May 28, 2016 · This How-To is designed to help you install a rear view mirror that has the temperature and compass in it if you do not have those features already. This was written based off my install on a 2006 Trailblazer LS with manual HVAC controls, as well as information from other forum members.

Jul 13, 2011 · If your problem is that the power light on your mirror is on but that your temp/compass LCD is not (or has been intermittent for awhile but works with smacking and is now dead) then you should at least look into what I found.

Feb 25, 2014 · This is a how to on installing an auto-dimming rear view mirror with compass and temp in your truck. Install at your own risk as this involves a little wiring work. Don't you hate driving at night and when someone comes up behind you with bright lights

Mar 20, 2009 · This How-To is designed to help you install a rear view mirror that has the temperature and compass in it if you do not have those features already. This was written based off my install on a 2006 Trailblazer LS with manual HVAC controls, as well as information from other forum members.

Dec 4, 2010 · If it doesn't show the temperature when you press the temperature button but instead says OC that means that you have an open circuit somewhere. Go back and check the wiring for the temperature probe.

Oct 19, 2024 · I noticed there was a factory ambient air temp sensor mounted in front of the radiator. I picked up a mirror from the wrecker with all the options hoping the truck was already wired for one, but I have no readout on the temp/compass display.

Dec 27, 2012 · The temp sensor is not integrated into the compass, it has 2 wires that go to the front of the truck where the sensor is mounted, but that wouldn't cause your issues. It's possible the mirror is bad or a wiring issue, but I believe the onstar and compass/temp use …

Jul 23, 2012 · Upgrading your manual inside rearview mirror with auto-dimming, compass and outside temperature display. Note: The OEM mirror is manufactured by Gentex. The mirror used in this how to is a Gentex 511. You can find good deals on eBay. Just search for a Gentex.

Feb 1, 2011 · Is it possible to upgrade the rearview mirror( dimming and compass) in my 1997 Tahoe to a 1998 or 1999 with the outside temperature display? Has anyone...

Aug 25, 2016 · My compass/temp display was acting up for the last 6 months. Last week, I found this thread and decided to try the solder re-flow procedure for the power resistors. The display has been working perfectly since.