Regarding Gray Market in 2024. Your best option is to send it in and let the Factory Service Center take a look at it. Depending on what needs to be repaired, they may be able to perform the repair, but you need to be aware that they may not. One example that I was told several years is if the part that needs to be repaired/replaced causes the serial number to be changed or the model to be changed (some overseas units have different model numbers), our team cannot perform the repair.
As far as the warranty is concerned, that really depends on where it was purchased and what kind of warranty it has. Sometimes, our team can get paid for the repairs, but most of the time, they can't. Most overseas warranties only pay for repairs in their regions, not internationally, but again - the only way you'll know is to send it in to have our team take a look!
If you can register your gear, do so at https://canon.us/account and send it in for repair that way. If you can't, fill out the form at https://canon.us/repairform
I sincerely hope this helps!
