2009 Hyundai Elantra Owner's Manual - Page 243

What to do in an emergency EMERGENCY STARTING Jumper Cables CAUTION Use only a 12-volt jumper system. You can damage a 12-volt starting motor, ignition system, and other electrical parts beyond repair by use of a 24-volt power supply (either two 12-volt batteries in series or a 24-volt motor generator set). (-) (-) (+) Booster battery (+) Discharged battery 1VQA4001 WARNING - Battery Never attempt to check the electrolyte level of the battery as this may cause the battery to rupture or explode causing serious injury. Jump starting Jump starting can be dangerous if done incorrectly. Therefore, to avoid harm to yourself or damage to your vehicle or battery, follow the jump starting procedures. If in doubt, we strongly recommend that you have a competent technician or towing service jump start your vehicle. WARNING - Battery • Keep all flames or sparks away from the battery. The battery produces hydrogen gas which may explode if exposed to flame or sparks. • Do not attempt to jump start the vehicle if the discharged battery is frozen or if the electrolyte level is low; the battery may rupture or explode. Jump starting procedure 1. Make sure the booster battery is 12volt and that its negative terminal is grounded. 2. If the booster battery is in another vehicle, do not allow the vehicles to touch. 3. Turn off all unnecessary electrical loads. 4. Connect the jumper cables in the exact sequence shown in the illustration. First connect one end of a jumper cable to the positive terminal of the discharged battery (1), then connect the other end to the positive terminal on the booster battery (2). Proceed to connect one end of the other jumper cable to the negative terminal of the booster battery (3), then the other end to a solid, stationary, metallic point (for example, the engine lifting bracket) away from the battery (4). Do not connect it to or near any part that moves when the engine is cranked. Do not allow the jumper cables to contact anything except the correct battery terminals or the correct ground. Do not lean over the battery when making connections. 6 4