TPMS versus tire gauges
Drifting
Joined: Jul 2016
Posts: 1,481
Likes: 394
From: Virginia Beach Virginia
Mine match. TPS read out appears accurate all the time. Have now abandoned using manual gauge on Corvette. Perhaps I'm mistaken but I think I heard there is a menu to show tire temperatures by color code or could be my Video game
Team Owner
Joined: Oct 2004
Posts: 25,583
Likes: 16,942
Yes, there is, and Zymurgy published the temps defining freezing, warm, and hot tires in another thread recently. Turns out that display is of very little use, because starting at around 40ºF, it indicates the tires are warm. That is not the definition of warm tires.
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Race Director
Joined: Jan 2005
Posts: 10,924
Likes: 854
From: Daytona Beach FL
The tire pressure sensors are quite accurate.
However, they transmit the tire pressure and temperature to the TPMS.
The TPMS display of tire pressures is affected by the elevation the car is at.
For every 1,000 feet above sea level the pressures displayed will be almost 1 psi less than your tire pressure gauge.
Owners in the mile-high city of Denver tell us their display of pressure on the DIC reads 3 or 4 psi less than their tire pressure gauge indicates.
.
However, they transmit the tire pressure and temperature to the TPMS.
The TPMS display of tire pressures is affected by the elevation the car is at.
For every 1,000 feet above sea level the pressures displayed will be almost 1 psi less than your tire pressure gauge.
Owners in the mile-high city of Denver tell us their display of pressure on the DIC reads 3 or 4 psi less than their tire pressure gauge indicates.
.
Race Director
Joined: Mar 2001
Posts: 19,981
Likes: 6,782
From: Bonneville Salt Flats
New sensors (my '18 C7 and my '16 Ram) are MUCH more accurate than the ones in my C5 ('01 and later '04-sensors) have ever been... all of the latter have always been 3#s or more off, and still are.
What is interesting is that OnStar's messages regarding tire pressure readings on the C7 have never had anything to do with any measure that I take... at any time, either via the car's sensors or any number of Meiser and digital gauges!
What is interesting is that OnStar's messages regarding tire pressure readings on the C7 have never had anything to do with any measure that I take... at any time, either via the car's sensors or any number of Meiser and digital gauges!
Race Director
Joined: Jan 2005
Posts: 10,924
Likes: 854
From: Daytona Beach FL
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Last edited by BEZ06; Nov 11, 2017 at 07:47 PM.
Burning Brakes
Joined: Mar 2013
Posts: 1,188
Likes: 239
From: Colorado
The tire pressure sensors are quite accurate.
However, they transmit the tire pressure and temperature to the TPMS.
The TPMS display of tire pressures is affected by the elevation the car is at.
For every 1,000 feet above sea level the pressures displayed will be almost 1 psi less than your tire pressure gauge.
Owners in the mile-high city of Denver tell us their display of pressure on the DIC reads 3 or 4 psi less than their tire pressure gauge indicates.
.
However, they transmit the tire pressure and temperature to the TPMS.
The TPMS display of tire pressures is affected by the elevation the car is at.
For every 1,000 feet above sea level the pressures displayed will be almost 1 psi less than your tire pressure gauge.
Owners in the mile-high city of Denver tell us their display of pressure on the DIC reads 3 or 4 psi less than their tire pressure gauge indicates.
.
Race Director
Joined: Jan 2005
Posts: 10,924
Likes: 854
From: Daytona Beach FL
And here's another post in a different thread where C7 owners are talking about the same lower display of pressure at high elevation that all the previous gens of Vette have had:
https://www.corvetteforum.com/forums...post1593874226
6Speeder originally posted:
And egenity followed up:
.
https://www.corvetteforum.com/forums...post1593874226
6Speeder originally posted:
Originally Posted by 6Speeder
Depends on the altitude at which you drive. Sea level, very accurate. Now, at 6,000 feet they're off, they read low by about 4 pounds. As the altitude goes up, they read lower and lower than actual.
Originally Posted by eginity
I can second this. I am in Denver (5200-5300ft) and the TPS sensors are consistently 3-4psi lower than a quality gauge read.