IS MY MOD LEGAL?

Light Bars & LED Lighting in Illinois

Vehicle type: Truck

Conditional

Illinois prohibits driving with any lighting that has a smoked or tinted lens or cover — so covering a light bar is itself a violation here. Up to three auxiliary driving lamps (white, HID white, or yellow-amber, mounted 12 to 42 inches) plus one spot lamp aimed no more than 100 feet are permitted.

Verified against primary sources · August 2026

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Frequently Asked Questions

Are light bars & led lighting legal in Illinois?
Illinois prohibits driving with any lighting that has a smoked or tinted lens or cover — so covering a light bar is itself a violation here. Up to three auxiliary driving lamps (white, HID white, or yellow-amber, mounted 12 to 42 inches) plus one spot lamp aimed no more than 100 feet are permitted.
What are the light bars & led lighting limits in Illinois?
Illinois prohibits driving with any lighting that has a smoked or tinted lens or cover — so covering a light bar is itself a violation here. Up to three auxiliary driving lamps (white, HID white, or yellow-amber, mounted 12 to 42 inches) plus one spot lamp aimed no more than 100 feet are permitted. For specific numeric limits and thresholds, see our full compliance report.
Are there exceptions for light bars & led lighting in Illinois?
Yes, there may be exceptions and exemptions. Get the full details including medical exemptions and edge cases in our compliance report.

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