I have a 2012 JKUR Sahara and recently had to have my whole front axle replaced by the dealership. Now I have notice that my ABS, traction control, e-brake, and hill decent lights will ding on and my speedo will drop to zero and the cluster lights dim. But as soon as I hit the gas everything goes back to normal. Yesterday when it happened the traction control light stayed on. Has this happened to anyone else. And what do you guys think it could be?

thanks in advance

 

I just had an issue where my ABS/ESP BAS lights all lit up for no reason. Plugged a superchip in and ran the codes, it was a front wheel sensor. ive heard it can easily get damaged when working on the BJs or axle
Have a friend with a superchip or procal or autozone run the codes to see what exactly it is. I think you can also run the codes by turning the key from off to ON three times within 5 seconds and it "should" display the codes on the dash

 

If it's a problem with the abs system the key dance will not pull the codes up. You need a quality code reader that says it reads abs coded

 

Good to know, everytime i had an error code that never worked but didnt know if it changed with the newer models