Some of the interior lights don't work

Asked by Jan 13, 2015 at 06:03 PM about the 1993 Buick Riviera STD Coupe

Question type: Maintenance & Repair

I have a 93 Buick Riviera.  All the dash lights work except those for the a/c, radio, and gear shift and the headlights don't go off automatically anymore.  I think I have a short somewhere because the fuses are ok.  How do I find out where that short is?

4 Answers

7,405

check the twighlight sentinel... it should be at off position.

twilight sentinel is at off position. it doesn't seem to make any difference which position it is in...it doesn't work. the lights on the radio, console gear shift, and heat and air do not work. are they all on the same wiring harness? maybe there is a short?

1,245

Charlotte yes the lights you described are on a different circuit. These items/locations have its own light circuit that's inter connected with lets say the radio. It has been my experience to either locate a radio/heat/a/c control panel with the lights working or just leave it be. The lights works from a circuit board where the connectors are soldered in. The light that's illuminates the console gear shift should have its own light/bulb.

Charlotte, I am having the exact same problem with a 1990 Buick Riviera right now. The backlighting is not working as you described. The electronic dashboard works fine, but won't dim. I additionally am not getting heat through the defrost or heat settings (heater core is fine & blend door opens with temperature controls). All of these issues started together at the same time. I have cleaned up main grd and pos terminals under hood & checked fuses. Tried swapping BCM, PCM & light switch from another 1990 Riviera with no change. Where you able to solve the issue with your interior lighting?

Your Answer

Add photo

Related Questions

Riviera

Looking for a Used Riviera in your area?

CarGurus has 120 nationwide Riviera listings and the tools to find you a great deal.

ZIP:

Search Buick Riviera Questions

Buick Riviera Experts

#1 Alvin1966
Alvin1966
Reputation 1,090
#2 Chris Kelley
Chris Kelley
Reputation 550
#3 Jason Zane
Jason Zane
Reputation 400
View All

Related Models For Sale

Used Chevrolet Impala
600 Great Deals out of 35,644 listings starting at $899
Used Buick Regal
162 Great Deals out of 10,573 listings starting at $4,000
Used Ford Mustang
696 Great Deals out of 44,783 listings starting at $1,500
Used Chevrolet Camaro
354 Great Deals out of 31,417 listings starting at $2,400
Used Chevrolet Corvette
221 Great Deals out of 22,190 listings starting at $3,850
Used Buick LeSabre
17 Great Deals out of 1,949 listings starting at $1,588
Used Buick Park Avenue
398 listings starting at $1,500
Used Cadillac DeVille
1,722 listings starting at $1,995
Used Ford Thunderbird
19 Great Deals out of 1,080 listings starting at $5,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.