Outside air temp

[bbcmalibu]

My outside air temp is always reading a least 20 degrees warmer than it is. Everything else works just fine on the dash and NAV. Guessing sensor? Still under warranty. Take it in or try and pull a fuse and reset it?

[ChiliPepper]

I would at least try to reset it first

[NJSATXR]

The thermometer in this car is very slow to update.
Not good....but normal.

Do the ole "instant reset".

Press and hold the a/c button. While holding it down, press the "recirc" button.

It's usually used for diagnostics, but it works.

It will update the temp immediately.

[hand-filer]

Originally Posted by bbcmalibu

My outside air temp is always reading a least 20 degrees warmer than it is. Everything else works just fine on the dash and NAV. Guessing sensor? Still under warranty. Take it in or try and pull a fuse and reset it?

Take it in and see what they say. I raised the issue with then in Sept 07'. They said they'd get back to me when fix was available.
I'm still waiting for the call

[john95SW2]

Sensor is likely bad - had the exact same problem on our Venture - replaced the $10.00 sensor, all is good again

[hand-filer]

As it was explained to me by the service tech., it is not the sensor. It is the calibration of the body control module. It is not updating often enough.

[john95SW2]

Originally Posted by hand-filer

As it was explained to me by the service tech., it is not the sensor. It is the calibration of the body control module. It is not updating often enough.

Interesting.... I think just for fun I would pull the sensor and at the minimum I would check its output with a multimeter at different temperatures and compare it to the chart to see if its output is correct.

[hand-filer]

Originally Posted by john95SW2

Interesting.... I think just for fun I would pull the sensor and at the minimum I would check its output with a multimeter at different temperatures and compare it to the chart to see if its output is correct.

No need to pull the sensor to check something that is functioning correctly. The very fact that the temperature updates (and it's bang on) when you follow the procedure in post #3 is verification that the sensor is providing the correct signal to the BCM.

[john95SW2]

Originally Posted by hand-filer

No need to pull the sensor to check something that is functioning correctly. The very fact that the temperature updates (and it's bang on) when you follow the procedure in post #3 is verification that the sensor is providing the correct signal to the BCM.

The OP said "always" and didn't chime back in to say that the reset worked for him... hopefully we'll hear back...

[hand-filer]

Originally Posted by john95SW2

The OP said "always" and didn't chime back in to say that the reset worked for him... hopefully we'll hear back...

You are correct. It is possible that his problem could be sensor related.

[homerec130]

Mine takes about 3 miles to update all the way (without the reset). Not bad this time of year, but in the spring when it is cold in the morning and warm at night and I try to kick the a/c without looking it blows heat until I reset it.

Homer

[gmsuv]

I'd check to see if the sensor is even mounted on the bracket if front of the radiator. I had a oil change and the guy tried to take out the filter from the top and knocked the sensor off the clip. The sensor was hanging by the a wire real close to the radiator and was picking up heat there and showing higher heat on the dash.

[bbcmalibu]

I have not done a damn thing since a posted this thread but today the weather channel said it was a high of 76 today and my Vue said 89? It's still under warrenty and it's going in!