center locking differential. The Kinetic Dynamic Suspension System (KDSS) became standard. Power came from a new 4.6-liter 1UR-FE V8 engine producing and of torque, mated to a new six-speed automatic transmission. Fuel economy was improved over the prior generation, while maximum towing capacity was . The drag coefficient was reduced to . The rear wiper was hidden under the rear spoiler, and while the tailgate remained side-opening, a flip-up glass panel was added. The interior added a power-folding, two-passenger third row which folded flat, allowing capacity for up to seven passengers, with the second row sliding or tilting for third-row access. Because the third row was no longer removable and used additional space, cargo capacity declined. A toggle switch replaced the transfer case's floor-mounted shift lever, and the gauge cluster added a steering wheel angle display for off-road situations. Similar to before, a Mark Levinson sound system and two-display Rear Seat Entertainment System (RSES) were optional, while three-zone climate control, semi-aniline leather, and heated second-row seats and steering wheel were new options. Like its predecessor, Rear Adjustable Height Control (AHC) air suspension was offered on the GX 460 with an Adaptive Variable Suspension (AVS) system and Hill-start Assist Control (HAC). Additional electronic aids included the LX 570's Crawl Control system, Downhill Assist Control (DAC), and Active Traction Control (A-TRAC). The Torsen differential distributed a variable torque split when left unlocked, including a 40:60 (front: rear) ratio under normal driving conditions, a 30:70 ratio during cornering, and a 50:50 ratio when rear-wheel slippage was detected. Added safety features included whiplash-reducing active headrests and ten airbags, including front knee airbags and rear side torso airbags. New safety options include a Pre-Collision System, Driver Monitoring System, lane departure warning system, and Lexus Enform with Safety Connect telematics. Optional cameras located at the rear door, rear-view mirror, and passenger-side mirror provided views of the vehicle's sides. Low-beam HID headlamp projectors were offered with an Intelligent High Beam feature which automatically dimmed the high beams depending on traffic conditions and an Adaptive Front lighting System (AFS) that swiveled the headlamps in corners. On May 28, 2012, Lexus China announced the market launch of the GX 400, which replaces the GX 460 in China. The engine option is now changed to the 4.0-liter 1GR-FE V6 engine that outputs combined with a five-speed automatic transmission. Due to the power reduction, it takes 9.8 seconds for the GX