Headlights shake when going over small bumps in the road.

- Ofallon, IL, USA

Headlight assembly: Both headlights on the front are "bouncing / shaking" when you drive the vehicle. This is easily duplicated when you drive the vehicle in the evening when it's dark. Oncoming vehicles have flashed there high beams because of the result of the lights shaking up and down. The headlight assembly is loose and this is common with other 2004 Pontiac Grand Prix (according to a Pontiac message board). I phoned Pontiac regarding this problem and was told they are "lowering the headlight beam closer to the ground from the front of vehicle". this will reduce visibility in night time driving and will not solve this problem. The headlights will continue to bounce & shake, but will not bounce high in the air blinding other drivers.

- Hingham, MA, USA

The headlights are shaking/bouncing around while driving. Manufacturer is aware of the problem, and is providing a temporary solution by tightening the adjuster screw. This causes the headlight beam to aim low, which reduces visibility.

- Hingham, MA, USA

Headlights bounce when driving over uneven pavement. This is distracting to the driver and also to oncoming vehicles. I do not yet see a tsb on this problem.

- East Granby, CT, USA

Headlights on my 2004 Grand Prix vibrate (bounce) when going over bumps, very distracting. Exhaust system has loud and annoying pinging sound, most noticable for a while after car has been driven, then turned off.

- Wadsworth, OH, USA

It looks like I am one of many complaining about the bouncing headlights. This is not only distracting to myself, but to other drivers. I can only hope that something will be done to remedy this from the manufacturer.

- Murrieta, CA, USA

After review of consumer complaints with regard to boucing headlights... I too am having the same problem... please advise on next steps.

- Manchester, NH, USA

Headlights not aimed properly or bouncing. Oncoming traffic will flash highbeams. After riding behind someone they will comment my lights shake and are too bright.

- Raleigh, NC, USA

Headlight bounce update. Problem continues to persist. Other vehicle owners have reported similar problems. See more information here: www.clubgp.com/newforum/tm.asp?M=883856&P=1&mpage=1&tmode=1&smode=1&key=&language=

- Nesbit, MS, USA

My headlights are bouncing up and down while driving down the road in my 2004 Grand Prix gtp w/comp G.this is very distracting to both me and the other cars traveling towards me. GM does not seem to concerned but, evidently they are not the ones driving the car. There has been no accident, I just filled out the incident date so I could proceed to the next page.

- Oh, OH, USA

2004 Pontiac Grand Prix. Bouncing headlights - annoying and distracting to surrounding traffic. Needs to improve headlight mounting.

- Lancaster, PA, USA

Headlights bounce on all road surfaces at all speeds, causing distractions for both the driver and other traffic, both oncoming and leading. Dealer acknowledges problem but has no tsb or fix available from Pontiac.

- Nesbit, MS, USA

Headlight shake badly. Any slight variation in the road such as expansion joints, cracks, bumps, etc. Result in obvious shaking seen on reflective signs, car tails, etc. This is pretty distracting as a driver of the car, I can't imagine the impact on others. Dealer offered no solution as Pontiac has not officially acknowledged the problem but all 2004 Grand Prix models have this issue.

- Katy, TX, USA

The headlights were shaking which has caused the distraction of drivers on the other lane. The dealer's service department official response was that the headlights are within specifications and designed that way.

- Milton, VT, USA