In both systems, the Torsen differential distributes 60 percent of available power to the rear wheels under most conditions and changes the ratio as needed based on steering input and wheel slip. Automatically shifting to a 29:71 power distribution ratio during steering maneuvers helps to enhance vehicle tracking through curves. The center differential can change the ratio to 53:47 to help control rear wheel slippage. The Torsen differential makes the 4Runner less prone to slippage caused by sudden changes in road conditions.

Downhill Assist Control (DAC) is designed to augment the low-speed descending ability of low-range by holding the vehicle to a target speed with no intervention from the driver. Hill-start Assist Control (HAC), standard on all models, provides additional control for off-road driving by helping to keep the vehicle stationary while starting on a steep incline or slippery surface.


Rugged Chassis, Smooth Ride

Toyota 4Runner's rugged body-on-frame construction utilizes full-length boxed section frame rails that use large diameter body mounts for high torsional rigidity and excellent cabin noise isolation. On V8 models, a standard tow hitch receiver bolts directly to the rear frame crossmember. A draw bar, a high-capacity seven-pin electrical connector for trailer wiring, and pre-wiring for an electric trailer brake controller are also included as standard equipment.

Suspension is by double wishbones in the front and a four-link rigid type suspension in the rear, both systems with coil springs over gas shock absorbers. Toyota 4Runner Limited V8 4WD model can be equipped with rear auto-leveling air suspension for improved ride and performance when towing or carrying heavy loads. This option is teamed with the unique X-REAS Sport Enhancement Suspension that is also standard on the 4Runner Sport Edition.

The X-REAS Sport Enhancement Suspension diagonally links the compression chambers of the shock absorbers (front left shock linked to rear right and front right linked to rear left) by a center control absorber. The system helps improve on-road handling and dampens body roll and pitch by passing small body motions from front-to-rear to increase overall vertical shock damping.

Towing capacity is 5,000 lbs. for V6 models, 7,000 lbs. for V8 4WD models and 7,300 lbs. for V8 2WD models. All 4Runner models are equipped with skid plates for the engine and fuel tank, and 4WD models add one for the transfer case, as well.


Sophisticated Dynamic Control with STAR SAFETY SYSTEM
 
The STAR SAFETY SYSTEM includes VSC, TRAC, ABS with EBD and Brake Assist to help provide optimal vehicle control and driving safety. Four-channel, four-sensor ABS helps to preserve steering control by preventing the wheels from locking during severe braking situations, while EBD distributes proper brake force between the front and rear wheels according to driving conditions. Brake Assist is designed to determine if the driver is attempting emergency braking and, if the driver has not stepped firmly enough on the brake pedal to engage the (ABS), the system supplements the applied braking power.

The Vehicle Stability Control (VSC) system helps keep the 4Runner going on the driver's intended course by detecting front-wheel slide and rear-wheel slide during cornering and attempting to control either condition with torque intervention and/or by braking individual wheels. The traction control (TRAC) feature helps reduce tire slippage during acceleration. 4Runner 4WD models use an additional yaw sensor, a deceleration sensor, and control algorithms to deliver smoother torque on any surface, including low-range and locked center differential conditions.

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