We are moving to Zurich from the U.S. and plan to bring our 2016 Honda Pilot EX-L there.

Does anyone know what modifications are needed to be able to register it in Switzerland? Thanks!

You need to do a complete European homologization (most expensive part is probably exchanging the lights).
Is it worth it for such car?

sell it and buy a different car when you get here.

Even if you go through all the hassle of importing it, they are not sold in Europe. Therefore nobody will ever want to buy it from you here when the time comes to sell it.

And you will have challenges finding someone to service it. It’s probable you could find someone, but expect to pay ‘tip-top’ price.

sell it and buy a car here.

it's a boring car - not worth spending thousands and days of time on getting it legal and then still being stuck with car that will be hard to sell here.

As many here already have said: don't bring this car from US to Switzerland.

It will cost an arm and a leg (1/4 of the new car price for starter would be a ball park asesment) to modify it, to ship and get it through customs and register it here. And the annual cost will be much higher, then you will get for almost any similar car made for CH and EU. Due to the big engine (3500cm3) and the bad Energietikette (it would be E at best, more likely G) and poor emissions (anything above 130g/km is undesirable), just the annual vehicle tax (in Zurich) will be more than 600 CHF. It is much better to have a lower volume turbo charged engine for that matter, since the same car with 2000cm3 turbo engine would cost you half of that annually. And a hybrid would be less than half of that half.

I left a 5.4L snake to age in CT for a reason. Will have to wait just 9 more years, if ever, to get it here as a "historical vehicle" (unless it will rust into dust due to the lack of TLC).

I found that the new car in CH is much more expensive than it is in the U.S.

For instance, a Benz/BMW is almost 60% higher priced..

Thanks for the suggestion. Out initial thought is that since I have a relocation package and 2 kids (and we are used to driving around/road-trip in the US), we will bring it over.

Maybe it is not worth it.