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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
 

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Only when I drive out of the attached (cooled) garage. It takes a fair bit of time to adjust to OAT, but even then, how do you know if it is accurate? When I drive past a bank or other temperature displaying sign, it usually shows no more than a 2-3 degree variance.
 

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In Berkeley yesterday, mine was reading very close to other measurements of the air temperature. Certainly within a degree or two. So I wonder if yours has a problem. I am not sure where the thermometer is mounted, but it seems responsive to changes in temperature. It was really hot around the Bay yesterday. At 7:00 in the evening it was still 86, at the waters edge at the Berkeley Marina. At least the Bolt air conditioner seems to work well.
 

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I drove in the san jose, south bay area and my temperature was within 2 to 3 degree of what google was tell me.
There is a high chance your sensor is busted
 

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Mine seems as close as any car thermometer ever is. How long did you give it? Is it consistently wrong over many trips? What was your source for 93 in SF?

Wow. 93 in San Francisco. The folks over there must all be bitching an kvetching like crazy. I swear if it gets over 78 in the City, everyone goes on and on about how hot it is. :laugh:
 

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Mine seems as close as any car thermometer ever is. How long did you give it? Is it consistently wrong over many trips? What was your source for 93 in SF?

Wow. 93 in San Francisco. The folks over there must all be bitching an kvetching like crazy. I swear if it gets over 78 in the City, everyone goes on and on about how hot it is. :laugh:
SF set an all time high on Saturday, 105. My Bolt in Berkeley registered over 100. Payback for cancelling the Paris Climate Accord, i am guessing.:nerd:
 

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I am also in the SF Bay Area and had similar issues with the thermometer being off by 20-30 degrees over the past several days. Took it in today for a prescheduled appointment and they found nothing wrong because it wasn't acting up today. Also having some other issues that they couldn't address. Not thrilled with Chevy service at the moment. Let us know if you find out the problem.
 

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Outside temperature display issue

My outside temperature display decided to stay at 81 degrees yesterday. I live in San Joaquin Valley, and wish it were so. I did nothing out of the ordinary, turning the Bolt off/on over course of normal driving day, and the voila at the end of the day it operated normally. I always keep car plugged in at home regardless of charge level due to the heat, 100 degree average in garage. Slightly higher outside, and much higher unshaded.
 

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My car is in the shop for an ambient temperature sensor fault. It caused my A/C not to function.
I didn't look at the display to see what it was reading, I was fiddling with the heater controls thinking I had something set wrong (only had the car for a few days).
According to the tech if the car can't tell what the outside temp is, it can't figure out if it needs to run the A/C or the heat!
Apparently a bad sensor indicates cold, because I was getting some hot air blowing on me on a hot day!
I let you know when they resolve the issue if it indeed was the ambient temp sensor that was bad, or something else.
 

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Ambient temperature sensor issue?

My car is in the shop for an ambient temperature sensor fault. It caused my A/C not to function.
I didn't look at the display to see what it was reading, I was fiddling with the heater controls thinking I had something set wrong (only had the car for a few days).
According to the tech if the car can't tell what the outside temp is, it can't figure out if it needs to run the A/C or the heat!
Apparently a bad sensor indicates cold, because I was getting some hot air blowing on me on a hot day!
I let you know when they resolve the issue if it indeed was the ambient temp sensor that was bad, or something else.
Turned out to be 3 O-Rings were leaking in the "Drive motor battery cooler".
 
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Turned out to be 3 O-Rings were leaking in the "Drive motor battery cooler".
Interesting. I wonder what in the world the drive motor cooler has to do with A/C? I wonder if this is the same failure as in the "Transmission Leak" thread?
 

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My understanding is that the AC unit does all the cooling, through a series of isolated 50/50 antifreeze loops. One for the car interior, others for the motor/gearbox, battery, inverter, DC-DC converter and charger.

[edit] The AC cools the cabin, and chills the coolant loop for the traction battery. The motor/gearbox, inverter, accessory battery charger, and traction battery charger are all cooled by an antifreeze coolant loop through the radiator and fan only...no AC chilling.
 

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Mine has worked well for almost 4 years. Today it was stuck at 73 degrees and it was 89 out. That did cause the air conditioner to not send cool air in. I am hoping it magically clears itself up. Toggling the power on and off did not clear it. Senor or computer issue, who knows?
 

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I noticed before when Android auto is on the screen the temp is often not correct. I assume this is due to latency with google fetching the latest temp for your location. Exacerbated when you're out of cell range.
 

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It seems to be up to 5F higher than real temps, at least according to my Apple Watch which gets temps from nearest reporting location. In colder times of the year, it seems a bit closer to accurate. Maybe it is temps from sitting in direct sun, driving on asphalt which absorbs heat, or maybe it is just not all that accurate.
 

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Only when I drive out of the attached (cooled) garage. It takes a fair bit of time to adjust to OAT, but even then, how do you know if it is accurate? When I drive past a bank or other temperature displaying sign, it usually shows no more than a 2-3 degree variance.
I believe I am having the same problem
 

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I believe I am having the same problem
Get an OBD II adapter. Install Torque Pro. Download Telek's PIDs. There are four ambient temperature readings from the thermistor in the lower grill of the car. Three give immediate readings. The reading on the dash is a buffered average over some length of time...maybe several minutes.

 
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