Toyota are not very logical, I would have thought a big ball on your lap might be the airbag, but being Toyota it could be the seat belt warning as someone else suggested, get someone to help and check the battery, but the car is controlled by computer so anything that goes wrong is a problem, I have vowed never to buy another Toyota, I have never driven a good one, always problems with brakes or electrics, I`m happy with my BMW
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