Underglow in Utah
Underglow is legal in Utah, including while driving, subject to color and flashing limits: No red or blue visible from directly in front, no flashing or rotating, and rear-facing light must show red.
Verified against primary sources · August 2026
What the law says
Utah does not ban underglow — it restricts colors and behavior. No red or blue visible from directly in front, no flashing or rotating, and rear-facing light must show red.
Specific Limits
- Restrictions
- No red or blue visible from directly in front, no flashing or rotating, and rear-facing light must show red.
- While driving
- allowed
Exceptions & Exemptions
Underglow lights must not be red or blue, cannot flash or rotate, and must not be visible from the front or rear of the vehicle. Only white and amber lights are permitted on the front, red and amber on the rear.
Frequently Asked Questions
Are underglow legal in Utah?
What are the exact underglow limits in Utah?
Are there exceptions for underglow in Utah?
Street-legal underglow picks
Gear that helps you mod without a ticket in Utah.
The glow that's legal in every state — inside the cabin instead of under it.
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