2000 Toyota Sienna had new keys done at dealership now van wont crank and security light keeps flashing

Question

2000 Toyota Sienna had new keys made, now it won't crank. The security light keeps flashing.

Answer 1

The 2000 Sienna had transponder-equipped keys. If the security light is flashing, it's likely the dealership did not pair the new transponder key with your vehicle, or did not do it properly. Many vehicles allow the user to program keys themselves. Check your owner's manual for instructions.