I just bought a used 2001 this week, my first. Test drove it for an hour checked it out then jumped all in. Today, while driving around town at low speeds, on 3 occasions 4 lights came on the dash and a buzzer sounded. It also sounded like something was trying to engage. I immediately braked and put it in park and it went away. I haven't been able to recreate it. I am thinking my right knee may have hit the differential button, I am 6'5". Each time I was probably going less than 20 mph. I am having the whole rig looked over tomorrow. Any thoughts on what that could be? Does it sound like I am accidentally hitting that button and need to be careful? Thanks for the help!