I have had my wonderful 2017 Torch Red Ct Z-51 M7 2LT since I got it on 9/28/21 with 4081 miles on the OD. I have learned a lot about driving it with the summer only tires in the mild temps just north of ATL GA. There is a "gauge" for tire temp under the performance set on the main digital center between the analogue gauges. But when the temps are in the 40's F. and I warm up the oil sitting in the driveway for a bit before I head out of a short unnecessary errand (just a chance to get behind the wheel really) the tire temp gauge says "WARM" !

I know this is not true as I must be very careful with the throttle or the back wheels spin.

Can anyone comment as to how this is supposed to work? and if something is not working as it is supposed to. It was and is in fantastic shape both cosmetically and mechanically. I had it checked out after getting it from Carvana at the local Hendric Chevy dealer by their Corvette technician The only think I had to do was replace a leaking belt tensioner (still under warranty!!!).

 

Mine usually says "cold" even after driving extensively, just to be clear did it say "cold" before you warmed up the car while stationary?

 

It isn't a measure of when the tires are able to take sudden changes in throttle input. It is a measure of the tire's overall capability to perform which is much more than acceleration. When you go charging into a corner and are trying to get the car to make the turn will the tires stick or will they slide? Will the car plow like a pig or turn?

Tire temp is read from the tire pressure sensors and is used to calibrate the reactions of the stability control system, especially on the track. The OM states the following:
Tire Temperature:
Shows tire temperature status as either Cold, Warm, or Hot. Warm is typical for normal driving while Hot is typical for aggressive driving. Unknown may be displayed if tire temperature information is unavailable.

I suspect the Warm range is quite wide as tires like the Cup2s don't reach their hot performance temperatures until they are in the 190-degree range which is close to impossible to reach during street driving. The standard PSS ZPs probably don't reach their hot performance temp until they are somewhere in the 140-degree range. When trying to Heat Cycle new Competition Tires I found it is very difficult to get a tire up to that temperature even when pushing hard in corners and braking and accelerating at the max permissible on a tight curvy back road even on a hot sunny day. On the track, I gradually increase speed on cold tires until I can get onto straights where I can get the car into the 120 mph or higher range. The high speed and subsequent high rate of tire flexing tend to build up tire heat quite quickly.

Bill

 

Mad*Max thanks for suggesting that I check on cold start.

I just did and the outside temps today are 72F but the initial reading was WARM tires so something not right me thinks!

 

Yes, looks like it is stuck on "warm."

 

Fits what the OM tells you. 72 degrees is Warm. Your tire pressure sensors attached to the rims are reading the temperature of the tire as it sits in its ambient environment. The Stability Control system doesn't care whether or not you just started the car. It only cares about temperature.

Warm tires aren't up to temperature yet and have a long way to go before they are up to temperature. However, they aren't cold tires. With the ambient temp being close to 75 degrees today my car will show a Warm Tire Temp on a Cold Start.

Bill

 

• Frozen (below 32°)
• Cold (32° to 46.4°F)
• Warm (46.4°F to 104°F)
• Hot (above 104°F)
• Overheated

I have not seen Overheated on the display.

 

Bill,

Thanks I will look at a really cold day and see if they read cold before I do any driving. The temp is read from the TPS so either that could be bad or a coding error in the module responsible for that reading?

Curtis

 

Elk,

I will check on a day below 45F to see if I get cold, today it was warm like 72F so that would explain why at cold start it read WARM

 

Someone posted years ago that the temperature list got changed at some point during C7 production, not sure if that's true or if your list is the earlier or later version.
As Bill Dearborn said, "Warm" on the tire temps isn't very warm in the tread rubber.

 

Yours seem to read the same as mine ( you are in the next town from me )

I keep my car in the garage and many times my indicator will state warm even though it's 50 degrees in the garage in the AM. As Bill states "Warm" does not mean you can rapidly accelerate . I drive my car to work on clear days when the AM temps are above 35 ( cause you know the PM temps will be at least 55 to 60 in the winter )

Dave

 

"Warm" is definitely not warmed up. It is just not "Cold."

 

I have a 2019 and all I've seen is COLD, COOL or NORMAL.

 

Same on my 2019 GS, cold can be white with black letters when really cold than white background off and just cold before it goes to cool, only have seen normal once I think in last 4-5 drives as it’s been pretty cold here in NorCal.

 

I have a 2019 as well and this is from the manual:

 

My manual shows the same info, but the dash only shows COOL or NORMAL. I've never seen anything else, even when driving on 110 F+ days.

 

I've seen frozen many times on mine.

 

Any update?

 

Well I need to dedicate a really cold morning to go out uncover the Vette and crank it up and check the reading, so far on the really cold days I have not done this.

I love the All Seasons tire I had installed this week much more comfortable in the relatively cold temps.

Early today I did check it but it was 41 deg F and still the indicator said WARM I will try and check tomorrow morning when the temps should be much lower.

 

If yours is saying WARM at 41F then it is stuck in that reading, unfortunately.