how to adjust the headlights on GMC Sierra T1XX (2019-Present)?

• •Headlights appear misaligned (too high, too low, or sideways)
• •Increased glare for oncoming drivers
• •Poor nighttime visibility
• •Uneven light distribution on the road
• •Headlight beams not illuminating the desired area

1. 1Park the vehicle on a level surface facing a wall or garage door about 25 feet away.
2. 2Measure the height of the headlight beams from the ground to establish a reference point.
3. 3Mark the center of the headlight beams on the wall using tape.
4. 4Observe the current beam pattern against the reference marks to identify misalignment.
5. 5Check the owner's manual for specific adjustment procedures and specifications.

After completing the repair, verify that the issue has been resolved:

• ✓Test the affected component to ensure it functions correctly
• ✓Check for any error codes or warning lights
• ✓Monitor the vehicle for a few days to ensure the issue does not recur

To prevent this issue from occurring again:

• •Follow the manufacturer's recommended maintenance schedule
• •Address warning signs early before they develop into major issues
• •Use quality parts and fluids recommended for your vehicle
• •Keep detailed records of all repairs and maintenance

• •Flathead screwdriver
• •Torx screwdriver
• •Measuring tape

• •None specific; however, consider replacing headlights if they are dim or cloudy.