

- Royal Oak, MI, USA