I had an oil change at the 15515 N Scottsdale Road location. When the car was delivered to me, there were two engine warning lights on that had not been on when I drove the car in. The technician said that the lights were on when he got in the car, which was not true. I took the car to the dealer who said that a sensor light had been left unplugged when they removed the air filter. I should have read the many bad Yelp reviews prior to going to this facility.