tcinla

My C7's temp guage seems to be really slow to update. It was 103 in Pasadena the other day and the display showed 80 (from the parking garage) until I was in los angeles, about 14 miles away before the display changed to 102 degrees. It was actually 90 at the time as I checked weather .com from my phone.

Is that normal ?

red62vette

I noticed something similar on mine the other day. It's not a critical function so I'm not worried.

joemessman

Yeah. Mine does that sometimes. I can go several hours without an update. Only does this about once a month or so at most, or......after I wash it sometimes. I must get water on the sensor.

AZ99FRC

Where is the ambient temp gauge? I'll be damned if I can find it; on the car or in the manual!

JoesC5

I don't understand why GM programs it to operate that way.

I can get into my Mercedes in the garage and as soon as I turn the key it displays the temp in my garage. As soon as I back out of my garage, it shows the new outside temperature almost immediately.

The heat/AC/vent system performs way better in my Mercedes than in my Corvette.

2K14C7

Mine has done it before. On a restart it's fine again.

RonC7

It does that so the temp display is not affected by heat soak when parked. Otherwise, the temp might indicate 100 after being parked for a few minutes on a 70 deg day.

Temp is displayed on the top line of the info screen.

Gearhead Jim

The C5 and C6 had the info in the Owner Manual- the outside temp would not update until the car had been driven for x minutes at y (slow) speed; or fewer minutes at a higher speed. And there was a way shown in the Service Manual about how to force an instant update.

So far, our C7 seems to be doing the same but I haven't yet found the numbers about how fast/how long.

EDIT:
On our C5 and C6, driving around town doing errands but never going far/fast enough to get the update, you could literally drive all day without the temp ever updating.

budgreen3564

Ambient temperature would be that in the car. The thread should be about outside temperature

AZ99FRC

Thank you for answering my question! I looked at that screen a hundred times without seeing it!

eboggs_jkvl

Per manual

Sensors
The interior cabin air temperature
and solar sensor on top of the
instrument panel near the
windshield monitors the solar heat
and measures the initial interior
cabin temperature.
The climate control system uses the
sensor information to adjust the
temperature, fan speed,
recirculation, and air delivery mode
for best comfort.
The humidity and windshield
temperature sensor is on the
windshield glass inside surface near
the rear view mirror. The automatic
climate control system uses this
sensor to receive information.
If any of these sensors are blocked
or covered, the automatic climate
control system may not work
properly.
There is also a sensor located
behind the front bumper. This
sensor reads the outside air
temperature and helps to maintain
the temperature inside the vehicle.
Any cover on the front of the vehicle
could give a false reading in the
temperature.


I don't see anything on time or mileage needs to get the temp to reset. Got to be somewhere but it is eluding me.

Elmer

madrob2020

My A/C wasn't working satisfactorily till I realized my radar detector suction cupped to the center of windshield & low was blocking the top of the dash sensor (at times depending on direction driving). It was putting the sensor in shade causing it to interpret the temp was cooler than it was. Raised it about 3-4" & problem solved!

Gearhead Jim

I hope so but am not counting on it. Both the car itself and the Owner Manual don't seem very interested in telling us some of the things that the "unsophisticated" C6 would tell.

eboggs_jkvl

No ****!


Elmer

JoesC5

My Mercedes has the outside temp sensor and it doesn't have the l-o-n-g delay in the temp update and the heat/Ac/system works perfectly.

laread

I am having the same problem with my C7. On my C6 you could push 3 buttons simultaneously that would update the current outside temperature immediately. Is there a similar function on the C7?

Skid Row Joe

At street level on a hot freeway? Completely normal. My Mercedes Benz showed 108° running at freeway street level on a 100° day.

Skid Row Joe

It is about outside temperature. Some are not grasping that. Probably don't understand the OP's post.

Bill Dearborn

In this case Ambient temperature is considered to be outside temperature since he is talking about the environment surrounding the car. Definition: the temperature of the surrounding environment; technically, the temperature of the air surrounding a power supply or cooling medium; abbreviated ABM. Ambient room temperature ranges from 68 to 77 degrees Fahrenheit. Word Origin. based on ambient meaning 'surrounding'

Bill

madrob2020

Really, 8 months later & a response to a dead thread. Laread, who posted 1st today, is new so I get he was probably perusing past threads to learn all he (we) can, but you guys?