Also, radio, mileage and rearview mirror displays are dim at night. 2001 MC SS

 

Most likely the "instrument panel dimmer switch" same thing happened to my monte. Replaced it and everything was all good. Gonna run ya about 200 bucks.

 

Could be this, should actually cost you around $30.. it's 3 screws and a connector once the dash is removed. You can see how to remove the dash here:


Here is a dimmer switch:

No fogs:

Headlight Switch w O Fog Light 10406799 00 05 Impala Monte Carlo | eBay

Fogs:

B5H2 Chevy Impala Monte Carlo Headlight Fog Switch 00 05 GM Fog Light | eBay

If you need any help, let me know, I pull the dash off on about a weekly basis lol

 

Yup its real simple to change. Paid between 150 and 200 for my switch at the dealership. Wish it cost me 30$ i will have change leftover haha.

 

Thx for all the info. This MC forum is the best!