Outside temp reading...
Thread Starter
Burning Brakes
Joined: Aug 2007
Posts: 1,199
Likes: 0
From: SF Bay Area CA
Outside temp reading...
How accurate is your C6's outside ambient temp reading? Mine takes a long time to adjust after the car is started in the morning. Is that what happens with yours? How accurate is it?
Le Mans Master
Joined: Apr 2006
Posts: 5,933
Likes: 13
From: The Beautiful Inland Empire WA.
If you are comparing your reading to the readouts at banks etc......those readings are notoriously inaccurate. Compare a reading in one block to the next.......that said, the temp sensors for GM are also notoriously problematic and are on the inexpensive side and easy to replace as well.
Team Owner
Joined: Aug 2002
Posts: 35,617
Likes: 167
Tech Contributor
Cruise-In 11 Veteran
NCM Ambassador
St. Jude Donor '05-'06-'07-'10
Regarding the Outside Air Temperature sensor.
Further:
Condition/
Display
At start up with the engine OFF more than 3 hours
Displays actual outside temperature
At start up with the engine OFF less than 3 hours
Displays last stored temperature
Vehicle moving above 16 km/h (10 mph) for 5 minutes
Updates temperature display at a slow filtered rate.
Vehicle moving at 51 km/h (32 mph) or greater for 2.5 minutes
Updates temperature display as rapidly as possible.
When the sensor reading is less than the displayed value.
Updates temperature display as rapidly as possible.
When the Front Defrost, Rear Defog and fan up buttons are pressed simultaneously.
Updates temperature display instantly.
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.
If the outside temperature goes up, the displayed
temperature will not change until:
• The vehicle’s speed is above 12 mph (19 km/h) for
five minutes.
• The vehicle’s speed is above 32 mph (52 km/h) for
two and a half minutes.
These delays prevent false readings. If the temperature
goes down, the outside temperature will be shown
when you start the vehicle. If it has been turned off for
less than three hours, the temperature will be recalled
from the previous vehicle operation.
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.
If the outside temperature goes up, the displayed
temperature will not change until:
• The vehicle’s speed is above 12 mph (19 km/h) for
five minutes.
• The vehicle’s speed is above 32 mph (52 km/h) for
two and a half minutes.
These delays prevent false readings. If the temperature
goes down, the outside temperature will be shown
when you start the vehicle. If it has been turned off for
less than three hours, the temperature will be recalled
from the previous vehicle operation.
Condition/
Display
At start up with the engine OFF more than 3 hours
Displays actual outside temperature
At start up with the engine OFF less than 3 hours
Displays last stored temperature
Vehicle moving above 16 km/h (10 mph) for 5 minutes
Updates temperature display at a slow filtered rate.
Vehicle moving at 51 km/h (32 mph) or greater for 2.5 minutes
Updates temperature display as rapidly as possible.
When the sensor reading is less than the displayed value.
Updates temperature display as rapidly as possible.
When the Front Defrost, Rear Defog and fan up buttons are pressed simultaneously.
Updates temperature display instantly.
Last edited by talon90; Jun 9, 2008 at 08:32 PM.
Drifting
Joined: Apr 2006
Posts: 1,276
Likes: 5
From: Ambler Pa.
Temp reading
Mine is fairly accurate, this function is "padded", meaning is does not read in real time. It samples temperature over time and indicates the average value. Rapid fluctuations are not displayed. On initial start, mine seems to need 5 or 10 min. to indicate correctly.
Thread Starter
Burning Brakes
Joined: Aug 2007
Posts: 1,199
Likes: 0
From: SF Bay Area CA
Regarding the Outside Air Temperature sensor.
Further:
Condition/
Display
At start up with the engine OFF more than 3 hours
Displays actual outside temperature
At start up with the engine OFF less than 3 hours
Displays last stored temperature
Vehicle moving above 16 km/h (10 mph) for 5 minutes
Updates temperature display at a slow filtered rate.
Vehicle moving at 51 km/h (32 mph) or greater for 2.5 minutes
Updates temperature display as rapidly as possible.
When the sensor reading is less than the displayed value.
Updates temperature display as rapidly as possible.
When the Front Defrost, Rear Defog and fan up buttons are pressed simultaneously.
Updates temperature display instantly.
Further:
Condition/
Display
At start up with the engine OFF more than 3 hours
Displays actual outside temperature
At start up with the engine OFF less than 3 hours
Displays last stored temperature
Vehicle moving above 16 km/h (10 mph) for 5 minutes
Updates temperature display at a slow filtered rate.
Vehicle moving at 51 km/h (32 mph) or greater for 2.5 minutes
Updates temperature display as rapidly as possible.
When the sensor reading is less than the displayed value.
Updates temperature display as rapidly as possible.
When the Front Defrost, Rear Defog and fan up buttons are pressed simultaneously.
