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Outside Temperature Reading

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Minnvmax
Minnvmax

My 19 has been spot on. I trust it. 

GETGONE
GETGONE

The temperature sensor is in the bottom of the passenger side mirror. If you're parking in the sun it's going to read higher or if it's in the shade it might be closer to actual. Once you start moving

GETGONE
GETGONE

It's on the bottom of the PASSENGER side mirror.

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smit303 Enthusiast

smit303

Posted
Posted

My refreshed 22 Denali is very accurate. Obviously reads high for a few miles if parked in blazing sun, but it comes down to normal temps quickly.

fondupot Senior Enthusiast

fondupot

Posted
Posted

My 2022 LTD is about 5 degrees off. Been meaning to figure out where the sensor is and see if its artificially inflated due to something with the radiator or whatnot. Historically the sensor was mounted near the front grille in front of the radiator.

bdallas Enthusiast

bdallas

Posted
Posted
19 minutes ago, fondupot said:

My 2022 LTD is about 5 degrees off. Been meaning to figure out where the sensor is and see if its artificially inflated due to something with the radiator or whatnot. Historically the sensor was mounted near the front grille in front of the radiator.

It should be under the outside passenger side rear-view mirror

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Z45 Senior Enthusiast

Z45

Posted
Posted

Temperature can vary from location to location.  Whats more reading between equipment can vary. 

 

The temp sensor is located in center of grill below hood latch support. 

fondupot Senior Enthusiast

fondupot

Posted
Posted
4 hours ago, bdallas said:

It should be under the outside passenger side rear-view mirror

 

Well that doesn't track. Because I've replaced my OEM mirrors with Boost Auto towing mirrors and the temp sensor still works...

bdallas Enthusiast

bdallas

Posted
Posted
53 minutes ago, fondupot said:

 

Well that doesn't track. Because I've replaced my OEM mirrors with Boost Auto towing mirrors and the temp sensor still works...

That's because Boost Auto tow mirrors are shipped with the sensors installed.

image.thumb.png.ceff7652e67e29079adc85816af27625.png

fondupot Senior Enthusiast

fondupot

Posted
Posted
16 hours ago, bdallas said:

That's because Boost Auto tow mirrors are shipped with the sensors installed.

image.thumb.png.ceff7652e67e29079adc85816af27625.png

Well that’s neat. Thanks for the information 

  • 10 months later...
Mcflygb79 New Member

Mcflygb79

Posted
Posted

I was told by my GM dealer that this is a know issue. I have a 2024 at4x 2500 with the same issue 8-15 degrees off. Pretty sad that a 90k truck can have these issues. Unbelievable 

GMCustomerService Senior Enthusiast

GMCustomerService

Posted
Posted
22 hours ago, Mcflygb79 said:

I was told by my GM dealer that this is a know issue. I have a 2024 at4x 2500 with the same issue 8-15 degrees off. Pretty sad that a 90k truck can have these issues. Unbelievable 

We regret to hear of this concern revolving around the temperature reading in your vehicle and would like to investigate further on our end. 

Jus Cruisin Enthusiast

Jus Cruisin

Posted
Posted

I haven't even wanted to look at mine lately. Extremely depressing looking at single digit numbers. 🥶

redwngr Senior Enthusiast

redwngr

Posted
Posted
On 1/21/2025 at 5:22 PM, Mcflygb79 said:

I was told by my GM dealer that this is a know issue. I have a 2024 at4x 2500 with the same issue 8-15 degrees off. Pretty sad that a 90k truck can have these issues. Unbelievable 

Is it that far out all the time or just at start-up?

DubVBenz Enthusiast

DubVBenz

Posted
Posted (edited)

On all of my other cars, which are mercedes dating back to the 80s, the thermometer's have been near the road surface. Given that it's asphalt, the road surface is always warmer than the ambient temperature. I assume my truck is the same. It's more useful to know the road temp during freezing or near freezing conditions. 

 

That said, my truck's thermometer seems more stubborn than my others, taking longer to adjust to outside conditions after I pull it out of my garage. 

Edited by DubVBenz
GETGONE Enthusiast

GETGONE

Posted
Posted

The temperature sensor is located on the bottom of the passenger rear view mirror.

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