{"id":189138,"date":"2026-06-11T00:45:44","date_gmt":"2026-06-11T07:45:44","guid":{"rendered":"https:\/\/www.carparts.com\/blog\/?p=189138"},"modified":"2026-10-17T07:28:54","modified_gmt":"2026-10-17T14:28:54","slug":"how-to-aim-driving-lights-quickref","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/how-to-aim-driving-lights-quickref\/","title":{"rendered":"How To Aim Driving Lights"},"content":{"rendered":"\nReading Time: <\/span> 7<\/span> minutes<\/span><\/span>\n

Headlights<\/a> (Low Beam): Many low-beam headlights use a controlled beam pattern with an upper cutoff or reduced upward light to limit glare while illuminating the road ahead and, depending on the lamp design, more of the passenger-side roadside.<\/p>\n\n\n\n

Headlights (High Beam): High beams<\/a> cast a higher, longer-range beam than low beams to illuminate more of the road and surroundings ahead.<\/p>\n\n\n\n

Driving Lights<\/a>: Produce a narrow, highly focused, and intensely bright beam of light similar to a spotlight. Instead of spreading light wide, they throw a concentrated beam farther down the road to help you see long-distance obstacles at higher speeds.<\/p>\n\n\n\n

The term “driving lights” is often used loosely for other types of auxiliary lighting on modern vehicles, especially fog lights<\/a> and Daytime Running Lights<\/a> (DRLs).<\/p>\n\n\n\n

Extra lamps in the lower bumper that can operate while the low beams are active are often fog lights, but not always. DRLs, cornering lamps, and other auxiliary lamps can occupy similar locations. True auxiliary driving lamps are designed for long-range illumination and should not be used around oncoming traffic.<\/p>\n\n\n\n

In the U.S., there is no standalone federal performance standard specifically governing aftermarket auxiliary driving lamps. However, supplemental lighting must not impair federally required lighting when installed by regulated commercial entities, and state or local laws can restrict how auxiliary lamps are mounted, switched, and used on public roads.<\/p>\n\n\n\n

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Off-road vehicle equipped with multiple auxiliary driving lights | Image Source: Richard McCuistian<\/figcaption><\/figure>\n\n\n\n

Some original equipment manufacturers (OEMs) provide auxiliary driving lamps, especially on specialized performance, off-road, or rally-inspired trims, but they are less common on standard passenger vehicles. Some factory fog lamps are fixed or non-adjustable, while others can be aimed. Adjustable driving lights need to be aimed properly, using a procedure similar in principle to aiming headlights<\/a>, although the target specifications can differ.<\/p>\n\n\n\n

For a common visual-aim starting point, park your vehicle 25 feet from a flat vertical wall on level ground, measure the height from the ground to the center of each light, then run a horizontal tape line across the wall 1.5 inches lower than that measurement. Follow the lamp manufacturer’s aiming instructions if they specify a different procedure or target. Loosen the mounting and hinge bolts, point each light straight forward, and adjust until the center of the beam’s hot spot lands on the tape line. Keep both lights equidistant from the vehicle’s centerline, tighten everything down, and you’re done. The whole job takes about 20 minutes and makes the difference between lights that reach far down the road and lights that blind oncoming drivers.<\/p>\n\n\n\n

Key Takeaways<\/h2>\n\n\n\n