Hybrids are widespread across Toyota and Lexus’ vehicle lineups, and that could soon extend to the GX.
Toyota has been on a tear in recent years, insofar as virtually every one of its models across its mainstream offerings as well as the Lexus brand is now available with a hybrid powertrain. There are still a few notable exceptions, and one that stands out on the Lexus side is the GX 550 SUV. From launch, it’s only been available with a twin-turbocharged V6 gas engine, unlike its Toyota counterpart, the Land Cruiser 250 Series. That could soon change, though, as the automaker filed for the aptly named “GX550h” trademark, obviously nodding to a prospective GX Hybrid.
Frankly? While it may not be the most earth-shatteringly surprising news in the world, it is something the GX lineup needs. As gas prices continue to spike well above $4 per gallon on average in the U.S., too, a potential Lexus GX550h is coming not a moment too soon. The folks over at CarBuzz originally noticed the filing with the U.S. Patent and Trademark Office (USPTO), filed on March 16, 2026.
There is a little bit of weirdness with this trademark, as both the nonhybrid and hybrid variants of the new Lexus GX would have the same name. Barring the “h” at the end, which Lexus has used to separate its hybrids from the early days, it has not taken a similar approach with its recent offerings. The larger LX SUV, for example, gets the 600 designation for its gas-only version (using the same 3.4-liter twin-turbo V6 as the GX550). For the hybrid LX, we get 700h instead.
Nomenclature aside for a moment, the news here is that a hybrid GX is almost certainly coming. Lexus itself will not comment on future product, of course, but it tracks with everything else the company is doing. And again, if there’s ever a moment to launch a more efficient hybrid model, it’s right now. The standard Lexus GX550 is already a solid and premium luxury SUV, but there’s always been a downside: the fuel economy sucks (just 17 mpg combined).
There are a couple different routes Lexus could go as far as which hybrid powertrain a potential GX550h could use, too. The most straightforward approach, similar to the LX700h or Toyota Sequoia, would be to just go with the electrified version of the same twin-turbo V6 powertrain. The standard GX550 manages 349 horsepower and 479 lb-ft of torque, and sticking with the 3.4L-backed hybrid could bump that up to as much as 437 horsepower and 583 lb-ft. Not only is that a massive power improvement, but with the GX’s smaller stature against its full-sized siblings, we could see a couple more mpg out of it, too.
The alternative would be for the GX Hybrid to adopt the Land Cruiser’s powertrain. That would bring in a 2.4-liter gas engine, coupled to a hybrid system for a total of 326 horsepower and 465 lb-ft of torque. Sure, it’s not as powerful as the V6, but it’s still at least a torque bump over the GX550. It could also get even better fuel economy than a V6 hybrid, not to mention Lexus may have to go this route with the GX for packaging reasons (if not to maintain an incentive to upgrade to the hybrid LX, too). Effectively, going this route would give people a fancier upgrade over the Land Cruiser without sacrificing fuel economy in the process.
Either way, both hybrid powertrains are readily available, since they’re already entrenched in Toyota/Lexus’ latest SUV and truck lineups. We’ll have to wait and see what happens. While I’d normally hedge and say a trademark isn’t a guaranteed sign of what’s to come, I’ll make an exception here and say a GX Hybrid is a foregone conclusion. It was always going to happen, though the automaker may be even more motivated to get this model into showrooms ASAP.
