At what tire size is flash needed?

[Chipe]

I haven't picked up my new '18 JLUS yet. I had the hitch/wiring/aux wiring done, the 2" Mopar lift and then I had 295/75/18's put on my existing rims.

I talked to the dealer about flashing for the different tire size and they said that I needed to pay for a "Service Contract for Tires" and that it would be a minimum of $125. If I did that, they would then send the tire size to Jeep and they would send them back the code?!?!?

If this is so, and if this tire size change makes it necessary for a fast, wouldn't it be more efficient if I bought a Tazer JL?

Thanks all!

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[RubiRob]

Tazer or flashcal would be a great idea especially if you end up going bigger later on, that service contact from Jeep expires after 2 months I want to say .