Was trying to remove casing to access a burnt out front turn signal bulb on my 2001 Durango V8 4.7L. That's not a regular screw. Tried a phillips, but won't fit. What kind of screwdriver do you use to unscrew the lens cover? Looks like some torque screwdriver.

 

you need to use a screwdriver set like this.. the bit on the handle in the pic is the one you'll use..

 

its called a torx bit, i believe the headlights use a t-15 torx, but please check and confirm so that you dont ruin anything using the wrong one.

if you cant find one in a regular hardware store go to an electronics store and buy a set, they will probably come with t-3 through t-30 or t-40 (thats what i have anyway) and are not too expensive, i bought my set (called precision bits) for $9

 

Or if you don't have one already a good wrench/socket set with screwdrivers will have them to, and it is just handy to have around.