Engine System
The 2.4L Turbo Hybrid MAX system is built for Toyota models that need stronger acceleration, Full-Time Electronic AWD, and more power than Toyota's efficiency-focused hybrid systems. It uses a turbocharged 2.4L gas engine, electric motor assistance, a Toyota hybrid battery system, and a Direct Shift-6AT 6-speed automatic transmission.
| Specification | Detail |
|---|---|
| Powertrain | 2.4L Turbo Hybrid MAX |
| Gas engine | 2.4L turbocharged 4-cylinder |
| Valve configuration | 16-valve with VVT-i |
| Fuel system | D-4S injection |
| Hybrid battery | Toyota hybrid battery system |
| Transmission | Direct Shift-6AT 6-speed electronically controlled automatic transmission |
| Drivetrain | Standard Full-Time Electronic AWD with rear eAxle |
| Crown Platinum output | 340 net combined hp and 400 lb-ft |
| Grand Highlander Hybrid MAX output | 362 hp and 400 lb-ft |
| Crown Platinum fuel economy | 29/32/30 mpg city/highway/combined |
| Grand Highlander Hybrid MAX fuel economy | Manufacturer-estimated 27 mpg combined |
| Grand Highlander Hybrid MAX towing | Up to 5,000 lbs |
How the System Works
Hybrid MAX combines a turbocharged gas engine with electric motor assistance. The front electric motor works with the gas engine through the 6-speed automatic transmission, while the rear eAxle helps deliver power to the rear wheels.
In Hybrid MAX models, Toyota uses Full-Time Electronic AWD with a rear eAxle to help deliver rear-wheel power without a conventional mechanical driveshaft. The system can adjust power delivery based on driving conditions, traction needs, and driver input.
The 6-speed Direct Shift automatic transmission is one of the main differences between Hybrid MAX and many Toyota hybrids. Instead of using an ECVT, Hybrid MAX uses a conventional automatic transmission with fixed gear changes. That gives the Crown Platinum and Grand Highlander Hybrid MAX a more direct driving feel.
The Crown Platinum and Grand Highlander Hybrid MAX use different output tuning. Crown Platinum produces 340 net combined hp and 400 lb-ft of torque, while Grand Highlander Hybrid MAX produces 362 hp and 400 lb-ft of torque. The Crown uses Hybrid MAX for sedan response and standard AWD, while the Grand Highlander uses it for 3-row SUV strength, towing, and passenger-carrying capability.