2009 Chevrolet Cobalt Owner's Manual - Page 302

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, the headlamp aim may be affected and 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 the headlamps are 25 ft. (7.6 m) from a light colored wall. • On a perfectly level surface which is level all the way to the wall. • Placed so it is at a right angle to the wall. 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. To adjust the vertical aim on the headlamps: 1. Open the hood. See Hood Release on page 5-11. 2. Record the distance from the ground to the aim dot on the low-beam headlamp. • Clear of any snow, ice, or mud on it. • Fully assembled, with the tires properly inflated, and • all other work stopped while headlamp aiming is being done. Normally loaded with a full tank of fuel, with the spare tire in the proper location, and one person or 160 lbs (75 kg) on the driver seat. 5-44