Overview This generation Lexus LS… it’s a different animal. Not the old LS430 days. Not even close. You’re looking at VXFA50/VXFA55 and GVF50 chassis cars (2018–present), and Lexus went all-in on complexity. More gears, more electronics, more integration. Cleaner on paper. Messier in the real world. Two completely different setups live under the same badge:…

Overview The fourth-gen Lexus LS. Big car. Quiet. Over-engineered in a very Toyota way. And when it comes to the tranny and driveline—yeah, it’s good… but it’s not magic. I’ve seen a lot of these in the shop. LS460, LS600h L, high-mileage highway cars, garage queens, neglected ones with black fluid that looks like used…

Overview The fourth-gen Lexus IS (2021–present) didn’t reinvent anything underneath. Same basic drivetrain philosophy. Same Aisin-based automatics. No DCT experiments. No CVT nonsense. Just torque converters and planetary gears doing their job. And honestly? That’s why these cars don’t show up on tow trucks with grenaded transmissions every week. In my experience, this platform is…

Overview The third-gen Lexus IS (2014–2020) isn’t what I’d call a “problem transmission” car. Not even close. I’ve had plenty come through the shop with 120k, 150k miles (193k–241k km), original tranny still working, no drama. But. That doesn’t mean they’re perfect. Nothing is. What you’re dealing with here depends entirely on drivetrain. RWD cars…

Overview This generation Lexus IS—2006 through 2013—runs Aisin gearboxes across the board. No weird CVTs, no experimental junk. Just traditional torque-converter units. Sounds reassuring. And honestly, most of the time, it is. But here’s where people get it wrong. These transmissions don’t usually explode. They don’t just grenade out of nowhere like some other brands….

Overview The fourth-gen Lexus GS (2013–2020) is one of those cars that tricks people. Looks clean. Drives smooth. Feels bulletproof. And for the most part—it is. But spend enough time in a shop, and patterns start showing up. Not catastrophic “tranny exploded on the highway” stuff. That’s rare here. What you actually see is weirder….

Overview The third-gen Lexus GS (2006–2011). Good cars. Solid build. But the transmissions? They’re a mixed bag once miles stack up. I’ve worked on a lot of these. Not blown-up junk—this isn’t that kind of platform—but picky. Very picky. Fluid, calibration, driving style… everything matters more than people expect. Most of what goes wrong isn’t…

The 2019–present Lexus ES. On paper, it’s simple. In the shop, yeah… mostly still simple, which is rare these days. You’re dealing with three setups. That’s it. ES350 — V6, front-wheel drive, conventional 8-speed ES250 — 4-cylinder, AWD, also 8-speed but with a rear coupling system ES300h — hybrid, planetary eCVT unit I’ve worked on…

Overview This generation Lexus ES? Simple drivetrain. Almost boring. No AWD, no transfer case, no fancy torque-vectoring nonsense. Just a front-wheel-drive transaxle doing all the work. You’ve got two completely different setups hiding under the same body: ES350 — U660E conventional automatic ES300h — P314 hybrid power-split unit And these two… they don’t behave the…