2012 Chevrolet Impala Owner's Manual - Page 254

10-24 Vehicle Care Headlamp Aiming Headlamp aim has been preset at the factory and should need no further adjustment. However, if the 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). If the headlamps need to be re-aimed, it is recommended that the vehicle be taken to the dealer for service. Bulb Replacement For the proper type of replacement bulbs, see Replacement Bulbs on page 10‑28. For any bulb‐changing procedure not listed in this section, contact your dealer. Headlamps, Front Turn Signal, Sidemarker, and Parking Lamps Halogen Bulbs { WARNING 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. A. Sidemarker B. Low-Beam Headlamp C. High-Beam Headlamp D. Parking/Turn Signal Lamp