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Outside Temperature Reading

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Bikerjon Enthusiast

Bikerjon

Posted
Posted
On 1/22/2025 at 6:01 PM, Jus Cruisin said:

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

Me either. Its been cold here lately. Below zero for highs some days.

  • 1 month later...
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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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MattWW New Member

MattWW

Posted
Posted

I've had several (5) GM trucks with outdoor temperature sensors and every one of them displayed a very accurate ambient temperature under normal conditions. That is, until I recently got a 2022 Silverado 2500 HD. It's not really important, just annoying that it isn't right. It is consistently 5 degrees higher than actual. It isn't the sun or a bad temperature reading on my iPhone, since I never had this problem with my other vehicles. I'll probably replace the sensor at some point but I have a suspicion it has to do with the location (passenger side mirror).

  • 2 weeks later...
Mcflygb79 New Member

Mcflygb79

Posted
Posted
On 1/22/2025 at 3:07 PM, GMCustomerService said:

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

It’s obviously a common issue. What’s gm doing to fix this?

 

redwngr Senior Enthusiast

redwngr

Posted
Posted (edited)

What temperature measurement source are you using to compare with the truck? 

 

 

Edited by redwngr
Transient Senior Enthusiast

Transient

Posted
Posted
On 3/16/2025 at 9:12 PM, Mcflygb79 said:

It’s obviously a common issue. What’s gm doing to fix this?

 

They will do nothing

tbarn Senior Enthusiast

tbarn

Posted
Posted

Well, here is partial diagnosis of the outside air temp sensor per the General.

 

  1. Verify the scan tool ECM Ambient Air Temperature parameter is within 15°C (27°F) of actual ambient temperature.
    • If not within 15°C (27°F) of actual ambient temperature

      Refer to Circuit/System Testing.

    • If within 15°C (27°F) of actual ambient temperature
  2. All OK.

Hard to believe, ain't it!

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  • 9 months later...
KJB5150 New Member

KJB5150

Posted
Posted

"This is all going to depend on where you are getting your weather data from.  The truck is probably more accurate than you think unless you've got a weather station at your house or are pulling local weather data from someone who has one running on weatherbug or weatherunderground, etc. "

 

My 2021 Silverado will display readings of outside temperature in the mid +50's, and then -45 within 10 minutes of each other.  Currently it is reading +45 outside during an actual blizzard when I know it's in the teens outside in Traverse City, MI..  So, no..  I don't believe the truck is more accurate than I think.

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