jsg
Posts: 19
Joined: Tue Jun 20, 2017 10:08 pm

Bolt and Outside Temperature

Sat Sep 02, 2017 5:58 am

Today I was driving in San Francisco where the outside temperature was 93 degrees Fahrenheit. In the Bolt, the temperature readout on the infotainment screen (upper right hand corner of screen) read 74 degrees! How could it be so far off? The car is very clean, nothing that I know of obstructing any sensors. I had the air-conditioning on and the inside temperature was set at 68 degrees,

Anybody notice this discrepancy between outside temperature and the digital readout on the screen?

Thanks!
Jerry

SeanNelson
Posts: 1298
Joined: Tue Jul 05, 2016 2:43 am
Location: Vancouver, BC

Re: Bolt and Outside Temperature

Sat Sep 02, 2017 3:28 pm

jsg wrote:Today I was driving in San Francisco where the outside temperature was 93 degrees Fahrenheit. In the Bolt, the temperature readout on the infotainment screen (upper right hand corner of screen) read 74 degrees! How could it be so far off? The car is very clean, nothing that I know of obstructing any sensors. I had the air-conditioning on and the inside temperature was set at 68 degrees,

I seem to recall that there was a service bulletin for an issue with the thermostat wiring - but it may have been for the HVAC thermostat rather than the external temperature sensor.

dandrewk
Posts: 239
Joined: Sat Dec 17, 2016 6:29 am

Re: Bolt and Outside Temperature

Sat Sep 02, 2017 7:24 pm

Did you park in a garage overnight? Every car I've owned with outside temp readouts takes several minutes to register correctly, and I suspect that is by design. It's probably a built in latency or perhaps a moving average. This is to prevent sudden spikes that might occur when stopped behind another vehicle's hot exhaust or blazing hot highway surfaces.

It's all about air flow, so the faster you go, the faster it will "catch up". Thus, driving around the City will take a longer time, especially if you park in an protected environment.

jsg
Posts: 19
Joined: Tue Jun 20, 2017 10:08 pm

Re: Bolt and Outside Temperature

Sun Sep 03, 2017 7:36 pm

dandrewk wrote:Did you park in a garage overnight? Every car I've owned with outside temp readouts takes several minutes to register correctly, and I suspect that is by design. It's probably a built in latency or perhaps a moving average. This is to prevent sudden spikes that might occur when stopped behind another vehicle's hot exhaust or blazing hot highway surfaces.

It's all about air flow, so the faster you go, the faster it will "catch up". Thus, driving around the City will take a longer time, especially if you park in an protected environment.



Thanks for responding. I think you're right, I've noticed after driving around the temperature seems to become accurate. And yes, the Bolt is parked in a garage.

davidcahill
Posts: 2
Joined: Fri Feb 09, 2018 1:05 am

Re: Bolt and Outside Temperature

Fri Feb 09, 2018 1:08 am

My Chevy Bolt's outside air temperature sensor has been reading 60 degrees all day, even though the outside temperature has varied from about 50 degrees to near 80 degrees. This is the first problem I have had since leasing the car six months ago.

Is there any way reset/reboot the temperature sensor?

SeanNelson
Posts: 1298
Joined: Tue Jul 05, 2016 2:43 am
Location: Vancouver, BC

Re: Bolt and Outside Temperature

Fri Feb 09, 2018 1:22 am

davidcahill wrote:Is there any way reset/reboot the temperature sensor?

You could try rebooting the infotainment system, just in case the issue is a "stuck" display rather than a stuck sensor. You do this by holding down the physical "Home" and "Next Selection" buttons (next to the volume control knob) for around 10 seconds.

davidcahill
Posts: 2
Joined: Fri Feb 09, 2018 1:05 am

Re: Bolt and Outside Temperature

Mon Feb 12, 2018 7:20 pm

Thanks! More info: The sensor does reset itself every morning on initial startup. Then it resets itself *intermittently* through the day a couple of times. Or not.

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