2002 Subaru Impreza Owner's Manual - Page 294

In case of emergency (1) Connect one jumper cable to the positive (+) terminal on the discharged battery. (2) Connect the other end of the jumper cable to the positive (+) terminal of the booster battery. (3) Connect one end of the other cable to the negative (-) terminal of the booster battery. (4) Connect the other end of the cable to the engine lifting bracket. Make sure that the cables are not near any moving parts and that the cable clamps are not in contact with any other metal. 5. Start the engine of the vehicle with the booster battery and run it at moderate speed. Then start the engine of the vehicle that has the discharged battery. 6. When finished, carefully disconnect the cables in exactly the reverse order. Engine overheating WARNING Never attempt to remove the radiator cap until the engine has been shut off and has fully cooled down. When the engine is hot, the coolant is under pressure. Removing the cap while the engine is still hot could release a spray of boiling hot coolant, which could burn you very seriously. If the engine overheats, safely pull off the road and stop the vehicle in a safe place. J If steam is coming from the engine compartment Turn the engine off and get everyone away from the vehicle until it cools down. J If no steam is coming from the engine compartment 1. Keep the engine running at idling speed. 2. Open the hood to ventilate the engine compartment. 9-14