key fob transmitter faulty?

Mafo3140 · September 19, 2020

I have a 20 Silverado bought June 26th. No tinted windows and I’ve had the remote stop working 3 times now. Dealer has no idea what to do........ thankfully it’s a lease....... I will never get another GM after this, and my uncle worked there for 33 yrs.... very disappointing. I’ve always been a GM guy

Jriola83 · November 20, 2020

2021 Silverado 2500... Had all windows tinted yesterday and everything worked as normal UNTIL today.. I had the windshield tinted and about an hour later, neither key fobs worked. Had to put the key in the cup holder spot to start the truck. Just now (6hrs later) my key fob is working intermittently. After reading this thread, it has to be related to the tint process. Fingers crossed

Desmo · December 15, 2020

Same issue here, just had windows tinted, including the windshield. But my gauges, radio and turn signals stopped working too.

Jgr2116 · January 5, 2021

On 12/14/2020 at 11:30 PM, Desmo said:

Same issue here, just had windows tinted, including the windshield. But my gauges, radio and turn signals stopped working too.

Have you had them come back on yet? At 24 hours currently after getting windshield tinted and they have yet to start working again. Neither fob works as well as the tire sensors stopped working.

mandrewbot3k · February 6, 2021

I'm having similar issues, additionally with the "Service Steering Column Lock" DIC message. In reading this thread I don't believe it's the tint, I think it has to do with having the doors open for a prolonged period of time. I had it open, and then tried putting it in ACC after 20 minutes or so. I was working on installing my opt-7 interior LED lighting. I'd expect the tinters to have the doors open prolonged period of time without the key in it as well, so must be a fail safe.

I thought maybe it was from me poking around in the fuse box, but now there seems to be a common theme. I think the anti-theft system just has to wait to be reset. Not sure if theres a faster way to reset it. My key 'works' to unlock the doors, but only by button. Not passively, and i have to put the key under the center seat/console to start it which is real annoying.

L8T · February 7, 2021

I’ve changed the battery in one of my fobs twice and it’s dead again. Only seem to get a month out of it before It dies. I figure it’s a bad fob. The dealer changed the battery once under warranty so hopefully they just replace it. They changed the battery in both at the same time as the battery low message was coming up in the other one so hopefully this isn’t a chronic issue. So far the other one has seemed to hold voltage.

Edited February 7, 2021 by L8T

L8T · March 1, 2021

Dealer replaced both my fobs. Will see how long these ones last.

MyDuramax · April 17, 2021

This is bullsh*t that it’s happening! Same damn thing happened to me and it was 11pm luckily on a Friday night but alarm going off and no response. For the amount we paid for these vehicles they better fix this sh*t.

Bjamin14 · May 11, 2021

On 5/18/2020 at 10:41 AM, FirstAscent said:

Thanks, good info. So doesn’t sound like it was one of the antennas then.

I still think it’s somehow related, just not sure how exactly.

Could be a coincidence of course but the only two times was immediately after getting tinted. First time got all windows tinted, 2nd time was just Re-tint of windshield which is why I suspected windshield area.

Currently juat had my windshield tinted 2020 2500hd and now my remote fob no longer detected amd tire monitor system service light is now on, definitely related to windshield tinting

FirstAscent · May 12, 2021

1 hour ago, Bjamin14 said:

Currently juat had my windshield tinted 2020 2500hd and now my remote fob no longer detected amd tire monitor system service light is now on, definitely related to windshield tinting

yeah it's quite odd, and a little annoying. But just know it'll be all good by tomorrow or the next day at the latest. For what it's worth, I haven't had any fob issues since, only for that first 24 hours or so after having it tinted.

Bjamin14 · May 12, 2021

On 11/19/2020 at 8:03 PM, Jriola83 said:

2021 Silverado 2500... Had all windows tinted yesterday and everything worked as normal UNTIL today.. I had the windshield tinted and about an hour later, neither key fobs worked. Had to put the key in the cup holder spot to start the truck. Just now (6hrs later) my key fob is working intermittently. After reading this thread, it has to be related to the tint process. Fingers crossed

Did yours get all back to normal? I'm in the waiting game now

Bjamin14 · May 12, 2021

2 hours ago, FirstAscent said:

yeah it's quite odd, and a little annoying. But just know it'll be all good by tomorrow or the next day at the latest. For what it's worth, I haven't had any fob issues since, only for that first 24 hours or so after having it tinted.

I'm going to hope your right and all is well tomorrow. At the moment as nice as the tint is I feel like I made a mistake in getting it. I like hearing other have had this and seen it fixed. I just tried to reprogram my smart remotes and still nothing, only on hour 7 at the moment.

Desmo · May 12, 2021

On 1/5/2021 at 7:10 AM, Jgr2116 said:

Have you had them come back on yet? At 24 hours currently after getting windshield tinted and they have yet to start working again. Neither fob works as well as the tire sensors stopped working.

Back when this happened to me, I took it to the dealership. It sat there for 3 days until they told me the problem was related to my aftermarket power running boards plugged into the OBD2. Which is total BS, because when I picked it up the running boards were still plugged in and everything was working fine. It just needed to sit and dry out for a few days. Was cold weather here back when I had the windshield tinted.

long story short: It just needs to dry out for a day or two, parked in the sun preferably.

p.s. sorry for the late response.

Edited May 12, 2021 by Desmo

FirstAscent · May 14, 2021

On 5/11/2021 at 7:17 PM, Bjamin14 said:

I'm going to hope your right and all is well tomorrow. At the moment as nice as the tint is I feel like I made a mistake in getting it. I like hearing other have had this and seen it fixed. I just tried to reprogram my smart remotes and still nothing, only on hour 7 at the moment.

Are you back to normal now?

John FX · May 15, 2021

So I’ve now had something similar happen. 2021 Denali 3500, we parked at a campsite yesterday and everything was fine. Today neither of our fobs work for remote lock/unlock, but we can use the physical handle buttons on the door, and keyless start does still work with the fob in my pocket. It’s dry and sunny today, and we did not just get any windows tinted!

I like the theory that it has to do with the doors being open for a long time. It’s possible I left the doors open last night for a long time while I was unhitching the RV. In any case, I’ll update whether it fixes itself or if I need to take it to a dealer. I just wanted to add that this problem seems to occur without tinting