behind rear seat
Power seat relay location for 1996 Blazer
To get a power seat moved back once the motor is dead there needs to be a handle on the side. If no handle, you will need to remove the seat, unplug the motor, and replace with a new one.
Likely the seat motor
Probably the seat motor
First, check if the power seat fuse is intact and not blown. If the fuse is okay, the issue may be with the seat's motor or wiring. Inspect the motor and wiring connections for any damage or loose connections. If everything looks good, the motor itself may need to be replaced.
seat fuse location for 1996 blazer
Fuse location for passenger power seat on 2002 chevy tahoe.
There are a number of reasons why your power will not raise or lower a front seat. It may be that your power source is not properly connected or that a motor has died.
You start by figuring out what's wrong with it. If the motor still buzzes, then it still has power. So you need to see if the motor is failing, if the seat came off the track, or if some component has seized and is preventing the seat from moving.
replace motor under the seat
In the fuse panel