Buy Lexus RX400h Tail Light Assembly

The Lexus RX400h, produced between 2006 and 2008, features a rear combination lamp assembly that includes the tail light, brake light, and turn signal functions. These assemblies are integrated LED units, which means individual bulbs are not replaceable. If one section fails, the entire assembly must be replaced. The OEM part numbers for the left and right rear tail light assemblies are 8156148100 and 8156148101, respectively . (Lexus Parts, Club Lexus, Lexus Parts)

The tail light assembly in the RX400h is an LED unit, and individual bulbs are not replaceable. If a section of the tail light fails, the entire assembly must be replaced. For the rear turn signal, the standard bulb is a 7440NA, which is a 21-watt amber bulb . However, some owners have reported that the turn signal blinks rapidly or doesn't blink at all when the bulb is burnt out . (LightBulbs.com, Car Care Kiosk)

• Condensation Inside the Lens: Some owners have reported condensation inside the tail light lens. While this can be normal, if it doesn't dissipate after a few days, it may indicate a seal failure, allowing moisture to enter . (Facebook, Lexus Owners Club)
• Non-Functional Sections: If a section of the tail light stops working, it's likely that the entire assembly needs to be replaced, as the LEDs are not individually serviceable . (Reddit)

Replacing the tail light assembly involves removing the interior panel in the cargo area to access the mounting bolts. Once the bolts are removed, the assembly can be pulled out and disconnected. Installation of the new assembly is the reverse process. It's recommended to consult a professional if you're not experienced with automotive repairs. (Lexus Owners Club of North America)

The tail light wiring diagram for the 2006-2008 RX400h can be found in the vehicle's service manual or through online resources. The fuse for the tail lights is located in the driver's side instrument panel fuse box. If the tail lights are not functioning, checking the fuse is a good first step . (Commando Car Alarms)

A: To replace the tail light assembly, remove the interior panel in the cargo area to access the mounting bolts. After removing the bolts, pull the assembly out and disconnect it. Install the new assembly by reversing these steps. If you're not experienced with automotive repairs, it's recommended to consult a professional.

Q: Can I replace just the bulb in my RX400h tail light?

A: No, the tail light assembly in the RX400h is an integrated LED unit. If a section fails, the entire assembly must be replaced .

Q: What should I do if I notice condensation inside my tail light lens?

A: Some condensation can be normal and may dissipate after a few days. If it doesn't go away, it may indicate a seal failure, allowing moisture to enter. In such cases, replacing the assembly may be necessary . (Lexus Owners Club)

Q: My turn signal blinks rapidly; what could be the cause?

A: A rapidly blinking turn signal often indicates a burnt-out bulb. In the RX400h, the turn signal bulb is a 7440NA amber bulb . If the bulb is functional but the blinking persists, it may be a wiring issue. (Car Care Kiosk, Super Bright LEDs)

Q: Where can I find the wiring diagram for my RX400h tail lights?

A: The wiring diagram for the 2006-2008 RX400h can be found in the vehicle's service manual or through online resources. These diagrams can assist in diagnosing electrical issues . (Commando Car Alarms)

Q: How do I check the fuse for the tail lights?

A: The fuse for the tail lights is located in the driver's side instrument panel fuse box. Refer to the vehicle's owner's manual for the exact fuse location and specifications . (StartMyCar)

Q: What are the OEM part numbers for the tail light assemblies?

A: The OEM part numbers for the left and right rear tail light assemblies are 8156148100 and 8156148101, respectively . (Lexus Parts)

Q: Can I install aftermarket tail lights on my RX400h?

A: Aftermarket tail lights are available for the RX400h, but installation may require modifications to the vehicle's wiring or connectors. It's important to ensure compatibility and consider professional installation to avoid issues.

Q: Are there any LED options for tail lights?

A: Yes, LED tail lights are available for the RX400h. These can offer brighter illumination and a modern look. However, ensure that the LED units are compatible with your vehicle's electrical system to prevent issues.

Q: What should I do if my tail lights are not working?

A: If your tail lights are not functioning, start by checking the fuse and bulb. If both are in good condition, the issue may lie within the wiring or the tail light assembly itself. Consult a professional if you're unable to diagnose or resolve the problem.

Q: How can I prevent condensation in my tail light lens?

A: To prevent condensation, ensure that the tail light assembly is properly sealed. If you notice moisture inside, address it promptly to prevent potential damage to the electrical components. (Car Care Kiosk)

Q: Is there a warranty on tail light assemblies?

A: Warranty coverage for tail light assemblies varies by manufacturer and retailer. It's advisable to check the warranty terms before purchasing to understand the coverage and duration. (eBay)

Q: How can I upgrade my tail lights?

A: Upgrading to LED or sequential tail lights can enhance visibility and aesthetics. Ensure that any upgrades are compatible with your RX400h and consider professional installation to avoid electrical issues. (eBay)

Q: Where can I purchase replacement tail light assemblies?

A: Replacement tail light assemblies can be purchased through authorized dealerships or reputable automotive parts suppliers. Ensure that the parts are compatible with your RX400h model year. (AutoZone.com)

Q: Can I install tail light assemblies myself?

A: While it's possible to install tail light assemblies yourself, it's recommended to have the installation performed by a professional to ensure proper fitment and functionality.

Q: What tools are needed to replace a tail light assembly?

A: Basic tools required include a socket wrench set, screwdrivers, and possibly a trim removal tool. Refer to the vehicle's service manual for specific instructions and tools needed.

Q: How long does it take to replace a tail light assembly?

A: The replacement process typically takes about 30 minutes to an hour, depending on experience and the specific vehicle model. Professional installation may take less time.

Q: What are the benefits of LED tail lights?

A: LED tail lights offer benefits such as brighter illumination, faster response time, and longer lifespan compared to traditional bulbs. They also consume less power, which can be beneficial for hybrid vehicles like the RX400h.

Q: Are there any legal considerations when upgrading tail lights?

A: When upgrading tail lights, ensure that the new units comply with local vehicle lighting regulations. Non-compliant lighting can result in fines or failed vehicle inspections.

Q: Can I install sequential turn signals?

A: Sequential turn signals are available for the RX400h. Installation may require additional wiring and modifications. It's important to ensure compatibility and consider professional installation.

Q: How can I improve the brightness of my tail lights?

A: Upgrading to high-quality LED tail lights can improve brightness. Regularly cleaning the lens and ensuring proper electrical connections can also enhance illumination.

Q: What should I do if my tail light assembly is damaged?

A: If your tail light assembly is damaged, it's important to replace it promptly to maintain visibility and safety. Consult a professional for assistance in selecting and installing a replacement.