Morgan-McClure Chevrolet Buick Cadillac

July 4 2017 issues began with windshield wipers malfunctioning during rain. I scheduled an appoint with morgan McClure to have the issue fixed. I had also had issues with the key getting stuck in the ignition as well as issues with the transmission, the RPMs would exceed over 5000. I took my 2015 chevy Colorado to the service department when they told me nothing was wrong with the transmission or the key ignition. They did replace a fuse for the windshield wipers. I picked my truck up Approx 2 days later. On the next day of driving the vehicle, the wipers once again got stuck in an upward position during rain and the key was also sticking in the ignition as before. I took the vehicle back to Morgan McClure. They told me the junction box was blown and this is why the wipers didn't work, that was replaced. Once again they said nothing was wrong with the key ignition, that they even had the owner of the dealership test drive the truck. I picked my truck up the following day. Not more than 2 days later the wipers once agin did not work, which is a serious safety issue and also the key was still sticking in the ignition. I left my vehicle at Morgan McClure service department for several days, they informed the key was sticking due to lint on the key probably from my pocket. The wipers were checked and they said there was no issues. I have contacted GM corporate to discuss the issue with a supervisor, in turn they did not help me, stated they could not help me due to the dealership being privately owned, but a GM vehicle is still a GM vehicle. I picked up my vehicle for the 3rd time July 27th. As I was driving it began to storm with heavy rain. Once again my wipers failed and I couldn't see the road. I had left the dealership approx 4 hours prior to this happening. I informed Tim Morgan, the owner of the dealership about this matter. I have been told by Tim Morgan as well as the GM supervisor that if the issue was not resolved a new vehicle of the same year or newer would need to be issued to me. This being the 4th time I've had to get a rental from the dealership because they can't seem to find out what the issue is with my vehicle and even the service manager, *** told me he did not know what was wrong with the truck. I have discussed all these issues with the owner of Morgan McClure as well as GM without a resolution to the problem. This is a safety issue that needs to be fixed. I have had 4 rental vehicles and have barely drive my truck during the month of July and am paying $500 a month for a vehicle that is unsafe to drive. The business is making little effort to find the problem and the service manager at Morgan McClure has consistently blamed me for the problems. I have had this truck for approximately 3 months. I was not told of any issues with the vehicle when it was purchased.