Underglow in Tennessee
Underglow is legal in Tennessee, including while driving, subject to color and flashing limits: No red or blue visible from the front and no flashing toward the front.
Verified against primary sources · August 2026
What the law says
Tennessee does not ban underglow — it restricts colors and behavior. No red or blue visible from the front and no flashing toward the front.
Specific Limits
- Restrictions
- No red or blue visible from the front and no flashing toward the front.
- While driving
- allowed
Exceptions & Exemptions
Underglow lights are generally prohibited while driving on public roads. Red lights visible from the front are prohibited. Flashing or oscillating lights are not permitted except for emergency vehicles.
Frequently Asked Questions
Are underglow legal in Tennessee?
What are the exact underglow limits in Tennessee?
Are there exceptions for underglow in Tennessee?
Street-legal underglow picks
Gear that helps you mod without a ticket in Tennessee.
The glow that's legal in every state — inside the cabin instead of under it.
Shop on AmazonCheck your state's color and flashing rules before running these on public roads.
Shop on AmazonAs an Amazon Associate, Is My Mod Legal earns from qualifying purchases made through these links, at no extra cost to you. We only recommend gear that helps you stay street-legal.