Mirror heaters

daveor · October 23, 2013

I notice that when I do a remote start,, that the mirror heaters DON'T come on. I had a 2010 GMC Sierra and they came on. along with the back window defroster and the heated seats.. My seats work,, kind of,, they get just slightly warm, but the mirror heaters do not work at all.. I checked with my dealer today and they could find nothing about being able to make them come on with the remote start. I love the fact that I can have a fog free mirror when backing out of my drive in the morning.Not sure how to PM the GM customer service that posts on here, other wise would ask them. Anybody got any ideas how to turn the heaters on? Thanks

jj46 · October 23, 2013

I wrote Jennifer and included the seat issue. I didn't think about the mirrors though. GM has to know it's a software bug, my guess is they just won't acknowledge it until there is a fix.

GMCustomerService · October 25, 2013

daveor,

Hello! I see that you are looking for me. I am sorry to learn that you have a concern about your mirror heaters. If you cannot private message me, you may email me at [email protected]. Please put Attention Jennifer T. in the subject. Please include a reference to this thread, full name, address, phone number, VIN, current mileage, and preferred dealership in the email.

Thank you,

Jennifer T.

GM Customer Care

Sir Dan · October 25, 2013

I also understand that the auto climate control no longer heats or cools as needed when remote started as the '07 - '13 models did. You have to remember to put the HVAC settings where you'll need them. So now we can add the defrost, mirror heat, and heated seats to the list. Not happy to hear these type of things. Seems like we're going backwards on convenience features with these new trucks.

2016 Sierra Owner · October 25, 2013

I never thought about the heated mirror and windows coming on with remote start till I read this post. However yesterday when I got into my truck after remote starting it. The mirror/window heat was on already when I went to turn it on. So I guess it does work sometimes?

daveor · October 25, 2013

I never thought about the heated mirror and windows coming on with remote start till I read this post. However yesterday when I got into my truck after remote starting it. The mirror/window heat was on already when I went to turn it on. So I guess it does work sometimes?

I wonder if it is a GMC thing,, my 2010 Sierra mirror heaters came on,, but my 2014 Silverado don't

ShotgunZ71 · October 25, 2013

Per the manual, the mirrors defog when the rear window defogger is activated and the switch must be in the on/run position. It MAY come on with remote start based on ambient conditions, but the indicator light does not come on during this time. The heated seats will work when remotely started, but turn off when key is turned on. You must manually turn them back on. Also, heated seat performance will be reduced when seat it unoccupied.

That's all I can find regarding these issues in my manual. If it doesn't work, a setting could be turned off (I checked mine to make sure), or there is an issue with your truck. Hope it can be of some help.

daveor · October 26, 2013

working with GM customer support now.. will let you know the outcome. Thanks for the ideas

daveor · October 28, 2013

I got a phone call from a GM tech Friday afternoon,, said he would look into it. My dealer called this morning,, they heard from the tech,, said no software updates at this time, but have it documented now. Said would keep me informed if they hear anything more. So,, I guess I have to wait till I get in the truck to turn the mirror heaters on for the time being.

redwngr · October 29, 2013

Heated/cooled seats must be enabled in personalization menu to work with remote start.

From manual:

The heated or cooled seats will not

turn on during a remote start unless

they are enabled in the vehicle

personalization menu. See Remote

Vehicle Start on page 2-6 and

Vehicle Personalization on

page 5-44.

Not sure if this is also true of the heated mirrors.

It also says the seat indicator will not come on, and that the seats will turn off when the key is turned (same as gmt900 generation)

daveor · October 29, 2013

Heated/cooled seats must be enabled in personalization menu to work with remote start.

From manual:

The heated or cooled seats will not

turn on during a remote start unless

they are enabled in the vehicle

personalization menu. See Remote

Vehicle Start on page 2-6 and

Vehicle Personalization on

page 5-44.

Not sure if this is also true of the heated mirrors.

It also says the seat indicator will not come on, and that the seats will turn off when the key is turned (same as gmt900 generation)

I had the seats already turned on,, my dealer said they made sure they were on too.. I remotely started the truck, left it run for almost 10 minutes, the mirrors were still fogged up.. got in, drove about a mile, after i turned them on,, fog was all gone, so I know they did not turn on. Am sure that there is a simple software fix.

rocnrol · October 29, 2013

I was just at the dealership this morning about the whole remote start thing. There have been a lot of correct posts here on this. The seats do come on, but at a reduced setting. And as far as the heat and defroster go, must remember to preset at night. I thought my mirrors weren't working either. I also feel this is a step back from the GMT900,s. I traded in a 2007 nbs LTZ for my new truck, and it had the features we're looking for. The dealership had heard nothing from other customers on this, but was sure that with the colder weather he will hear more.

BringTheRain403 · October 30, 2013

Defroster does not need to be turned on at night. Mine works with the remote start. There's a setting in the radio...

Sent from my SCH-I535

daveor · October 30, 2013

Defroster does not need to be turned on at night. Mine works with the remote start. There's a setting in the radio...

Sent from my SCH-I535

It seems if you have a GMC the heaters in the mirror work,, not the Chevys, got another phone call from a GM tech this morning,, basically said,,, Sorry,, that is not available on the Chevy, Guess I should have bought another GMC. There is no place in the settings in the radio to turn them on,, just the seat heaters is all. Seems there should be someone at GM smart enough to change the software in the Chevys to make things work right.

jay15892 · October 31, 2013

I have a 2014 Silverado LTZ and my heated mirrors work when the heated seats and defroster come on with the auto start. The defrost light comes on automatically when I put the key in the truck. This has only happened once on mine as it hasn't gotten too cold here yet. I am not sure if I left the defroster on from the night before though. I need to experiment with this.. Also the heated seats seem to work but it it such a low heat setting im not really sure sometimes. When it gets to -20 F in Alaska in the winter Im sure it will be easier to tell if it is working or not though!