2009 Lexus IS F Owners Manual - Page 293

4-3. Do-it-yourself maintenance n Before recharging When recharging, the battery produces hydrogen gas which is flammable and explosive. Therefore, before recharging: l If recharging with the battery installed on the vehicle, be sure to disconnect the ground cable. l Make sure the power switch on the charger is off when connecting and discon- necting the charger cables to the battery. n After recharging/reconnecting the battery In some cases, the engine may not start. Follow the procedure bellow to initialize the system. STEP 1 Shift the shift lever to "P", and turn the "ENGINE START STOP" switch OFF. STEP 2 Open and close any of the doors. STEP 3 Start the engine. (If the engine does not start first time, repeat the proce- dure.) If the engine will not start even after multiple attempts at the above method, contact your Lexus dealer. 4 Maintenance and care CAUTION n Chemicals in the battery A battery contains poisonous and corrosive sulfuric acid and may produce hydrogen gas which is flammable and explosive. To reduce the risk of death or serious injury, take the following precautions while working on or near battery: l Do not cause sparks by touching the battery terminals with tools. l Do not smoke or light a match near the battery. l Avoid contact with eyes, skin and clothes. l Never inhale or swallow electrolyte. l Wear protective safety glasses when working near the battery. l Keep children away from the battery. 297