Our car is registered through Trusted Traveler to be used in the Sentri Lanes at the US southern border. We've just renewed registration and were issued new plates (with new plate number).

I know I can update the plate number for the vehicle in the TTP dashboard, through Manage Vehicles > Edit, but before I do that I need to know how long it will take.

When adding an entirely new/separate vehicle there can be a period of several weeks before the new vehicle is approved for use, and you can NOT use that vehicle through Sentri until approved.

However, I'm unsure whether there is wait period for approval of new plates on an existing vehicle (everything else about the vehicle remains the same).

Is there an approval wait period for changing plates in Trusted Traveler, or is it instant and could be used same day? If not instant, then I'll need to plan out the timing so it doesn't impact on our border crossing plans.