A keyless entry remote on a 2001 Toyota Sequoia can not be reprogrammed at home. The key must be taken to a dealership where the engineers can program it with new settings.
take it to the dealership
Check your owners manual. If you don't have one check related link below. You may have to register as a Toyota owner / exc. to be able to get access. Hope this helps
You can get info on how to program any remote for vehciles at programyourremote.com all info needed was there and made it easy.
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