Bravada 97 problems

My 97 Bravada has been acting up. During the winter my heater took a long time to get warm, gauge never went pass 200 - do I need a new heat thermostat?

Also my interior lights suddenly stay on all the time, I removed that fuse to turn them off - what would fix that problem?

Thanks for any help,
Jim

Yep, sounds like your cooling system thermostat is stuck open and needs replacing.
I had a similiar problem with my interior lights, found the lightswitch "on" at the rear dome light.

Thanks Chris, I'll check your suggestions out!

Jim