So many... where do I start? 1) at 9,000 mi. Intermediate shaft was replaced due to a popping feeling in the steering, at 16,000 mi. It is doing the same thing again. 2) at 9000 miles the instrument cluster was replaced due to a faulty tach motor making a buzzing/rattling sound, started making noise again at 13,000 miles took to dealer and said there is nothing wrong. 3) headlights flicker on and off on turns has been to the dealer 5 times since it had 9000 mi. 1st 2 times replaced a plug on alternator and said it was fixed, was not then said the found a bad connector still did not fix the problem. The problem still exists contacted GM and they were no help. 4) exhaust has been popping since new and sometimes after cool down sounds like something exploded 5) engine makes a noise when warmed up took in for service at 12000 miles and they cleaned oil pump pickup tube and said the oil pressure was not correct. This did not fix the problem took back in at 15000 and they stated no problem was found I was told the engine noise was normal. 6) the brakes pulsated when new took back at 59 mi. I was told to drive it and it would get better. Started again at 9000 mi. And they turned the rotors. Brakes started making a cracking noise in the front took in 3 times found no problem yet when I picked the vehicle up the last time at 15,000 mi the noise went away only to come back a week later. 7) when idling the vehicle vibrates bad!!!! dash will rattle and you can feel it in the steering wheel. I was told this was normal when the A/C was on yet it's worse when the A/C is off. Now that A/C is making a terrible noise from inside the engine compartment and inside the climate control box area. 8) engine has a miss at idle.

- Morgantown, WV, USA

There is a very obvious pop/ping, almost like a bell like sound that is coming from the underside of the vehicle. This happens when the vehicle has been driven for a while and the sound can be heard during idle or immediately after the car has been turned off.

- Lake Forest, CA, USA

Loud popping/pinging noises coming from exhaust system when car is in idle position or when car has been turned off. Dealership replaced muffler but problem started again about 3 weeks later. GM states it is a known problem, but there is currently not a fix for it. Says it is definitely the exhaust system.

- Juliette, GA, USA