Driver's window is slow coming up and will occasionally slip off track and tilt toward the front of the vehicle.

Is this a bad regulator or is it something else?

_________________
06 KJ Sport
-245/75/16 Destination A/T's
-Debadged and decaled
-Liberator door handles

It may be on it's way, but you may be able to save it before it breaks. If the plastic hasn't cracked yet, it may just be dirty window tracks that are slowing things down and causing the window to tilt.

Take a look at this thread:
Save Your Window Regulators - Clean your Tracks!

_________________
2007 Light Khaki 4x2 Sport
- Debadged - LTT CAI with Amsoil Filter - JVC HD Radio - Infinity BassLink
- Iggee Seat Covers - Black Moabs - 265/75-16 Cooper Discoverer ATP - 4.10's
- DIY Franky sitting at 23.75" - Al's 4.5 UCAs - Trimmed F&R Bumpers
- Removed Rear Sway Bar - Removed Rear Vibration Damper
- 75k miles so far...

The tracks in all of my vehicles are routinely cleaned and sprayed with silicone spray.

That being said...window regulator?
Still under warranty...better now than later I guess.

_________________
06 KJ Sport
-245/75/16 Destination A/T's
-Debadged and decaled
-Liberator door handles

Yes. If they are already clean, it is the regulator. It is probably cracked or partially broken. Just not all the way yet. Just take it to the dealer and have them replace it now.

_________________
2007 Light Khaki 4x2 Sport
- Debadged - LTT CAI with Amsoil Filter - JVC HD Radio - Infinity BassLink
- Iggee Seat Covers - Black Moabs - 265/75-16 Cooper Discoverer ATP - 4.10's
- DIY Franky sitting at 23.75" - Al's 4.5 UCAs - Trimmed F&R Bumpers
- Removed Rear Sway Bar - Removed Rear Vibration Damper
- 75k miles so far...

That will be 3 in a year! I always say "Go BIG or go home!" Guess we're going big!

_________________
06 KJ Sport
-245/75/16 Destination A/T's
-Debadged and decaled
-Liberator door handles