The full-time AWD system works with TRAC to evenly distribute power to both axles with a constant 50/50 front-to-rear power split. If slippage occurs, the viscous coupling differential directs torque to the wheels with the most traction.

Both Lexus RX 350 models come standardly equipped with the Vehicle Stability Control (VSC) system, which helps control loss of lateral traction while cornering. VSC helps keep the vehicle going on its intended course by detecting front- and rear-wheel slide during cornering, attempting to control either condition with torque intervention and, if necessary, by applying the necessary brake pressure to the individual wheels.

VSC and Brake Assist work with the standard Anti-lock Braking System (ABS). Brake Assist is designed to determine if the driver is attempting emergency braking. If the driver has not stepped firmly enough on the brake pedal to engage ABS, the system applies increased braking power until the driver releases pedal pressure.


Serene Driving, Agile Handling

Lexus' RX models have set the benchmark for smooth, quiet ride quality in their segment for nearly a decade. A rigid body structure, vibration-canceling engine mounts, sound-absorption materials, and refined aerodynamic details all contribute to maintaining that standing. The 2007 model yields further enhancement to the already exceptionally quiet ride by adding an acoustic glass windshield; supplementary sound insulation in the door panels, instrument panel, and floor mats; and recessed covers for lower front fascia intakes to reduce turbulence near A-pillars and door mirrors.

The high-strength platform, standard 17-inch wheels and tight steering control help optimize handling response in Lexus RX 350. Eighteen-inch wheels are also available.

An optional air-suspension system provides automatic leveling with four height settings to allow the driver to tailor the RX 350 to specific driving conditions or needs. In "normal" mode, the system automatically lowers the RX 350 by 0.3-inch at speeds over 62 mph for better ride quality. Selecting the "low" mode lowers the ride height by 0.6-inch to enhance handling response, while "high" mode raises ground clearance by 1.2 inches for driving over rough surfaces at speeds under 30 mph.

An "access" mode lowers Lexus RX 350 by 1.2 inches to provide easier entry, exit and loading. All RX 350 models with the air suspension system are equipped with a multimode sequential automatic transmission.


Comprehensive Safety Design

A high-strength cabin design and comprehensive Supplemental Restraint System (SRS) are designed to help provide a high level of crash energy management for all occupants. SRS includes advanced driver and front passenger airbags, a driver's knee airbag, and front-seat-mounted side airbags designed to help protect the torso, abdomen, and pelvis. The front-airbag technology takes into account several factors, such as crash severity, passenger weight, and driver-seat position. The standard side-curtain airbags employ a roll sensor and can inflate if a predetermined threshold of vehicle-roll angle is detected.

Lexus RX 350 offers options designed to help improve visibility for night driving and poor weather conditions. While rain-sensing windshield wipers and high-intensity discharge (HID) headlights are expected in this segment, Lexus further offers an Adaptive Front lighting System (AFS) for better illumination in turns and curves.

With AFS, a central controller calculates the optimum lighting direction based on input from vehicle speed and steering angle and then swivels the right and left headlights independently accordingly.

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