How do you jump start 1999 Lexus rx300?

To jump-start a 1999 Lexus RX300, first ensure both vehicles are turned off. Connect the red jumper cable to the positive terminal of the dead battery, then attach the other end to the positive terminal of the working battery. Next, connect the black jumper cable to the negative terminal of the working battery and attach the other end to a grounded metal surface on the dead vehicle, such as an engine mount. Start the working vehicle, let it run for a few minutes, then try starting the RX300.