2002 Sienna: Have been using spare key (no chip) - was working fine, then several days ago, was hard to remove. Happened a few times - If i started the car, then turned it back it would let me remove it. Now it is completely stuck in the ignition. Turning steering wheel doesn't help. Have read that it may be a solenoid (shift lock solenoid/ECU mechanism), or something to do with a "Park mode" sensor. Have just spent a bundle on the car so would appreciate a fix not requiring $$ if there is one!