cause when you shut off the van the power to the gauges is cut off completely, so the gauges will stay wherever they were at until the next time you start the vehicle.
C. Temperature and Sanitizer Gauges
Check the gauges. One or more of the gauges must be out of normal range to trip the "check gauges" light.
gage of temperature go to hot position but is not hot the engine check gages light come on
It means that you have a low reading on one of the gauges and you need to address the problem.
Try checking your fuses.
The temperature gauges on cars are in Celcius.
Instruments used in taking temperature in a cargo tank include float gauges, radar, ultrasonic or microwave gauges, pressure gauges and tape gauge systems.
if it is all the gauges it's probably a fuse, or just some, like speedo and odometer it could be a bad wire
There was a recall on the "cluster pack" for that year and model so I was told by the Chevrolet dealership. I had to take mine in to be replaced (for free) at the dealership. Spedometer didn't work, gas gauge didn't register etc. etc.
The coldness
All house clocks with internal temperature gauges are automatically set to the temperature within the area. These gauges only tell what temperature the room is, not change the temperature, like a thermostat.
My older Blazer has a 'check engine' light and also a 'check gauges' light. When the 'check gauges' light is on, check your other gauges like the temp and volt gauges. One of them may be showing something different than normal.