Originally Posted by ElectroBoy

I wanted to upgrade my weak incandescent OEM turn signal bulbs on my 18 ORP to LED. For the rear bulbs I got the amber 7440/7441 LASFIT LED bulbs based on forum member recommendations here. 7440 W21W CAN-BUS Anti Hyper Flash LED Turn Signal Lights, Amber Yellow - Lasfit Auto Lighting

Trying to install them from inside the trunk, I realized that there’s not enough slack in the harness to orient and insert the much longer LED bulb into the taillight housing. So I had to remove the whole taillight assembly for easier access to the bulb and socket. I spent a small amount of time searching the forum for guidance and realized that after removing the the 10mm nuts and the tailgate connector from the inside, behind the access cover, you have to pull off the taillight from the outside.

I started with the passenger side. I had to find a little fingerhold on the inside hatch edge (left) side of the housing and a pressure fit with my palm on the (right) outside edge. Using a lot of force to break it free pulling straight outward, no twisting or turning, it released with a loud pop. There are two tabs that hold it in place on the passenger side; one is a metal bulb-like tab, the other is a rectangular plastic tab that rotates. When you re-install the taillight assembly you need to orient that plastic tab just right. Plus there’s a small circular channel that fits over a white button on the external side of the fender.

On the driver side there are two metal tabs, no plastic rectangular tab.

The LED bulb installs easily now. Line up the taillight housing and temporarily plug in the white connector to test the LED for the correct polarity by turning on the 4way emergency flashers. Now you can see the difference and how bright the LEDs are.

Line up the tabs, push the housing into place, install the two nuts, and enjoy your super bright rear turn signals.

Note: The LASFIT website describes the possibility of hyperflash if the flashers are On for a long time. To test this I left the hazard flashers On for over 10 minute on a 90F+ day and they did not hyperflash. Although they did get into a shortened flash mode. That is, a shortened flash On time. Normally they blink On for 0.5 seconds, Off for 0.5 seconds. After several minutes of continuous blinking operation they continue to blink but the On time is only about 0.2 seconds. Apparently there’s a thermal fusing function that turns off the LEDs if they get too hot.

So far I’m pretty pleased with their function. They are amazingly bright. I pity the fool who is behind me at night in the left turn lane with my flasher on!