Buy Lexus NX300h Tail Light Assembly

The Lexus NX300h tail light-also called a rear combination lamp, tail lamp, or brake light assembly-is the red LED unit mounted on each back corner of the hybrid crossover. It houses the running lights, brake lights, turn-signals, and rear reflectors inside Lexus's trademark "L-shaped" lens, giving drivers behind you a clear, bright signal day or night. (Lexus USA Newsroom, Car and Driver) The lamp meets Federal Motor Vehicle Safety Standard 108 (FMVSS 108) for brightness, color, and placement on passenger vehicles. (eCFR)

This tail-light style fits every North-American-spec NX300h from model-years 2015 through 2021; styling tweaks in 2018 made the lamp slightly thinner but mounting points and wiring stayed the same. (Car and Driver, Car and Driver) Always match your build year before ordering so the contours align with the lift-gate and fender lines.

• Full-LED lighting-LEDs illuminate quicker than old bulbs, cutting brake-reaction time by up to 0.2 seconds in lab tests, a distance of one car-length at highway speed. (Crash Stats, SAE International)
• Low energy draw-LEDs sip milliamps, easing load on the NX300h's hybrid battery.
• Seamless "L" signature-Continuous light pipes reinforce Lexus brand design. (Lexus USA Newsroom)
• Integrated reflectors-Built-in red reflectors help when the car is parked with the lights off.

U.S. law says tail lamps must sit 15-72 inches above the road and flash 60-120 times per minute when signaling. (FMCA Filings) FMVSS 108 also governs lens color (red to rear) and light intensity so following drivers can judge braking force. (eCFR) Because LEDs light 200 milliseconds faster than incandescent bulbs, studies by the Society of Automotive Engineers show measurable crash-reduction potential. (SAE International, SAE International)

NX300h lamp lenses are molded from polycarbonate plastic-a clear, impact-resistant material that resists shattering yet weighs far less than glass. (Wikipedia) Inside, sealed circuit boards hold surface-mount LEDs and current-limiting resistors. A gasket at the body flange blocks water.

• Road impact damage-A fender-bender can crack the lens; because LEDs are sealed, the whole unit must be replaced.
• Moisture condensation-Owners sometimes see droplets inside the lens after heavy rain; checking the rubber seal and adding silicone grease usually fixes it. (Lexus Owners Club, Club Lexus)
• Fuse blows-The BKUP LP 5 A fuse (#5) in the passenger-compartment panel protects the backup-lamp circuit; a shorted wire will darken the tail lights until the fuse is replaced. (StartMyCar)
• Wiring faults-On the NX harness, gray often feeds the brake wire, green the turn-signal, and black is ground. (Lexus Owners Club)

Keep the lens clean with mild soap, never abrasive polish; haze reduces light output. (Prestige Lexus) Remove road salt quickly to prevent gasket swelling. Check lamp operation monthly-hybrid dash silence can mask a failed turn-signal.

1. Open the lift-gate and pop the small trim clip covering the lamp screws.
2. Remove two 10 mm bolts, then pull the lamp straight back-tabs hold it tight.
3. Unclip the wiring connector; reverse steps to install the new assembly. (CarCareKiosk)
   Plan 15 minutes per side; no special tools required.

Owners who want extra flair add sequential turn modules or smoke-tinted lens overlays (legal limits vary; check local code). Always confirm aftermarket parts keep red output and brightness equal to the factory lamp to stay FMVSS-compliant. (eCFR)

LEDs last 50,000+ hours, cutting waste compared with halogen bulbs, yet polycarbonate can leach BPA at end-of-life, so recycle lamps under e-waste rules when possible. (Wikipedia)

Q: What bulbs are inside the NX300h tail light?
A: None-every function is handled by built-in LEDs that are not user-replaceable. (Lexus USA Newsroom)

Q: Why do my tail lights fog up after a car wash?
A: A pinched gasket lets moist air in; drying the lamp with low-heat and resealing the gasket usually cures it. (Lexus Owners Club)

Q: Can I swap the 2018-2021 lamp onto my 2015 model?
A: Yes, the mounting studs and connectors are identical, so it bolts on and plugs in. (Car and Driver)

Q: Are aftermarket smoke lenses legal?
A: Only if they still pass FMVSS 108 brightness; check state inspection rules before tinting. (eCFR)

Q: How fast do LEDs light up compared with old bulbs?
A: Lab tests show up to 0.2 seconds faster, giving drivers behind you about 17 feet more stopping distance at 60 mph. (Crash Stats, SAE International)

Q: Which fuse protects the tail lamps?
A: The 5-amp "BKUP LP" fuse in the passenger-compartment box. (StartMyCar)

Q: What wire powers the brake light?
A: On many NX300h harnesses, gray is brake, green is turn, black is ground-verify with a meter before tapping wires. (Lexus Owners Club)

Q: Do I need a scan tool after replacing the lamp?
A: No. The tail light is a passive part; just clear any bulb-out warning in the cluster by cycling the ignition.

Q: Are these lamps plug-and-play on other Lexus models?
A: They fit only the NX family; lens shape differs on RX, UX, and ES cars.

Q: How do I dispose of a broken LED lamp?
A: Treat it like electronic waste. Many municipalities accept automotive LEDs at e-recycling centers. (Wikipedia)