This is the letter that I wrote GM, I have yet to receive a response. Good Morning, GM Priority Care. Regarding my 2014 Chevrolet Silverado, which was purchased from Silver Star Chevrolet located in Thousand Oaks, CA last March of 2014. Since purchasing this vehicle I have experienced many issues, some of which still exist despite Silver Star’s attempt to identify and repair. As I explained when we spoke, the truck was lifted by Silver Star Chevrolet using Four Wheel Parts in Thousand Oaks, and is now warranted through DSI (Dealer Services International) replacing the original factory warranty. This replacement warranty was not fully explained when purchasing the truck, but through attempting to gain resolution of warranty issues has become very clear. In fact, we were told that the lift was warranted by DSI, but the GM warranty would remain in place. What was not made clear was that the lift VOIDED the GM Warranty for the Power train and all other suspension related component portions of the warranty. Time and time again I have brought my truck back to Silver Star to try and resolve some of the outstanding issues. However, each time I am told that the issues are being caused by aftermarket parts which have been installed on the truck and that I should deal with 4 Wheel Parts to get it fixed or that they could not recreate the issue. In my last visit I recreated the issues while leaving their lot – but they refused to ride with me – Stating "They only look for diagnostic trouble codes, and since none appeared they assumed the vehicle was fine". After becoming fed up with Silver Star and their business practices I choose to take my truck to Keyes Chevrolet who were extremely customer oriented and I truly believe that they had a desire to fix my truck however they were not able to recreate every issue and codes weren’t being thrown to tell them where to look. They did in fact ride in the vehicle, and observed the issues, but without finding any diagnostic code could not resolve the issues either. Below is a list of the issues. So in regards to the issues I have experienced with my truck since the time of purchase. When I purchased the truck the installed tire calibrator would not allow the truck to shift under full acceleration. This has been fixed. From time to time I have experienced unintended acceleration. Fortunately I’m quick on the peddle and have been able to break each time. Since I have purchased the truck I have experienced a vibration in the rear differential under half to full acceleration. It feels like the entire rear differential is going to break off from under the truck. This is sporadic. Recently the motor has begun to shake as if it has a misfire or a broken mount somewhere. At times the vibrations are minimal and or even appear to be no existent however at other times the truck will shake so bad that its as if I have a vibrator under my seat. The blower motor on the air conditioning system acts up from time to time and will not blow at full blast. Silver Star claims that they performed a recall on this and that it should be fixed. In addition to that issued I have experienced issues with the temperature sensors in the system. From time to time the air conditioner has read out at 70 degrees while the system is blowing much closer to 85 degrees. Keyes claimed that there was a recall on this as well how I have experienced this since they have performed the recall. Since the purchase of the truck the traction control and ABS systems have been a constant annoyance going off all of the time. However I believe that Keyes has fixed this for good. : ) I believe that the motor in my seat is going out, on several occasions I have been able to adjust my seat down however it has either refused to come back up or moved extremely slowly. On one occasion my screen in my truck green screened and afterwards my camera was very blurry for about a week and from time to time I still experience sporadic blurriness. On one occasion I parked my truck and locked my steering wheel in place. When I returned to my truck and tried to unlock my steering wheel by applying slight pressure and turning my key the entire steering column turned 90 degrees! On many occasions my stereos volume jumps around. For example I will be listening to a song and turn the volume up to max however I only get half volume. And a few songs later the system starts working properly again and ill get full volume. It could be a bad amplifier. In conclusion this is my first Chevrolet Silverado and my second Chevrolet all together. Before purchasing my truck I owned a 2012 Chevrolet Camaro SS which I loved and had zero issues with. My experience with my Chevrolet Silverado has been miserable at best. I have told anyone and everyone that would lend ear of my experience with this truck and what to expect from Silver Star. At this point without intervention from GM I intended to peruse a lemon law attorney given that my truck has so many issues that are unresolved. My hope is that you can help to resolve these issues without intervention from any outside source. I hope that Chevrolet can redeem themselves in regards to the opinions I express to others about Chevrolet as a company.