Temp Light on but gauge ok 2022 6.2

[cef2lion]

The other day the temp light came on but gauge showed ok. 35F degrees out. Not towing. No check engine light. 2022 ZR2 6.2 13K miles. Light stayed on when engine was shut off then went off. Coolant level was ok. On restart the light lit with all the others then went out per normal. Has not happened since or before. The menu doesn't have an option that I can find to display engine temp just transmission. 

[Paul Hurtt]

Do you have “ On Star” if so, you can call and ask for a diagnostic report. If there was a code, you can look it up or take it the dealer to read the memory. My 2021 1500 3.0  ( 49K miles) had a check engine light for no apparent reason. Called on star, got the report. Dealer said it was the “ coolant flow control valve” They changed the valve. Warranty item, so other than an inconvenience, no issue. 

[redwngr]

No numbers on  it but there the truck will have a coolant temp gauge you can turn on ... 

 

It will have a 'red zone' to indicate it is too hot. 

 

 

They are supposed to also have several DIC messages for high coolant temp conditions.

[cef2lion]

Thanks all. I checked my app but nothing there. Will talk Onstar and my dealer. 

[redwngr]

 

 

 

I don't know why the light is on, but the coolant temp gauge looks this this when displayed on the dash display shown in your picture.

 

You might need to go into the dic setup to enable it and to place it in the location you prefer.

 

 

[cef2lion]

Thanks. I do have the temp gauge displayed at bottom of the display. It showed normal when the temp light was on. Not sure if the 6.2 has more than one sensor?

[Santiago Augeraud]

I’m dealing with the exact same issue. My temperature light came on twice yesterday while driving, even though the gauge looked normal. Every time I pull into a shop and shut off the engine, the light disappears, and the mechanics say they can't diagnose it without the light active. It eventually came back on while I was driving again, so I’m headed to a third shop now for a full diagnostic. Did you ever find out what was causing yours?