the gauges move in the first place bacause of air pressure/temp so when u shut off your car the pressure is released because the gauges would break more frequently otherwise.
What car? low fuel level???
The gauges on his old truck were still as reliable as the day he drove it off the new car lot.
You don't say what kind of car but most require the gauges to be removed to take it off.
To change the gauges on a VTI the dashboard gauge bezel needs to be removed from the car. Once the bezel is off the gauges will be easily accessible. Replace the gauges.
most likely engine problems but maybe it doesnt move for a while so it wants to turn off
When a car horn goes off while the car is switched off, it means the horn has a bad ground.
loose battery connection, or dead battery.
how do i turn off the headlights of my toyota 4 runner 2000 while the car is off?
yes they do work while the car is off becaise i drive a car and i got a phone charger and it still worked wit the car off.
If you don't disconnect the battery when installing gauges, it is possible to create a short circuit and blow a fuse. Some gauges have power present even when the ignition switch is turned off.
Definitely off.
Check the gauges. One or more of the gauges must be out of normal range to trip the "check gauges" light.