: the contact stated while driving at various speeds the engine overheated. The vehicle was taken to an independent repair shop for inspection. The mechanic determined the engine's high performance additive caused corrosion to the aluminum cylinder head. The cylinder head was replaced which corrected the problem. Updated 3/28/2006 - the water pump failed. The battery and brakes failed. The coolant light illuminated. The dealer determined that the antifreeze had congealed and needed to be flushed and replaced. The driver side headlight went out. The driver side window regulator broke.

- Brimley, MI, USA

Where to start, .bought 1999 Grand Am GT in August of 2002 and ithas been downhill ever since. Replaced the alternator twice, have experienced the same intake manifold gasket problem, which was replaced, but still led to the demise of my engine, causing camshaft to snap in half. Thought the trouble was over with the rebuilt engine that was put in, but that was not the case. The window regulator broke in the middle of a snowstorm, causing me to drive with no driverside window. With the new regulator I assumed that the window would stop squeaking, which did not. I assumed the scratches on windows were just from me-sand or some other abrasive material in the window tracks--after reviewing other complaints I discovered I was not the only one with this problem. Have experienced various issues with the no trac/ABS lights, replaced the waterpump, done brakes 4 times in 4 years, front headlights are milky and make it hard to see at night. Have replaced the starter 4 times in just the past 2 years. Needless to say after reading all complaints I feel much better knowing that it is not just me, or my car, but all Pontiac. Bought the car for $10000, have put over $5000 worth of work into it. Will never buy another Pontiac.

- Abington, MA, USA

Headlight unit, the lens is not of good quality and after a while the cover turned milky and made it hard to see at night.

- Crosby, MN, USA

Headlights kept blowing out. Dealer was notified.

- Marksville, LA, USA

Have replaced the entire intake manifold on this car three times. 1999 Grand Am, purchased new, has less than 60,000 miles on it. In addition, have replaced power steering twice and brakes numerous times. Replaced alternator, serpentine belt, battery, starter on ignition, molding due to leaks, wiring on dash, air conditioning resistors/circuits, and headlights/taillights.

- Ashburn, VA, USA

Plastic headlight lamp lenses are fading, it is hard for headlights to come through so consumer can see while driving. Cause unknown dealer notified.

- Spencer, VA, USA

While driving at night in dark headlights will quit working in time to time. Consumer has to flick the switch, and they will start working again.

- Oscoda, MI, USA

Headlights do not light properly due to design.

- Tumwater, WA, USA

When headlights are on there is poor visibility, when making a right or left turn, driver can't see anything but black to the left and right. Dealer can't do anything to fix.

- Tumwater, WA, USA