Replaced Water Pump at 40000kms.
Replaced Water Pump at 85000kms.
Replaced rear main seal at 60000kms.
Replaced headlight lens caps, driver's side 4 times, passenger side 3 times. This becomes annoying and expensive. I finally woke up and drilled a small hole through the lens cap and tied a wire loop to stop them from falling off again. Now I just reseal them.
Windshield wipers stop in upright position. Usually occurs during ice build up for me and tends to fix itself magically within a couple weeks.
Radio changes stations on it's own, sometimes increases/decreases volume on it's own. What can I say - I named it Christine after the famous 57 chevy shortly after she started doing this. Tends to do this only in spring when the weather warms up.
Radio lights work when they feel like it. It has a mind of it's own, I just memorize my presets and look at my watch if I need the time.
Driver's side power window motor went at about 80000kms, and again at about 140000kms.
Passenger side power window motor went at 180000kms.
Interior rear door panels just won't stay attached to the car. Crazy glue helps.
Keyless entry system fails every 3 years or so. This gets annoying, but only costs about $40.00 to get it fixed at the dealer, my regular mechanic can't program them.
Heater fan controls. Basically I lost fan speeds 1,2,3, and 4 over time. I had 5 or nothing at all. My lights would dim for a second when I turned it on, which probably led to the next problem.
Alternator went at about 100000kms.
Battery replaced at 175000kms.
Car takes a ridiculous long time to warm up and blow heat even though I've changed the thermostat twice.
I drive my cars hard, and this one is no exception. My Grand Prix has trailered for 3 years, and at about 30000 kms I overheated the transmission. I changed the fluid, the filter, and installed a transmission cooler and have never had a problem since with the transmissions. I've certainly had my share of problems, but I'm on my 5th set of tires and 4th set of brakes - testament to how rough I am on it. Most of the GM dealers I dealt with were indifferent, and overpriced, luckily I found an honest private mechanic. I service my car every 5000km on the nose and it continues to take every beating I dish out. It's never left me stranded, has plenty of power, looks great, and has a trunk that swallows four golf bags with ease.