Faults:

At 59,000 miles my passenger rear window stopped working and dropped. A few weeks later the driver rear window also stopped working and dropped. Repair for the first window was estimated at $400 to fix or $60 to lock it into closed position. I chose to lock it into the closed position. Now that the other window has the same fault, I am not sure if for safety reasons whether or not I should also lock shut the second back window. Clearly the dropping windows is a design fault. Anyone else have any luck with help from GM?

Faults:

Absolutely nothing at all has gone wrong with the car, except if you count a blown tail light. I haven't had the car very long, but it rides perfectly and is in excellent condition.

General Comments:

I've been in the market for a used car and have been doing my research and I've come to read quite a lot about quite a few cars, but nothing even comes close to the quality of the Bonneville.

I bought it at 5 years old, but everyone who sees it or rides in it swears the car is brand new!

Faults:

Had to replace the window motor at 90,000 miles.

The moon roof switch was faulty at 80,000 miles.

General Comments:

I really love this car, but am really worried about the electical problems so far. My family owns about 7 Bonnevilles and the newer ones.. 2000 thru 2003 all are having window motor problems and at $250 for the replacement part... it can get quite pricey! One car has had 3 replacement motors already!

These are great cars and other than these relatively small problems we all love them. My brother-in-laws has over 350,000 miles on it!

Faults:

The original tires supplied by Goodyear vibrated at highway speeds.

General Comments:

This is my second Bonneville. I had a 2000 SE for about 2 years and put 36,000km trouble free on it, except for the Goodyear tires. I traded the 2000 in on a 2001 SSEi and now have 102,000 km. on it.

I found the finish on both cars to be outstanding - the doors, windows, trim, dash, seats - were all excellent. The heating/ventilation system, stereo, and traction control all work flawlessly.

The seats are excellent for long trips and the inflatable lumbar support makes the SSEi the best car for seating I have ever driven.

Both the supercharged and non-supercharged engines are smooth, powerful, and have been completely trouble free. They are quite economical on the highway, if not pushed and driven reasonably.

Once I replaced the Goodyear Eagles with Michelin tires, all vibration disappeared. The 2001 SSEi still has lots left on its brakes and I have had none of the problems other drivers mentioned about steering, belts, loss of coolant, etc.

My only complaint is an occasional misfire that sends the tachometer to zero rpm. The engine does not stall. This started about 20,000 km ago and I was told that the plugs should be changed around 80-100,000km instead of the 160,000km suggested by the manufacturer.

A software update at about the same mileage keeps the transmission engaged in top gear lock-up too long and can produce some "hunting" as it can't decide whether to come out of lock-up or not. Once you get used to it, it is not a problem and it did add to the fuel economy.

The 2001SSEi is the best highway car I have ever driven, however, it is thirsty if pushed. I have had it four years and, other than routine maintenance and a set of new tires at 90,000km, it hasn't cost me a cent!!