2010 Cadillac CTS Owner's Manual - Page 334

9-34 Vehicle Care 6. Replace the blade with a new one. Headlamp Aiming The vehicle has a visual optical headlamp aiming system. The 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 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. . Be placed so it is perpendicular to the wall. Not have any snow, ice, or mud on it. Be fully assembled and all other work stopped while headlamp aiming is being performed. Normally loaded with a full tank of fuel and one person or 75 kg (160 lbs) sitting on the driver seat. Have all tires properly inflated. If your vehicle has a spare tire, ensure the spare tire is in its original location in the vehicle. . . . . . 7. Reinstall the wiper blade assembly by sliding it over the wiper arm to engage the J-hooked end. Pull up on the assembly to lock it into place. 8. Repeat the steps for the other wiper. 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 7.6 m (25 ft) from a light colored wall. Have all four tires on a level surface which is level all the way 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. .