warning lights on dash
I recently changed gear ratio from 3.23 to 3.73 to help with towing my RV. Now I have the ABS light , Brake light, and Traction control light on. My speedometer was also showing 9 mph fast. I purchased a programmer and got the speedometer problem corrected however all the other lights are still on. How can I correct this? I did try going from a 245/70/17 tire to a 265/70/17 and the lights went out, but this kinda defeats the gear ratio change.