Updates temperature display instantly.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Team Owner
Joined: May 2004
Posts: 82,175
Likes: 1,319
From: McKinney TX
St. Jude Donor '21-'22-'23-'24
Do your other cars use the outside temperature reading in the operation of the climate control system? The C6 does. That's the reason for the delay.
Melting Slicks
Joined: Nov 2007
Posts: 2,942
Likes: 272
From: McKinney, texas DPD Sergeant
i have a many weather station in the back yard always in shade. the vette and my rubicon read about 2 degrees higher, so who knows what's accurate. i would asume thhe weather thing is most accurate
Heel & Toe
Joined: Mar 2008
Posts: 20
Likes: 0
From: Oceanside CA
Instant Temp Update
FWIW-according to a post from a GM service guy on a similar thread from a month or so ago, pushing the rear defrost, windshield defrost, and either of the fan speed buttons will instantly update the temp display to reflect the current outside temp. Works everytime for me.
Dave
Dave
Thread Starter
Burning Brakes
Joined: Aug 2007
Posts: 1,199
Likes: 0
From: SF Bay Area CA
FWIW-according to a post from a GM service guy on a similar thread from a month or so ago, pushing the rear defrost, windshield defrost, and either of the fan speed buttons will instantly update the temp display to reflect the current outside temp. Works everytime for me.
Dave
Dave
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 26
From: Austin Texas
Temperatures vary widely over a short distance in most areas. Austin, Tx has 2 reporting stations aprx 10 miles apart and reported temps can be 15° different.
Elevation change of a few feet can make a noticable difference as can surrounding buildings or vegetation.
If any of you ride motorcycles I am sure you remember the "cold spots", especially when you're riding at night. The cold spots are an extreme example of local temperature variation.
Elevation change of a few feet can make a noticable difference as can surrounding buildings or vegetation.
If any of you ride motorcycles I am sure you remember the "cold spots", especially when you're riding at night. The cold spots are an extreme example of local temperature variation.
Team Owner
Joined: Jun 2005
Posts: 46,295
Likes: 2,596
From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
Seems to be fairly accurate and not slow to me.
My other car last night the temp in my garage must have been 77. I pulled out, and the temp on the display didn't change for a good 10 minutes.
So, I guess the Vette is about standard; sometimes a little shorter, sometimes longer.
My other car last night the temp in my garage must have been 77. I pulled out, and the temp on the display didn't change for a good 10 minutes.
So, I guess the Vette is about standard; sometimes a little shorter, sometimes longer.
Burning Brakes
Joined: Sep 2001
Posts: 937
Likes: 70
From: Ponte Vedra Florida
Team Owner
Joined: Apr 2005
Posts: 35,769
Likes: 148
From: Northern NYs Adirondack Mountains,http://www.visitsacandaga.com.
Seems to be fairly accurate and not slow to me.
My other car last night the temp in my garage must have been 77. I pulled out, and the temp on the display didn't change for a good 10 minutes.
So, I guess the Vette is about standard; sometimes a little shorter, sometimes longer.
My other car last night the temp in my garage must have been 77. I pulled out, and the temp on the display didn't change for a good 10 minutes.
So, I guess the Vette is about standard; sometimes a little shorter, sometimes longer.
I have had outside temp gages in 3 Vettes and 4 other family vehicles.
I find them to be reasonably accurate. Not perfect but close.
How they can calibrate these things to be as close as they are is quite a trick.
to the engineers that developed this gizmo
Safety Car
Joined: Apr 2007
Posts: 3,661
Likes: 3
From: Live in S.Dayton, Work in Cincinnati Ohio
Temp sensors in all GM cars I've either owned or driven have ALWAYS been off by about +/-3-5 degrees when comparing to:
1. Television weather that was on before I got into car.
2. Radio weather reports
3. Bank/billboard signs.
That having been said, I fully understand that often, the TV/radio wx is coming from the airport wx station and there could just be natural variances (unless I'm sitting at the airport). In general, they're off a few degrees and I just look at them as conversation pieces for passengers. Don't really need the gauge to know it's either Heat Miser hot or Arctic Ice cold...
1. Television weather that was on before I got into car.
2. Radio weather reports
3. Bank/billboard signs.
That having been said, I fully understand that often, the TV/radio wx is coming from the airport wx station and there could just be natural variances (unless I'm sitting at the airport). In general, they're off a few degrees and I just look at them as conversation pieces for passengers. Don't really need the gauge to know it's either Heat Miser hot or Arctic Ice cold...
Melting Slicks
Joined: May 2008
Posts: 2,162
Likes: 114
From: Prosper, TX
FWIW-according to a post from a GM service guy on a similar thread from a month or so ago, pushing the rear defrost, windshield defrost, and either of the fan speed buttons will instantly update the temp display to reflect the current outside temp. Works everytime for me.
Dave
Dave