How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15201
Experience:  GM Grand Master Technician 2007. 14 years experience.
Type Your Chevy Question Here...
GM Tech (Cam) is online now
A new question is answered every 9 seconds

2009 Tahoe. 140,000 miles. 4 things happened at the same

Customer Question

2009 Tahoe. 140,000 miles. 4 things happened at the same time. 1) Rear view mirror backup screen stopped working. 2) Digital compass in dash stopped working. Just shows a dash (-). 3) Sun visor vanity mirror lights stopped working. 4) Suddenly unable to turn on dome/passenger lights individually with button at each light. I can turn them all on at the same time from the knob at left of steering wheel on dash. Been this way for 6 months. I’m just living with it for now.
Submitted: 1 year ago.
Category: Chevy
Expert:  chevygeorge replied 1 year ago.

Hello, My name is ***** ***** I'm here to assist you today. I'm sorry you're having these issues. Please give me a moment while I pull up the documents and investigate.

Expert:  chevygeorge replied 1 year ago.

Are the dome lights working normally when the doors are opened?

Expert:  chevygeorge replied 1 year ago.

I work on these daily, but remind me, the individual dome lights are in the overhead console correct,or on the mirror?

Customer: replied 1 year ago.
dome lights work fine when doors are opened.
Customer: replied 1 year ago.
Dome lights are everywhere. Front, center, back center and over rear passanger doors.
Customer: replied 1 year ago.
not on mirror
Expert:  chevygeorge replied 1 year ago.

The buttons to activate the individual lights are on the console. Okay, the lights are controlled by the BCM. There are 2 fuses to check in the instrument panel fuse block. CTSY fuse 15 amp and IP LPS 10 amp.

Expert:  chevygeorge replied 1 year ago.

I'm not seeing a lot in common with the lighting and camera besides the BCM. Are your reverse lights working(to activate the camera). Here's something to check on the mirror.

Expert:  chevygeorge replied 1 year ago.

Another thing to look at on the compass issue.

Customer: replied 1 year ago.
Can't view your links. What it this dropbox thing and why won't the PDFs open?
Expert:  chevygeorge replied 1 year ago.

I'm not coming up with a good strategy for attack without just checking multiple random things. I think the best course of action would to get the vehicle a full diagnostic scan. There should be BCM and Compass communication codes that would lead us in a direction. Without out those were just running in the dark.

Dropbox is a file sharing site. Your may need a simple sign up to view. It seems to be the most popular way to share (possibly) copyrighted material here.

Expert:  chevygeorge replied 1 year ago.

It's a google service, so it's trusted.