Reverse lights always on
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Cross-Country
Joined: Feb 2015
Posts: 52
Likes: 0
Reverse lights always on
I have a 2019 F250 and replaced my reverse lights with LED bulbs - they are a HUGE improvement over stock. I recently noticed the reverse lights stay on all the time. The constant on is significantly less bright than in reverse, but they are constantly on.
I am not sure if this is due to the LED bulbs being more sensitive to small amounts of voltage, or an issue with power somehow back feeding to the reverse lights, or possibly a combination. I have paid attention to other similar year trucks on the highway (2017-2019) and noticed that several appear to have the reverse lights on while driving - most of which appear to have OEM reverse lights. I do not recall noticing this on the 2020+ trucks.
Has anyone else noticed or experienced this? Any thoughts on where the issue may be?
I am not sure if this is due to the LED bulbs being more sensitive to small amounts of voltage, or an issue with power somehow back feeding to the reverse lights, or possibly a combination. I have paid attention to other similar year trucks on the highway (2017-2019) and noticed that several appear to have the reverse lights on while driving - most of which appear to have OEM reverse lights. I do not recall noticing this on the 2020+ trucks.
Has anyone else noticed or experienced this? Any thoughts on where the issue may be?
Mountain Pass
Joined: Jul 2018
Posts: 153
Likes: 39
I have a 2019 F250 and replaced my reverse lights with LED bulbs - they are a HUGE improvement over stock. I recently noticed the reverse lights stay on all the time. The constant on is significantly less bright than in reverse, but they are constantly on.
I am not sure if this is due to the LED bulbs being more sensitive to small amounts of voltage, or an issue with power somehow back feeding to the reverse lights, or possibly a combination. I have paid attention to other similar year trucks on the highway (2017-2019) and noticed that several appear to have the reverse lights on while driving - most of which appear to have OEM reverse lights. I do not recall noticing this on the 2020+ trucks.
Has anyone else noticed or experienced this? Any thoughts on where the issue may be?
I am not sure if this is due to the LED bulbs being more sensitive to small amounts of voltage, or an issue with power somehow back feeding to the reverse lights, or possibly a combination. I have paid attention to other similar year trucks on the highway (2017-2019) and noticed that several appear to have the reverse lights on while driving - most of which appear to have OEM reverse lights. I do not recall noticing this on the 2020+ trucks.
Has anyone else noticed or experienced this? Any thoughts on where the issue may be?
Tuned
Joined: Sep 2007
Posts: 346
Likes: 11
From: Austin, TX
Most LEDs use phosphors on top of the actual light emitting diode to generate the light we actually see. Those phosphors tends to glow for a bit once the LED is actually off which can be very noticable at night but not really during the day. Are you referring to that glow -or- are they still emitting a minute or two after being off?
Mountain Pass
Joined: Oct 2021
Posts: 212
Likes: 58
Yeah, put a fat 6 or 12 ohm 50 watter across the circuit, that'll fix it.
Auto parts stores sell them. In the lighting section. They get pretty hot. Best to screw them to bare metal for heat dissipation, chinesium power resistors are kind of weak. If you can find genuine IRC, Dale, etc, they can take the heat. Just keep them away from the harness. Amazon sells them also.
Two 12s in parallel = 6
Two 6s in series = 12
12 ohm @ 12v = 1a = 12watts
But go for the aluminum ones you can screw down. If you have some Heatsink Compund, like used in computers and electronics, that will make them run even cooler. It aids the transfer from the resistor and the thing it's bolted to. Steel is OK, not as good of a heatinsink as Auminum, but it still really helps.
Auto parts stores sell them. In the lighting section. They get pretty hot. Best to screw them to bare metal for heat dissipation, chinesium power resistors are kind of weak. If you can find genuine IRC, Dale, etc, they can take the heat. Just keep them away from the harness. Amazon sells them also.
Two 12s in parallel = 6
Two 6s in series = 12
12 ohm @ 12v = 1a = 12watts
But go for the aluminum ones you can screw down. If you have some Heatsink Compund, like used in computers and electronics, that will make them run even cooler. It aids the transfer from the resistor and the thing it's bolted to. Steel is OK, not as good of a heatinsink as Auminum, but it still really helps.
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