Subaru BRZ Manuals 2013 BRZ Owner's Manual | Page 304

4-3. Do-it-yourself maintenance I Before recharging When recharging, the battery produces hydrogen gas which is flammable and explosive. Therefore, before recharging: G If recharging with the battery installed on the vehicle, be sure to disconnect the ground cable. G Make sure the power switch on the charger is off when connecting and disconnecting the charger cables to the battery. I After recharging/reconnecting the battery (vehicles with a keyless access with push button start system) G Unlocking the doors using the keyless access with push button start system may not be possible immediately after reconnecting the battery. If this happens, use the remote keyless entry system or the mechanical key to lock/unlock the doors. G Start the engine with the push-button ignition switch in “ACC” mode. The engine may not start with the push-button ignition switch turned off. However, the engine will operate normally from the second attempt. G The push-button ignition switch mode is recorded by the vehicle. If the battery is reconnected, the vehicle will return the push-button ignition switch mode to the status it was in before the battery was disconnected. Make sure to turn off the engine before disconnect the battery. Take extra care when connecting the battery if the push-button ignition switch mode prior to discharge is unknown. If the engine will not start even after multiple attempts, contact your SUBARU dealer. 302