Straight from the 2006 owners manual. You can just do it for the passenger seat if you want to. If not.... Obviously you have to do this twice.... once in the drivers seat.... and once on the pass seat.
1. Turn the ignition switch to the RUN (or ON) position. (DO NOT
START THE ENGINE)
2. Wait until the safety belt warning light turns off. (Approximately 1
minute)
• Step 3 must be completed within 50 seconds after the safety belt
warning light turns off.
3. For the seating position being disabled, at a moderate speed, buckle
then unbuckle the safety belt 9 times, ending in the unbuckled state.
(Step 3 must be completed within 50 seconds after the safety belt
warning light turns off.)
• After Step 3, the safety belt warning light will be turned on for three
seconds.
4. Within 10 seconds of the light turning on, at a moderate speed, buckle
then unbuckle the safety belt.
• This will disable the BeltMinder feature for that seating position if it
is currently enabled. As confirmation, the safety belt warning light will
flash 4 times per second for 3 seconds.
• This will enable the BeltMinder feature for that seating position if it
is currently disabled. As confirmation, the safety belt warning light will
flash 4 times per second for 3 seconds, followed by 3 seconds with the
light off, then followed by the safety belt warning light flashing 4 times
per second for 3 seconds again.