New Jimny with warped discs?

Discs should wear evenly so that definitely isn't right and would likely cause some wobble as the breaking will be inconsistent across the axle. I'd take it up with the dealer.

Dealer are looking at it tomorrow.

Let us know what the dealer says - I'm now going to check mine in daylight.

I had the "pulsing action under braking" just as Bob1050 described. I changed my discs but the problem was not with the discs - the run-out with a DTI gauge showed all run-out to be negligable.
Nevertheless I changed the discs but found the problem was with the sliders in the calipers; these had old dry grease on them and were not sliding, and I believe it was these that gave the sensation of warped discs.
I'm a bit miffed beccause I went to the expense of changing the discs which were not old at all!

until the new ones get warped too !! ha ha like that lol, mines started a pulsing brake stop lately, how i laugh when something else needs fixing.

The new one has the same issues as the old, if a disc is not 100% - steering wobble. If wheel balancing is not 100% - steering wobble.