Interior lights

[f5fstop]

They could be bulbs or LEDs, they are designed not to be replaced; however, they can be. If you are good with a soldering iron and not worried about tearing the components apart.
I replaced all the component bulbs (radio, HVAC, I/P computer) and all switch bulbs on my Vette with Blue LEDs. Easily to disassemble the components and access the bulbs. Very hard to install LEDs in place of bulbs.

[dolphin06]

Adam,
The lights on the climate control unit are led's soldered onto a board inside the unit. So like f5fstop says, if you're good w/a soldering iron, go for it.
Not exactly sure about the tow/haul unit lites, my guess is there're probably the same.

FYI: the climate control unit is just over $400 & according to the Hummer parts guy, it has to be installed & programmed @ the dealer, if that helps w/ your decision to try and replace on your own.

[Adam in CO]

Mmmmmmm. I like Paragon's solution.

"My car doesn't have any problems a louder radio won't fix" kind of solution.

[timgco]

Originally Posted by Adam in CO

Mmmmmmm. I like Paragon's solution.

"My car doesn't have any problems a louder radio won't fix" kind of solution.

Hey a$$hole, in my minutes, you'll have a PM.