1999 Lexus LX 470 User Guide 1 - Page 84

EXTERIOR EQUIPMENT CAUTION D Make sure the cap is tightened securely to prevent fuel spillage in case of an accident. D Use only a genuine Lexus fuel tank cap for replacement. It has a built-in check valve to reduce fuel tank vacuum. If the fuel pump shut-off system has activated, you can turn on the fuel pump shut-off system with the reset switch on the impact detection sensor. To turn on the fuel pump and reset the shut-off switch, push the reset switch for longer than 1 second with the vehicle parked on a level surface. CAUTION D Inspect the ground under the vehicle before resetting the fuel pump shut-off system. If you find liquid leakage on the ground, it is probable that the fuel system has been damaged and is in need of repair. In this case, do not reset the fuel pump shut-off system. D Do not strike or kick the impact detection sensor. The fuel pump shut-off system may activate, shutting off the motor and placing the vehicle in a position to be involved in an unexpected accident. The fuel pump shut-off system is designed to activate in a collision which may cause a large amount of vehicle deformation. It does not operate in a small impact. FUEL PUMP SHUT-OFF SYSTEM In response to a severe impact which may cause a large amount of vehicle deformation, the fuel pump shut-off system stops supplying fuel to the engine to minimize the risk of fuel leakage. 15X011b The fuel pump shut-off system activates when the impact detection sensor located in the footwell of the driver's seat detects an impact larger than specified. 68