Those two levers are to release your seat belt if you are involved in an accident.
Usually located at the bottom of the emergency brake handle - may have to remove trim for access
To tighten the emergency brake cable on a 1990 Geo Prism, start by depressing the brake pedal. Next, locate the parking brake equalizer bar. Rotate both rear tires to feel the brake shoes slightly drag against the brake drum.
Parking brake (also known as emergency brake) foot pedal expands the rear brake shoes against the brake drum holding or stopping the vehicle in an emergency situation not as effective as regular service brakes
Check your brake fluid level in your brake master cylinder in the engine compartment and see if it is down.
To release the emergency brake on a 1990 Corvette, locate the emergency brake lever between the driver's seat and the center console. Pull the lever up slightly to disengage the locking mechanism, then push the release button on the end of the lever while lowering it back down to its original position. Ensure the vehicle is in gear or park before attempting to release the brake. If the brake is stuck, check for any obstructions or consult a professional for assistance.
I'm not a mechanic but I would start by checking the brake fluid level in the brake master cylinder in your engine compartment
under dash on driver's side next to emergency brake pedal.
If it is the same engine, both either standard or auto, might have to check if the 1990 had over drive, cause the 88 or most of them did not.
installer.com
.054 inch , according to fordparts.com
it means get your brakes fixed xD
With Nissan trucks from the 1990's, you pull and release the e-brake handle several times. If everything is working in the rear brake drums (springs, actuators, adjusting stars) then the e-brake will be adjusted. Sounds easy enough, but if things are seized up in the drum or cable, this method won't work.