2008 Pontiac G8 Owner's Manual - Page 211

Vehicle Service and Care 9-27 Headlamp Aiming The optical headlamp aiming system has been preset at the factory and should need no further adjustment. However, if the vehicle is damaged adjustment may be necessary. If oncoming vehicles flash their high beams at you, this may also mean the vertical aim needs to be adjusted. It is recommended that the vehicle is taken to your dealer/retailer for service if the headlamps need to be re-aimed. It is possible however, to re-aim the headlamps as described. The vehicle should: • Be placed so it is at a right angle to the wall. To adjust the vertical aim on the headlamps: 1. Open the hood. Hood Release on page 9-5. • Not have any snow, ice, or mud on it. • Be fully assembled and all other work stopped while headlamp aiming is being done. • Have a full tank of fuel and one person or 160 lbs (75 kg) on the driver seat. • Have all tires properly inflated. Headlamp aiming is done with the vehicle's low-beam headlamps. The high-beam headlamps will be correctly aimed if the low-beam headlamps are aimed properly. 2. Locate the aim dot on the lens of the low-beam headlamp. 3. Record the distance from the ground to the aim dot on the low-beam headlamp. • Be placed so the headlamps are 25 ft. (7.6 m) from a light colored wall. • Have all four tires on a perfectly level surface which is level all the way to the wall.