The dash lights will dim when the head lights come on. Check for a dimmer switch on your dash. It allows you to adjust the dash lights so they are not too bright and affect your nighttime vision. It may be set too low.
Have you checked the fuses?
they are photocells....they adjust the headlights from daytime lights to headlights when it gets dark out and vise-versa
What causes the dashboard light to stay on after your car has been turned off? 1994 Buick Century.
Where are the relay switches on a 1999 Buick Century for the headlights
The 1996 Buick Century horn relay switch is located behind the dashboard. The relay switch will be on the drivers side of the dashboard.
The lights on your Buick could be out for a number of reasons. It could be blown fuses, faulty wiring, or dead bulbs. Your mechanic would be able to test this.
will the dash lights work if we use a bcm out of a different 2002 buick rendezvousand put it in my 2002 buick rendezvous
Interior Lights thumbwheel is above the headlight switch on the left of the dash. Rotate the wheel all the way up to turn on the interior lights. Just past the highest dashboard light setting.
if you have the owners manual it tells you how to change (turn off) the auto lights on setting basically turn the light control knob
the dash and radio lights are supposed to dim when the headlights come on. Make sure you have the brightness of the dash lights turned up as much as possible.
Loose battery or alterator connections
Their are screws at the bottom of the dashboard start from the driver side and go right their mite be about 6 screws