Lexus GX Hybrid in the pipeline?

SLEUTHING recent US trademark filings reveals Lexus may be poised to finally electrify its long-running GX off-roader.

Product naming activity relating to a GX 550h suggests the Japanese premium brand is preparing to introduce a petrol-electric version of its Toyota LandCruiser Prado-based SUV, potentially ending more than two decades of the GX (two years in Australia) remaining purely combustion-powered.

The move would bring the GX into line with the rest of the Lexus SUV portfolio, where hybrid, plug-in hybrid, or fully electric options are already available across every other model.

While Lexus Australia has yet to confirm the hybrid for local showrooms, the development signals a broader shift as the brand responds to tightening emissions regulations and intensifying competition in the large SUV segment.

The current Australian spec’ GX 550 is powered by a twin-turbocharged 3.5-litre petrol V6 producing 260kW/650Nm and paired with a 10-speed automatic transmission.

Despite its performance advantage over the related Prado, the model’s relatively high fuel consumption has left it exposed as electrified rivals gain traction and NVES provisions bite.

Two potential hybrid powertrains are understood to be under consideration…

One option is a version of the high-output twin-turbocharged 3.5-litre V6 hybrid system in the Lexus LX 700h (due here soon and the Toyota Tundra pick-up), which could deliver significantly higher performance.

More likely, however, is the adoption of the turbocharged 2.4-litre four-cylinder hybrid system used in the Lexus RX 500h F Sport Performance offering improved efficiency with outputs in the region of 240kW/630Nm.

Either approach would mark a significant step for the GX, which has historically relied on larger-capacity petrol engines, including V8 power in earlier generations.

Lexus has filed the GX 550h name across multiple markets reinforcing expectations that the hybrid variant is under active development.

The push toward electrification comes as competition intensifies, particularly from new entrants offering hybrid and plug-in hybrid alternatives in traditionally combustion-dominated segments.

Rivals such as the Denza B5 are already targeting the same off-road SUV space with electrified powertrains, while other Chinese brands are preparing similar offerings.

At the same time, Toyota and Lexus are steadily transitioning their broader line-ups, with most passenger vehicles now offered exclusively with hybrid powertrains, leaving only select off-roaders and performance models without full electrification.

For Lexus, introducing a hybrid GX would not only complete its SUV electrification strategy but also improve competitiveness in a segment increasingly defined by efficiency as well as capability.

Timing for the GX hybrid remains unclear, and the absence of an Australian trademark filing suggests initial focus may be on left-hand-drive markets.

However, with global demand shifting and regulatory pressures mounting, the GX 550h looks increasingly likely to become a reality sooner rather than later.