Outside temperature doesn't work (2001 Deville)

I don't know why nor do I know if/how you can reset it. But I do know the sensor is just behind the grille. When you open the hood it's right there, in the middle, down by the bumper almost directly behind the middle of the grille. I'd check to make sure it's plugged in and that the wires didn't somehow get pinched.

Jim

I have an aftermarket grille. Can that be the reason?

peteypablo1 said:

I have an aftermarket grille. Can that be the reason?

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Not unless the sensor somehow got damaged during the installation of the grille. The grille itself shouldn't have anything to do with the temp reading.

Jim