2002 Chevrolet Impala Owner's Manual - Page 324
2002 Chevrolet Impala Manual
Page 324 highlights
Bulb Replacement For the proper type of replacement bulb, see "Replacement Bulbs" in the Index. For any bulb changing procedure not listed in this section, contact your dealer. Headlamps Headlamp Aiming If your vehicle is damaged in an accident, the headlamp aim may be affected. Aim adjustment to the low beam may be necessary if it is difficult to see lane markers (for horizontal aim), or if oncoming drivers flash their high beams at you (for vertical aim). If you believe your headlamps need to be re-aimed, we recommend that you take your vehicle to the dealer for service. However, it is possible for you to re-aim your headlamps by following the procedure in the service manual for your vehicle. Halogen Bulbs 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. NOTICE: To make sure your headlamps are aimed properly, read all the instructions before beginning. Failure to follow these instructions could cause damage to headlamp parts. 6-35
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