What does it mean if my 2012 Jeep Grand Cherokee service engine light, ABS, brake lights come on at same time and speedometer stops working.
could be a speed sensor problem, or even a short somewhere. you are going to have to read that code.
go to auto zone and have them plug in to your obd2 and pull code. Its probably a speed sensor
Search Jeep Grand Cherokee Questions
Jeep Grand Cherokee Experts