No, GM vehicles have not such device.
If you are thinking of an inertia switch, no.
My 2012 silverado shuts off around 98ish.
If you mean a inertia switch that shuts off the fuel pump in case of a wreck or something, No. The computer shuts it off if the engine is not running.
Closing the door turns off interior lights on a 1997 Chevy S10 because there is a switch in the door jamb that closes when the door shuts. When the door opens, the switch opens.
Not sure what year or model you have but the small button near the headlight switch on my 1998 S10 shuts off the interior dome lights. It is called the dome light interrupter.
The fuel gauge on a 1985 Chevy Silverado will read full all the time if the sending unit is defective or the wire has come loose. When the tank is full, the sending unit normally shuts off which cause the gauge to read full.
The ecu shuts down at 99mph.
There is not one!!! The fuel pump is controlled by the oil pressure. When the oil pressure goes to 0psi the fuel pump shuts off.
there is a second oil pressure switch that shuts off the fuel pump if theres not enough oil pressure
A pressure switch a valve that shuts off the unit when the pressure is to low or to high
is there a emergency switch that shuts the fuel pump down
If the vehicle is involved in a serious accident the inertia switch shuts off the fuel pump.