NJSBYL Civic LED Side Marker Lights - 2016-2021 Sedan/Coupe/Hatchback Smoked Lens, White Running & Amber Switchback

These direct-replacement side marker assemblies are designed for the 10th‑generation Honda Civic (2016–2021) and swap into the factory bumper socket without cutting or splicing. With a smoked lens finish, integrated white LEDs for position/running/parking lights and amber switchback LEDs for turn signaling, they modernize the front corners of your Civic while matching OEM fitment and legal standards.

How do these lights improve visibility and appearance?

The NJSBYL side markers deliver stronger, whiter illumination for position and running lights and a clear amber signal when indicating turns. The contrast between smoked lens styling and bright LEDs sharpens the front-end look and provides better conspicuity in day and night driving conditions.

• White LED array for position/running/parking lights
• Amber switchback LEDs for turn signals
• Smoked lens for a contemporary, low-profile aesthetic
• Brighter output than original halogen side markers

Will these fit my 2016–2021 Honda Civic and install easily?

Yes — these assemblies are built as plug-and-play replacements for 10th‑gen Civic coupe, sedan, and hatchback models. They use the T10 connector that mates to the factory side marker socket and include a simple ACC+ red wire to control amber turn operation.

• Direct replacement for OEM part numbers like H02551127N and equivalents
• No cutting or soldering required; uses factory sockets
• Includes wiring for switchback/ACC+ control
• Compatible across 2‑door and 4‑door Civic variants

Are these lights street-legal and durable?

The NJSBYL side markers are DOT/SAE approved for North American use, meeting regulatory visibility standards. They are assembled with LED modules and a smoked lens designed to resist weather exposure, offering long-lasting performance compared with halogen bulbs.

• DOT/SAE approval for legal on-road use in North America
• LED design reduces heat and extends service life
• Sealed lens to protect against moisture and debris
• Smoked finish resists yellowing and fading over time

How do I wire and operate the switchback function?

The units operate as white side marker lights by default and switch to amber when the turn signal circuit is activated. The included red ACC+ lead allows you to control the amber mode reliably; installation follows standard Honda side marker wiring practice.

• Default white running/position light mode
• Amber output activates with turn signal or ACC+ control
• T10 plug fits factory socket; red wire to ACC+ for switchback control
• Wiring instructions follow OEM connector layout for easy hookup

Who is this for? Drivers who own a 2016–2021 Honda Civic and want a reliable, plug-and-play upgrade that modernizes their car’s front appearance while improving signal and position light brightness will benefit from the NJSBYL Civic LED side marker lights. They’re ideal for enthusiasts wanting a subtle smoked look with legally compliant amber signaling, DIY installers seeking simple fitment, and anyone replacing worn or dim halogen side markers with longer-lasting LEDs.