Outside temp reading slow

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2019 Cx-9 GT
Is it my car or others with outside temp reading really slow - can take upto 5 min or more to display a stable temp on the guage. Something to show to dealer??
I have 2 other cars and they are quick- less than a min
 
it is slower than most cars i have owned but believe it or not, is acutally faster than one of the vehickes we currently own. As said by Speed3chris1, give it some time
 
Here's my experience from this morning. I park in a garage, so upon startup at 6:30am, the temp reading on the dash was 0c. I let the car idle for 30s or so, then pulled out of the garage and started driving to my in-laws to drop our daughter off for the day. By 6:33am, the temp reading on the dash was -12c, and it stayed there for the rest of the drive.

I see no issue with it, but if it concerns you, raise your concern with the dealer to see if there's anything they can do.
 
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