Cadillac 2010 CTS Owner's Manual

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9-106 Vehicle CareDo not connect positive (+) tonegative (−) or you will get ashort that would damage thebattery and maybe other partstoo. And do not connect thenegative (−) cable to thenegative (−) terminal on the deadbattery because this can causesparks.6. Connect the red positive (+)cable to the positive (+) terminalof the dead battery. Use aremote positive (+) terminal if thevehicle has one.7. Do not let the other end touchmetal. Connect it to thepositive (+) terminal of thegood battery. Use a remotepositive (+) terminal if the vehiclehas one.8. Now connect the blacknegative (−) cable to thenegative terminal of the goodbattery. Use a remotenegative (−) terminal if thevehicle has one.Do not let the other end touchanything until the next step. Theother end of the negative (−)cable does not go to the deadbattery. It goes to a heavy,unpainted metal engine part orto a remote negative (−) terminalon the vehicle with the deadbattery.9. Connect the other end of thenegative (−) cable at least18 inches (45 cm) away from thedead battery, but not nearengine parts that move. Theelectrical connection is just asgood there, and the chance ofsparks getting back to thebattery is much less.Use a remote negative (−)terminal if the vehicle has one.Your vehicle's remotenegative (−) ground location isfor this purpose.10. Now start the vehicle with thegood battery and run theengine for a while.11. Try to start the vehicle that hadthe dead battery. If it will notstart after a few tries, itprobably needs service.