i am trying to program a jr xs3 pro to run my slash with an xl5 esc. it will go forward but when i shift it into reverse the wheels keep rolling.

i did the standard program procedure and it isn't working properly.
any ideas on what i did wrong?

Make sure your throttle endpoints (EPA) are set to their maximum; both forward and reverse. Then calibrate the ESC...

If you don't know how to set the EPAs, consult the manual. If you don't have the manual, check this one out:

http://www.spektrumrc.com/ProdInfo/F...30ManualHR.pdf

It's the manual for the Spektrum DX3.0 which is identical to the XS3. The manual for that radio was easier to find than the JR one