Due to the check engine light constantly coming on I was told that I needed a new gas cap. It was stated if the cap is not on properly it affects the emission controls. I have replaced the gas cap several times nothing has changed engine light goes on and off. There still has not been accurate justification for this matter. Vehicle has faulty / leaking air bags on the rear suspension. Upon research this has been a problem on GMC vehicles from 1994 ~ 2006. Why are there no recalls? GMC Envoy vehicle are sitting very low during freezing temperatures. Upon starting the vehicle it will raise back up and level itself but it should not drop down low period. Websites are flooded with complaints. I have contacted GMC regarding all these issues and nothing has been done. I was told there were no recalls regarding these matters which I don't understand. I have viewed so many complaints on several websites regarding these same issues. Exterior lights~ lamps have faulty sockets due to moisture getting inside the lamps / back up lamps. Bulbs burning out continuously. Unfortunately when you take your vehicle to a frequent dealer, many times they'll step outside to check your vehicle quickly without putting you in the system if they feel no service is required. I believe this may be why these complaints are not being addressed/ reported / or recorded. It is apparent there are serious problems with these vehicles. Something needs to be done, and we should not have to deal with repeat manufacturer defects/hazards year after year. It is not fair to us (the customer). They can continually contact you to trade in your vehicle or buy it, but they can't contact you regarding defects on the vehicle. I was told they only notify the original owner of recalls. Again they'll contact you regarding marketing and advertising. Thank you in advance for your time and consideration.

- Indianapolis, IN, USA