Blind Spot mirror to Spotter style mirror and keeping BLIS

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Joined
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Location
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Recently I decided to get rid of my hazy lined out almost impossible to use auto dimming monchromatic driver mirror in favor of the less complicated easier to find spotter style mirrors with the small convex glass built into the corners. The issue is the BLIS or blind spot monitoring system does not work with these mirrors (lack of indicator on the mirror) so it sets off an alert for the system and the cross traffic system.

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A few solutions, live with it, replace with the same failure prone auto dimming mirror, disable the system with forscan possibly, or relocate the indicators. I chose the latter and this is how I did it.

First, I replaced the mirrors, I can see and I'm happy about that.

20250110 164427

Next, deciding where to put the indicators, I immediately recalled another car brand mounting them in the sail trim and there is room inside to mount them in the taurus. After that it was deciding what to use as indicators, initially I sourced some 5mm amber LEDs which were perfect (left in picture) but was concerned they may be too bright and annoying so I took apart the original mirrors and removed the existing led and found them to be perfect. Flat with diffuser and 2 wire simple connection, plus easily removed from the back of the glass.

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After deciding on indicators and placement I drilled a jagged hole in the sail trim (use a sharp bit, I didnt.) And with some help from the wife filled them with epoxy for a flush window.

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The epoxy set over night and I started assembling the sail panels. I used 3m VHB double sided tape since I had it on hand, added some heat for adhesion and lined up the light with the hole.

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Now for wiring. I couldn't find any diagrams or pinouts for the mirrors so I sacrificed my damaged mirror to trace the wires back to the pins. Once I knew what wires I needed I tapped the indicator leads into the harness behind the plug. (I expect the criticism for using wire taps, be gentle though).

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Now that it was wired up I simply snapped the sail panels back in place and started the car so it could do its self test. No error messages and the lights lit up on que. They seem like they won't be intrusive or annoying any more so than the original set up and I now have the best of both worlds. Spotter glass, no auto dim to deteriorate, and BLIS for those hard to tell situations.

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Joined
Sep 6, 2023
Messages
870
Reaction score
1,078
Location
Florida
Could've gone under exterior mods/upgrades but it's an issue with factory equipment that effects a lot of us. I hope someone gets some use out of it. The process minus letting the epoxy set took about an hour- hour and a half, that's replacing the mirrors, gutting the old ones, drilling the holes and splicing the wires. If you reuse the indicators from the old mirrors and pick up some salvage spotter mirrors it's under $50 (depending on where you get your mirrors)

I replaced the puddle lights with LEDs, bought the leds for indicators (that I didn't use) and dipped the covers. With the cost of the replacement mirrors I'm at $66ish for everything, links below

LKQ pick your part side view mirror
Walmart Plasti Dip (cheaper in the store)
Amazon Puddle Lights
Amazon 5mm Indicator lights
 

kryptto

The Best Thing About Cars... ones in my mirror.
Supporting Member
Joined
Mar 24, 2023
Messages
3,201
Reaction score
2,071
Location
South East, Florida
Recently I decided to get rid of my hazy lined out almost impossible to use auto dimming monchromatic driver mirror in favor of the less complicated easier to find spotter style mirrors with the small convex glass built into the corners. The issue is the BLIS or blind spot monitoring system does not work with these mirrors (lack of indicator on the mirror) so it sets off an alert for the system and the cross traffic system.

View attachment 92965View attachment 92981
A few solutions, live with it, replace with the same failure prone auto dimming mirror, disable the system with forscan possibly, or relocate the indicators. I chose the latter and this is how I did it.

First, I replaced the mirrors, I can see and I'm happy about that.

View attachment 92963

Next, deciding where to put the indicators, I immediately recalled another car brand mounting them in the sail trim and there is room inside to mount them in the taurus. After that it was deciding what to use as indicators, initially I sourced some 5mm amber LEDs which were perfect (left in picture) but was concerned they may be too bright and annoying so I took apart the original mirrors and removed the existing led and found them to be perfect. Flat with diffuser and 2 wire simple connection, plus easily removed from the back of the glass.

View attachment 92966View attachment 92969

After deciding on indicators and placement I drilled a jagged hole in the sail trim (use a sharp bit, I didnt.) And with some help from the wife filled them with epoxy for a flush window.

View attachment 92970

The epoxy set over night and I started assembling the sail panels. I used 3m VHB double sided tape since I had it on hand, added some heat for adhesion and lined up the light with the hole.

View attachment 92971View attachment 92975View attachment 92976

Now for wiring. I couldn't find any diagrams or pinouts for the mirrors so I sacrificed my damaged mirror to trace the wires back to the pins. Once I knew what wires I needed I tapped the indicator leads into the harness behind the plug. (I expect the criticism for using wire taps, be gentle though).

View attachment 92978

Now that it was wired up I simply snapped the sail panels back in place and started the car so it could do its self test. No error messages and the lights lit up on que. They seem like they won't be intrusive or annoying any more so than the original set up and I now have the best of both worlds. Spotter glass, no auto dim to deteriorate, and BLIS for those hard to tell situations.

View attachment 92984View attachment 92983
Sweet bookmarked
 
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