my 2002 z28 had this and there was a simple fix to put a resistor on one of the tranny wires to not allow this.

I assume, someone has come up with the same feature for the 6-speed Challenger.

All I had to do was buy a certain resistor at Radio shack and plug it in.

Some companies made an aftermarket kit for it:

http://www.ecklerscamaro.com/product...6&dept_id=1873