But like... why though? Why spend that money on an interior redesign when you know you're going to build a brand new third generation GX in 2 years?
Doesn't this go completely against Lexus ideology on spending unnecessary money on things? I was also suspicious on the refreshed IS too but at least that is more believable because that refresh should last ~4 years rather than 2.
Lexus really confuses me sometimes. But you know what, if this is their new direction, to constantly improve their cars, then go for it. Just never ever go back to the years in the late 2000's early 2010's (the LFA was great though).
As an aside though, if this is going to get a major refresh including interior technology, then the last 2 years of the 2nd generation chassis will be so insanely valuable in the future. Old bones, but fresh tech on the inside. Perfect for that niche cult of buyers that adore the GX.
A lot of the interior refresh work had already been done in the 2016 LCP refresh. As I said the LCP J150 is still quite modern so another two years is not a problem at all.
Lexus probably thought the GX would be discontinued after this generation so a major refresh was unnecessary, but sales figures said otherwise. So they changed their minds about cancelling the model.
GX has been the 3rd or 4th best-selling Lexus model behind the NX and RX and trading on/off with the ES depending on the month, so there is most of your answer. It is also one of the most profitable Lexus models, especially at this point when all of the development costs are paid for. The GX is also getting the older Remote Touch tech which Lexus can easily pull off the shelf (same screen as IS) and install to keep buyers happy while they finish development of the 3rd gen.
To
@ssun30's point: Look at the 4Runner in comparison: 2020 got a minor refresh with interior tech, 2021 they added LED headlights and new trim levels... seems pretty silly for a 12 year old vehicle, but it's become one of Toyota's core models so they make minimal updates to keep it relevant.
Owning 4Runners over the years and being connected to the brand in other means, I can tell you that Toyota has actually tried to cancel the 4Runner many times and thought the Highlander could replace it while being easier and cheaper to develop and maintain. The 2014 refresh was to be the last for the 4Runner, ever, and then as we saw, sales rose, and rose, and rose, and it is now setting sales records 12 years after launch with incredibly high customer loyalty and dealer profit. That means there were no plans for a 6th gen 4Runner until the business case was obvious and unavoidable - and same for the GX - which sent Toyota back to the drawing board late in the game.
A lot of the early rumors and talk about TNGA-F/F1 were that it happened so much later than the unibody vehicles because Toyota wanted to kill the Tundra, Sequoia, 4Runner and GX which would have drastically reduced the scale of needing something like a BOF TNGA platform in the first place. Then the massive consumer shift to SUVs and Toyota/Lexus USA fighting for BOF products meant Toyota didn't really commit to any of those projects until 2016-2018 which is why all of them are so late with patchwork refreshes over their current life cycles.