2001-2004 Toyota Tacoma LED Rear Turn Signal Bulbs: Looking for upgraded LED Rear Turn Signal bulbs from a reputable brand and value the fact that we've actually tested them on your truck? Our TRS Tested kits include all the right components to ensure perfect fit, function, and performance from the upgrade. At The Retrofit Source, we do 2001-2004 Toyota Tacoma LED lighting upgrades better!

2001-2004 Toyota Tacoma LED Rear Turn Signals Kit:

The Carbide Series of LED bulb: is one of the latest and greatest technological advancements in LED technology that you will see in automotive lighting! Using state of the art 2835 SMD LED chips to produce unparalleled light output with high-efficiency power usage! The design of the Carbide series looks like it could CUT so it's an awesome choice in applications where you can actually see the bulb in the housing and want it look impressive.

Constant Current Driver: The Carbide Series of LED bulbs from GTR Lighting are built using a state of the art Constant Current Driver inside the bulb. This allows them to be more reliable when used on vehicles that have voltage fluctuations due to electrical system design or fault. A constant current driver is a device that takes any incoming voltage and smooths it out, regulates it, so a steady stream of voltage/current reaches the LED. This helps the LED bulb last longer than bulbs that don't have this device built in.

When installing: LED bulbs to replace your factory blinker bulbs, you will have a "fast flash" or "hyperflash" problem. This means the vehicle will think you have a light bulb burnt out and, as an indicator to you, will flash quicker than normal. Installing these resistors will fool your vehicle into thinking it has a light bulb in good condition installed and will blink normally. Simply wire the resistor between the ground wire and the blinking positive wire.

When installing: LED xenon lighting in some vehicles it will not work properly because the vehicle uses a CANBUS monitoring system. It sees the LED ballast instead of a regular halogen bulb and thinks there is a problem. Some cars or trucks will give a light-out warning indicator light on the dash, others will simply not supply headlight voltage, or flicker the headlight voltage. Installing this universal resistor kit with your LED kit will fool your vehicle into thinking it has a normally functioning halogen headlight in place.Simply wire the resistor between the ground wire and positive wire for the headlight bulb.

WARNING!: The resistors get hot! It is very important to mount them to something metal behind the headlights with screws, not zip ties. The resistors get so hot they can melt some light plastic and short wires. Keep them away from all wiring and heat sensitive materials!

TRS Tested: Here at The Retrofit Source, we've spent the time to install and test all TRS Tested products, so we know it'll work exactly as shown and right out of the box! Not only that, but we don't favor one particular brand. We just deliver the best product for the application, period. Be sure to reference our install videos for helpful tips on making the installation process quick, painless, and clear. TRS Tested: We ensure fitment and function. You do the install. For other compatible upgrades, use the Buyers Guide on our homepage!