Either the arm on the actuator broke off (common problem) or the actuator itself burned out (which happens over time).
Probably a blown fuse. What you need to find out is why the fuse blew.
on the rear hatch of your trail blazer ,there are two (one on each side) shocks that hold the door up. thay after time have to be replaced. you can find them at any auto part store or Chevy dealer.
you have an AC leak
Probably the fuse for your power windows look at the manual find out which fuse it is and change it.
Fuel pump could be possibly getting weak. Happened to my blazer.
The blazer must be in park for the rear hatch button to work. If you have the blazer in drive the button will not open the hatch unless it is in park!!! If there is still a problem maybe try checking the fuses! The actuator could be broken in the rear that releases the window so you can open the back. This happened to my 2003 Blazer and my neighbor's 2002 Blazer. By removing the back panel (high likelyhood the panel will break when you remove it) and replacing the actuator that could solve your problem. Both I and my neighbor would have had to order the whole actuator in order to replace the tiny plastic piece that broke. Instead we drilled a whole and rigged it with some tough wire. Works now but we both have broken back panels...even the dealership broke one. Good luck. SEE RELATED LINK for 1997 Blazer
If nothing on the dash (instrument cluster) is working, I would suspect the electrical plug in back is disconnected.
if the 4x4 isn't working then you need to check your transfer case. is it making any noises? or did it just stop working?
Plugged radiator Defective thermostat Low coolant Defective radiator cap Water pump not circulating water fast enough Cooling fan not working
Bad brake booster.
A defective catalytic converter can do that.
The support pistons need to be replaced.