This is all a crock of dogs doo dars! When a Hybrid has an HHC, there is an HHC certificate to print out. The equipment used stores the vehicle chassis number, uploads those details to Toyota and can be viewed / printed off by any Toyota dealer that logs onto the Toyota Tech system If anyone tells you there is no paperwork I can say with hand on heart that's a pile of carp! YOU GET AN HHC CERTIFICATE if it has been completed, if you don't have one go back to your dealer and get them to print it out for you If you are told there is no paperwork, change your dealer! Rant over