2009 Chevrolet Impala Owner's Manual - Page 297

To disconnect the jumper cables from both vehicles, do the following: 1. Disconnect the black negative (−) cable from the vehicle that had the dead battery. 2. Disconnect the black negative (−) cable from the vehicle with the good battery. 3. Disconnect the red positive (+) cable from the vehicle with the good battery. 4. Disconnect the red positive (+) cable from the other vehicle. 5. Return the fuse block cover to its original position. If the headlamps need to be re-aimed, it is recommended that you take the vehicle to your dealer/retailer for service. Bulb Replacement For the proper type of replacement bulbs, see Replacement Bulbs on page 5-51. For any bulb changing procedure not listed in this section, contact your dealer/retailer. Halogen Bulbs Headlamp Aiming Headlamp aim has been preset at the factory and should need no further adjustment. However, if your vehicle is damaged in a crash, the headlamp aim may be affected. Aim adjustment to the low-beam headlamps may be necessary if oncoming drivers flash their high-beam headlamps at you (for vertical aim). { CAUTION: Halogen bulbs have pressurized gas inside and can burst if you drop or scratch the bulb. You or others could be injured. Be sure to read and follow the instructions on the bulb package. 5-45