Mirror Spot Lights Speed Override Mod Harness for 2015-2022 Ford

In this review the focus is on a simple, single-purpose harness that solves a common annoyance for Ford truck owners: mirror spot lights that shut off above 6 mph. For drivers who use OEM or upgraded towing mirror spot lamps while camping, offroading, or navigating dark roads, the harness provides a reliable override so the spots stay on whenever the factory button is pressed. Installation is plug-and-play and it preserves OEM appearance, making it a straightforward upgrade for owners of compatible F-150 and Super Duty models.

Key Features

• Fitment: Direct fit for 2015-2020 Ford F-150, 2017-2020 F-150 Raptor and 2017-2022 F-250/F-350 Super Duty trucks with the factory spot lamp control button, so no vehicle wiring changes are required.
• Speed override: Removes the factory speed limit that turns mirror spot lights off at about 6 mph, allowing the lights to remain on while driving when the OEM button is pressed.
• Plug-and-play: Installs by unplugging the green connector at the spot lamp module and inserting the harness, avoiding trimming or splicing and keeping installation quick and reversible.
• Single-harness solution: Only one forward-facing mirror light harness is required per truck, simplifying fitment and reducing cost compared with multi-piece kits.
• OEM-compatible: Works with both factory mirror spot lamps and many aftermarket towing mirror spot lamps, maintaining factory functionality and appearance.
• Durable build: Includes an OEM-style green connector and heat-resistant corrugated pipe for reliable, long-term use in under-dash locations.

Who It's For

This harness is best for Ford owners who already have mirror spot lights and want them to remain operational at any speed: people who tow at night, camp, or drive on rural roads and need steady auxiliary illumination. It is also useful for owners who upgraded to towing mirrors or added the factory spot lamp switch and want a seamless electronic solution.

It is not for owners who lack the factory spot lamp control button, mirror wiring, or spot lamp control module unless they are prepared to add those factory components first. Also, drivers who prefer automatic factory behavior without manual override should look elsewhere.

Pros & Cons

Pros

• Keeps mirror spot lights on at any speed when the OEM button is pressed, improving usefulness while driving or camping.
• Plug-and-play installation with an OEM green connector makes fitment fast and reversible.
• Compatible with both OEM and many upgraded towing mirror spot lamps, so it works with common mirror upgrades.

Cons

• Requires the vehicle to already have the spot lamp switch and control module; trucks without those items will need additional parts.
• User must remember to switch the spot lights off when the truck is turned off to avoid leaving them on.

Specifications

Compatible Models	2015-2020 Ford F-150; 2017-2020 F-150 Raptor; 2017-2022 F-250/F-350 Super Duty
Function	Mirror spot light speed override module
Installation	Plug-and-play via OEM green connector at spot lamp module
Included Parts	1 harness with OEM green connector and heat-resistant corrugated pipe
Compatibility	Works with OEM and many aftermarket towing mirror spot lamps
Required Vehicle Items	Factory spot lamp control button and spot lamp control module

Our Verdict

For Ford truck owners who already have mirror spot lights and the factory control components, this override harness is a low-cost, low-effort fix that restores practical control of auxiliary mirror lighting. It preserves OEM appearance, installs quickly, and makes the spot lights genuinely usable while driving or camping, offering strong value for its simple purpose.

Frequently Asked Questions

Will this work if my truck did not come with spot lights?
The harness requires the truck to have mirror spot lights, the spot lamp switch and the spot lamp control module; it will not add those components.

Is installation permanent or reversible?
Installation is plug-and-play by inserting the harness between the factory green connector and the spot lamp module, so it is reversible without cutting wires.

Do the spot lights stay on when driving?
Yes, when the OEM spot lamp button is pressed the module removes the factory 6 mph cutoff so the spots stay on until manually switched off.