Tow mirrors.

Londart2020 · July 2, 2020

Anyone know if you can switch out the 2020 SLT Premium Plus non tow mirrors out for the tow mirrors? Just bought a trailer and they are a little on the small side. Would they be a direct swap? Thanks.

Transient · July 13, 2020

It did this on a 2007 Tahoe, so my knowledge may not be up to par. Iirc, you need an appropriate door window switch for the mirrors, and a reflash of the BCM. My truck came from the factory with the tow mirrors, so I'd go the opposite direction if I did this.

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newdude · July 13, 2020

On 7/2/2020 at 4:59 PM, Londart2020 said:

Anyone know if you can switch out the 2020 SLT Premium Plus non tow mirrors out for the tow mirrors? Just bought a trailer and they are a little on the small side. Would they be a direct swap? Thanks.

You can't do the kit mirrors as they won't work with any of the safety features your truck has like the blind spot indicators.

You'd have to get individual mirrors that match your truck configuration and potentially change out the door wiring harnesses.

7 hours ago, Transient said:

It did this on a 2007 Tahoe, so my knowledge may not be up to par. Iirc, you need an appropriate door window switch for the mirrors, and a reflash of the BCM. My truck came from the factory with the tow mirrors, so I'd go the opposite direction if I did this.

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Lots has changed since the GMT-900s....

Transient · July 13, 2020

Lots has changed since the GMT-900s....

That's good to know. Thanks! I'm buying a Trail Boss with the tow mirrors already installed. Just agreed on terms about an hour ago. Now to wait for the truck to arrive.

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Northsky Blue · August 22, 2020

My 2020 LTZ Crew Cab has standard power mirrors with blind spot warning and Lane Change worning.

I just learned that GM currently does not have a Trailering mirror/harness set if you have these features.

I hate to think I have to buy mirror extender caps until GM has the correct Trailering mirrors/harnesses available for my truck.

Transient · August 23, 2020

My 2020 LTZ Crew Cab has standard power mirrors with blind spot warning and Lane Change worning.
I just learned that GM currently does not have a Trailering mirror/harness set if you have these features.

I hate to think I have to buy mirror extender caps until GM has the correct Trailering mirrors/harnesses available for my truck.

With trailering mirrors you don't need those features. You're able to see what's in your blind spot.

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ArTurf · August 23, 2020

For what it's worth the tow mirrors create blind spots left & right. I ordered my truck with these and wish I didn't.

Transient · August 23, 2020

For what it's worth the tow mirrors create blind spots left & right. I ordered my truck with these and wish I didn't.

I have them too. I don't regret buying the truck with them, but the extra width is a factor worth considering when going to places like the carwash. All mirrors create blind spots. So do the A pillars, but we manage to work around that. It's no different.

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pewterliftedz · August 23, 2020

23 hours ago, Northsky Blue said:

My 2020 LTZ Crew Cab has standard power mirrors with blind spot warning and Lane Change worning.

I just learned that GM currently does not have a Trailering mirror/harness set if you have these features.

I hate to think I have to buy mirror extender caps until GM has the correct Trailering mirrors/harnesses available for my truck.

GM does not support swapping tow mirrors unless you have a basic features. GM only makes 2 types of tow mirrors for the 1500, basic with power adjust , and fully loaded (blind spot, 360 camera, and power folding). I added the fully loaded mirrors to my basic LTZ that doesn’t have 360 cameras, they bolted up and work great. I still need to add the door harness so that the extra lights on these mirrors work.

FYI these mirrors mirrors are $800+ per side and door harness $100 per side.

Edited August 23, 2020 by pewterliftedz

Wintersun · August 28, 2020

On my 2011 2500 truck there were the standard mirrors when I saw it on the lot and I got the dealer to agree to swap them out for the tow mirrors. No big deal as they both mounted the same and the wiring for adjusting the mirrors and the LED turn signal indicators was the same. I doubt that GM would make trucks so that when adding one type of mirror for the build based on the dealer's order that something other than the mirror needed to be changed.

Tow mirrors in the past have not have the blind side detection but that is changing with some of the 2021 trucks, Ram trucks for example.

pewterliftedz · August 29, 2020

59 minutes ago, Wintersun said:

On my 2011 2500 truck there were the standard mirrors when I saw it on the lot and I got the dealer to agree to swap them out for the tow mirrors. No big deal as they both mounted the same and the wiring for adjusting the mirrors and the LED turn signal indicators was the same. I doubt that GM would make trucks so that when adding one type of mirror for the build based on the dealer's order that something other than the mirror needed to be changed.

Tow mirrors in the past have not have the blind side detection but that is changing with some of the 2021 trucks, Ram trucks for example.

The tow mirrors on the high end trucks do have blind spot, my LTZ has them.

Duramax3oh · August 31, 2020

On 8/23/2020 at 5:36 PM, pewterliftedz said:

GM does not support swapping tow mirrors unless you have a basic features. GM only makes 2 types of tow mirrors for the 1500, basic with power adjust , and fully loaded (blind spot, 360 camera, and power folding). I added the fully loaded mirrors to my basic LTZ that doesn’t have 360 cameras, they bolted up and work great. I still need to add the door harness so that the extra lights on these mirrors work.

FYI these mirrors mirrors are $800+ per side and door harness $100 per side.

What was the process like after you got it hooked up? As in any programming needs or getting the power mirror adjusters working or lights?

Got my free oil change at the dealership today and asked them about it and the guy was like “probably around 500 for install”. That seems outrageous to me. You did it easy enough on your own?

Edited August 31, 2020 by Duramax3oh

pewterliftedz · September 1, 2020

21 hours ago, Duramax3oh said:

What was the process like after you got it hooked up? As in any programming needs or getting the power mirror adjusters working or lights?

Got my free oil change at the dealership today and asked them about it and the guy was like “probably around 500 for install”. That seems outrageous to me. You did it easy enough on your own?

Just plug and play, it took maybe 45 minutes total to remove the door panels and install them. I haven't done any programming, and I don't plan to. I just ordered the new correct door harness for these tow mirrors, hopefully they arrive soon and I can know for sure if all the lights work properly. I do know that the wires are properly landed from the BCM to the door harness, but I do not know if they need to be programmed to work. I'll let you know how it goes.