Unique_NY

Sounds like a good opportunity to change it to a custom matte paint color or plastidip or something like that?

Do you get a rumble when slowing to a stop between 10-15mph? Almost like a backpressure issue? I have the Touring and when coming to a stop I get a rumbling downshift or something that isn't pleasant because in addition to the rumble, it squeaks/squeals a little bit too. When taking it to L9 I don't get that so I'm pretty sure its the DFM. I don't get other odd exhaust sounds when in L9 at any RPM for that matter.

The Pulsar seems to be my only option to disable DFM, really wish they were able to come out with the regular Range device for $200. I would buy one yesterday.

I have the VIOFO A119 V3 hardwired into my passenger side glovebox. Works great.

I made the below post on a different thread. They are ordering me a new one and frankly since it was on full rebate I may just sell it...or throw it out and go with one that sits on the rails... After waiting over a month on the Rev cover, I had it installed at the dealer today. It ended coming right off. As OP said the fit and finish on these are HORRIBLE. I'm glad I have it the once over before leaving because the tailgate didn't even meet up with the end of the cover. OK, lets just shimmy it back. Check the front...gaps galore...seemingly missing rubber? In the front, the flap doesn't sit flush in the corners and in the back, its not flush and there seems to be more rubber missing there. They are giving me all sorts of issues because I used the $1000 Truck Month incentive to order this, so they don't know how to "return" it. I'm not sure if I want to wait however long since they are still on backorder. The Bakflip MX4 looks great with the reinforced caps at the corners...

I'm not sure I follow you? From my experience, it doesn't dim only when its dark...just the opposite. It senses when you are getting light from behind and dims. Therefore covering whatever sensor senses the light from behind should prevent dimming, no?

Are you talking about the rearview mirror dimming or the sideview mirror dimming?

In my couple weeks with the Borla Touring (GMPE equivalent) I haven't heard any drone. Only thing I've noticed is that when coming slowing to a stop at about 11-16 MPH I get a downshift that I can hear quite prominently through the exhaust. Usually its accompanied by a tiny squeal/chirp too which I find kind of annoying.

Yes, here is the TSB. Take it to the dealer and have them re-program.

After waiting over a month on the Rev cover, I had it installed at the dealer today. It ended coming right off. As OP said the fit and finish on these are HORRIBLE. I'm glad I have it the once over before leaving because the tailgate didn't even meet up with the end of the cover. OK, lets just shimmy it back. Check the front...gaps galore...seemingly missing rubber? In the front, the flap doesn't sit flush in the corners and in the back, its not flush and there seems to be more rubber missing there. They are giving me all sorts of issues because I used the $1000 Truck Month incentive to order this, so they don't know how to "return" it. I'm not sure if I want to wait however long since they are still on backorder. The Bakflip MX4 looks great with the reinforced caps at the corners...

This and your previous post, I don't think we're talking about the Rearview Camera/mirror. I'm guessing OP is talking about his sideview mirror as he mentioned tints, but posted a picture only of his rearview mirror. Unless his back glass is tinted in which he should be using the rearview camera in that case...which leads me to believe we're talking about the sideview mirror. Also the camera display doesn't auto dim when it's on. The auto dimming is only for when the regular mirror is engaged. Finally, I was talking about the mirror itself, not the DRZ/CWM functionality. Another case which I was confused on why he would have trouble seeing out the mirror, if he has the rear camera display...again leading me to believe we're still talking about sideview mirrors. That being said, I'm not sure where the sideview mirror dimming sensor is. I have a feeling there is a sensor on that mirror itself and it doesn't feed off of the rearview mirror's sensor. I looked at mine and couldn't determine, usually there is a little dot you can see under the glass.

Last night I was trying to do some rough testing by covering up that part on the mirror with my thumb and it seemed to un-dim. Tough to tell 100% though while I was trying to drive. Slap a piece of electrical tape over this sensor and see if that works for you. Also, do they put these mirrors in all the LTZ's even if you don't have the Tech Package? You don't have the Reverse Camera Mirror....if you pull the tab towards you? I pretty much use the camera exclusively, its really nice.

You have to leave it in L9.

Not true. I have the Rear Camera Mirror and when the camera display is off, it auto-dims.

I like these ones a lot. On my '17 Sierra All Terrain I have the 4" round black ones. They got kind of slippery in the rain and snow. These ones are wide and still classy looking on the LTZ. Wheel to wheel definitely helps in the front of the bed.