What does Prado H4F mean?
3 Answers
Prado H4F is a default four-wheel drive mode used for daily urban road driving. As the name suggests, it means all four wheels have driving force, and each wheel can rotate at different speeds. The Toyota Prado is a full-size SUV known for its excellent off-road performance and comfortable driving style. The dimensions of the Toyota Prado are 4970mm in length, 1875mm in width, and 1905mm in height, with a wheelbase of 2790mm. In terms of exterior design, the Prado adopts Toyota's family-style design philosophy. The front fascia features a large grille, with the headlight clusters connected to the grille. The headlight clusters use a flat design similar to the current Land Cruiser, giving the vehicle a more sharp and domineering overall appearance.
Bro, I've driven the Prado for over a decade. This H4F thing is actually the high-speed four-wheel drive mode on the Prado's 4WD system. See that silver knob on the left side of the steering wheel? Turn it right to the H4F position, and all four wheels get power, which is perfect for paved roads with a bit of slippery conditions. For example, on rainy highways or icy national roads, engaging H4F noticeably improves traction stability, and the steering won't fight you like it does in locked 4WD mode. Remember to shift when the speed is below 10 km/h, preferably at a complete stop, otherwise, the transfer case gears will grind painfully. If you encounter muddy roads or steep slopes, you'll need to switch to the locked low-range four-wheel drive.
Last time when inspecting an old Land Cruiser for a client, I specifically researched this H4F designation. It represents a combination of High 4 (high-speed four-wheel drive) and Free (free wheel hubs) mode, essentially meaning the center differential isn't fully locked. The brilliance of this design lies in balancing handling and off-road capability – it automatically adjusts rotational speed differences between front and rear axles during cornering. It's more fuel-efficient than full-time 4WD yet significantly safer than pure rear-wheel drive. During actual testing in snow with this mode engaged, the vehicle remained stable at 70 km/h on interchange ramps. However, do note the transfer case fluid needs replacement every 20,000 km – last time a 12-year-old vehicle couldn't engage gears due to sludge buildup, costing thousands in repairs.
