I had the same problem, and since I couldn't find the answer here, I had to figure it out myself. Luckily, I was able to find this site again, so here's what worked for me.
Push the Setup button three times, until your driver display says something like "Press Reset for system check".
Then push Reset. The system check will start, rotating through a series of checks.
About the fifth or sixth check will be the tire pressure. It'll say something like "Hold Reset if tires are OK". While that's up, hold the Reset button. After 3 or 4 seconds, the tire warning light will click off. You need to be ready for it, because you don't get very long.
Sorry if I don't have the prompts exactly right. I remembered them the best I could, and since I held in the Reset button, I don't get the one about the tires being OK any more.
How to reset the low tire pressure warning if the vehicle does not have the "Message Center"
The low tire warning indicator light will flash three times as the low tire warning system begins to initialize.
This information is detailed and illustrated in the Owners Manual - See "Related Questions" below
check brake fluid level.
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Make a sign that says Tires 4 Sale! then light tires on fire and people will come to check it out.
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