See also:

Engine immobilizer system
The vehicle's keys have built-in transponder chips that prevent the engine from starting if the key has not been previously registered in the vehicle's on-board computer. Never leave the keys insid ...

Driving It
Driving Impressions Comfortable, controllable and quick with either powertrain or drivetrain combination, the 2011 Lexus GS is an excellent all-around performer that should please all but the mo ...

Fuel information
Your vehicle must use only unleaded gasoline. Premium unleaded gasoline with an octane rating of 91 (Research Octane Number 96) or higher required for optimum engine performance. If 91 octane canno ...