2011 Jeep Compass Owner Manual - Page 390

388 WHAT TO DO IN EMERGENCIES 4. Connect the opposite end of the negative (-) jumper Once the engine is started, remove the jumper cables in cable to a good engine ground (exposed metal part of the the reverse sequence: discharged vehicle's engine) away from the battery and 6. Disconnect the negative (-) jumper cable from the the fuel injection system. engine ground of the vehicle with the discharged battery. WARNING! Do not connect the cable to the negative post (-) of the discharged battery. The resulting electrical spark could cause the battery to explode and could result in personal injury. 5. Start the engine in the vehicle that has the booster battery, let the engine idle a few minutes, and then start the engine in the vehicle with the discharged battery. 7. Disconnect the negative end (-) of the jumper cable from the negative (-) post of the booster battery. 8. Disconnect the opposite end of the positive (+) jumper cable from the positive (+) post of the booster battery. 9. Disconnect the positive (+) end of the jumper cable from the positive (+) post of the discharged vehicle. 10. Reinstall the air intake duct. If frequent jump-starting is required to start your vehicle you should have the battery and charging system inspected at your authorized dealer.