What did you do to your NNBS GMT900 Tahoe/Yukon Today?

[Chrismnj]

When I look up the part number it says quantity needed (1) so there's probably only 1

maybe is a different part number for second one? and if it is only one why would the mirror show OC

 

[Doubeleive]

maybe is a different part number for second one? and if it is only one why would the mirror show OC

PER rockauto there is only 1 outside temp sensor, it does not show a 2nd sensor or part number, there is only a superseded number. If I understand correctly you added this part from a different year? if so the wiring or programming may also be different, if so then you could maybe add another sensor and wire it up or maybe patch it in to the existing one but that may change the ohm's or something and give a incorrect reading (just guessing). another member added one to his express van but I can't remember there user name at the moment.

 

[Tonyrodz]

PER rockauto there is only 1 outside temp sensor, it does not show a 2nd sensor or part number, there is only a superseded number. If I understand correctly you added this part from a different year? if so the wiring or programming may also be different, if so then you could maybe add another sensor and wire it up or maybe patch it in to the existing one but that may change the ohm's or something and give a incorrect reading (just guessing). another member added one to his express van but I can't remember there user name at the moment.

Me . But the mirror was from an 01-02, non Onstar, and I used only 1 temp sensor. It reads normally, and even says "ICE" when necessary.

 

[Chrismnj]

ok I have found wiring diagram, but it doest match.

 

[Chrismnj]

PER rockauto there is only 1 outside temp sensor, it does not show a 2nd sensor or part number, there is only a superseded number. If I understand correctly you added this part from a different year? if so the wiring or programming may also be different, if so then you could maybe add another sensor and wire it up or maybe patch it in to the existing one but that may change the ohm's or something and give a incorrect reading (just guessing). another member added one to his express van but I can't remember there user name at the moment.

got if from Ebay it was advertised as 07-13 Tahoe/Yukon

 

[12BlackTahoe]

it look like you have all necessary wires for temp to work.

 

[Chrismnj]

it look like you have all necessary wires for temp to work.

Thats what I thought, easy swap, guess not lol

 

[kbuskill]

Thats what I thought, easy swap, guess not lol

Most likely the problem is the BCM and not the wiring. What I mean is the BCM is programmed to send the info to the cluster instead of the mirror.

 

[Chrismnj]

Most likely the problem is the BCM and not the wiring. What I mean is the BCM is programmed to send the info to the cluster instead of the mirror.

Sounds reasonable, I just might’ve pull another wire

 

[Doubeleive]

got if from Ebay it was advertised as 07-13 Tahoe/Yukon

well I have a 2012 and the mirror doesn't show the direction or the temp it's all in the DIC
some trucks have the backup camera screen in the mirror, some are like the one you purchased and some are like mine, I couldn't switch to the one you bought without making changes of some kind either thru programming or wiring