How Do I Clear the Bulb Out Indicator After Installing a Flat Bed?

Updated 07/16/2026 | Published 07/14/2026

Products Featured in This Question

Load Resistor Kit for LED Turn Signals - 50 Watts - 6 Ohm - Qty 2

(39)

$13.52

Question:

2015 Ram 3500. installed a flat bed, different tail lights now the indicator is showing bulb out how do i fix it. im not using the original tail lights

asked by: Dan

Expert Reply:

Hi Dan,

It's a common issue we see when installing a flatbed on that generation of Ram trucks. The truck's Body Control Module (BCM) monitors the draw of the taillights and when they're replaced (especially with LEDs) the BCM thinks a bulb has burned out because it's seeing less current than expected. First thing I'd do is double check that it's wired in correctly and has a good ground. If the new lights are LEDs, then installing a load resistor kit like the Diamond Load Resistor Kit for LED Turn Signals part # DI34ZR will simulate the electrical load of the factory incandescent bulbs and often clears the warning.

What brand of flatbed did you have installed on your truck?

expert reply by: Claire H