A new five-speed automatic transmission was added for 2003, replacing the previous four-speed. The added ratio makes better use of the engine's torque.
The suspension provides a comfortable ride on winding back roads and bumpy highways, yet is capable of climbing any mountain, fording any stream. The rack-and-pinion steering provides sharp response. The steering system was upgraded for 2003 for improved maneuverability at low speeds and better steering feel at high speeds. It's easy to turn the steering wheel in crowded parking lots. (The tooth spacing on the steering gears becomes wider toward the end of the steering rack, reducing steering effort at large steering angles. A computer-controlled actuator in the steering shaft above the rack increases boost at very large steering angles, such as those used in a parking lot.) Yet the steering does not isolate the driver at speed on the open road.
The LX 470 comes with an Adaptive Variable Suspension (AVS), which allows the driver to adjust the damping between soft or firm settings. It's controlled electronically using feedback from various road sensors; the system constantly adjusts the semi-active shocks among 16 settings according to conditions. It's a sophisticated system and it works extremely well. The LX 470 rides smoothly over unpaved roads, but inspires driver confidence with taut response on winding country roads.
Like the Range Rover, the LX 470 features adjustable ride height. Press a button and the hydropneumatic system raises and lowers the vehicle nearly 4 inches. This allows the driver to increase ground clearance for climbing over obstacles or lower ride height for highway cruising. It also makes climbing in and out of the vehicle easier when all dressed up for a night on the town.
The LX 470 uses a true full-time four-wheel-drive system with a center differential that splits the power 50/50 front/rear. The system is always engaged and requires no intervention by the driver. Throw in a locking center differential, a rear limited-slip differential and lots of suspension articulation and only the driver, or worn out tires, can be blamed for sticking one of these in the mud. The system is adept at handling the rigors of slippery winter weather or deep mud or snow. The driver can shift into low range for driving on steep off-road inclines.
Big 18x8-inch wheels come standard and are fitted with 275/60R18 mud-and-snow tires.
The anti-lock brake system operates even in low range and is designed to offer better performance off road than traditional ABS by avoiding early activation on slippery slopes. ABS intervention decreases as road surface roughness increases or the grade steepens. That's a good feature because traditional ABS can lengthen braking distances considerably on unpaved roads. Big disc brakes offer good response and seem to stop this 5,400-pound vehicle in a surprisingly short distance. Electronic Brake Distribution was added for 2003 to better distribute brake forces between the front and rear wheels under hard braking. EBD improves control and can reduce braking distances.
Three active safety technologies are tied in with the ABS to enhance driver control: Vehicle Skid Control (VSC) helps maintain traction under demanding conditions by detecting and correcting wheel slip. When it detects a loss of traction, the system applies the brakes to individual wheels to help the driver maintain control. The system also integrates a Brake Assist function that interprets a quick, hard push of the brake pedal as emergency braking and supplements the applied braking pressure.
The traction control system further reduces the chance of losing grip by using brake and throttle intervention to control wheelspin. The system (TRAC) provides some of the traction benefits of locked center and rear differentials while maintaining the easy steering response associated with open differentials. Next Page