Passenger seat is fully reclined and won't stay upright

Question edited for clarity and errors.
Question moved from Seat, (Spanish car company) to PT Cruiser.

You would be better to fly, or put her in the back seat with lots of pillows and use the centre lap strap as a seat belt.

If you pull the seat all the way forward and remove the headrest, you should be able to see the maximum recline, but electric seats have a stop on them.

If it's binding the circuit breaker will shut off the recline motor. You have to replace the entire back frame to replace the motor

Not sure if you can. Was the motor not operating? Shoot 12 volts to it through jumper wires, see if that helps.

Should only be 4 bolts holding it in ?, If You have the tools toremove lube up the frame , but be very careful about the recliner , usually a heavy duty Tension spring could get dangerous if you mess with it ! any Uposery shop should be able to fix it

2010 Equinox drivers side won't recline.
Found the cable popped off recline mechanism.
Pulled back the lower seat panel near the recline lever after removing one torque screw located on said panel which is on the back of seat. Works great now. By the way, Freedom Chevrolet in San Antonio, Tx, without diagnosis, wanted to charge my girl friend $860 to replace the whole assembly.

you have to remove seat cover on back and bottom of seat . there is a long plastic clip sowed to seat covers . push in and un hook then you can pull seat cover up to see bolts. dont pull to hard or you will rip seat cover .

usually not. seat is electric and adjusts to extent allowed by that. Passenger seat has a back release on it though.

Have you tried pulling up on the backrest while operating the switch?
It sounds like it was run past the gear mesh.

check the adjusting bar on the pass. door side of seat.