Key fob
Thread Starter
Burning Brakes
Joined: Jun 2022
Posts: 750
Likes: 255
From: Florida
Key fob
I know this has been discussed 100 times and I tried searching the forum but the number of posts overwhelmed me. Has anyone found an aftermarket key fob that actually will allow the hatch to open with either the fob or the button above the license plate? I ordered one on ebay and the FCC id matches mine. It programmed fine but the rear hatch will not function unless I use the OEM fob I got with the car or the button next to the gas door release.
Drifting
Joined: Nov 2004
Posts: 1,649
Likes: 268
From: Cape Canaveral Florida
St. Jude Donor '07 thru '26
NCM Lifetime Member
The one (later style) that I bought from eBay works with the hatch button above the license plate but the button on the fob does not open it. Both doors work fine and it starts the car. I would send you a link but eBay says the vendor is no longer there. It looks just like the 2008+ fob minus the emblem on the back (does not even have the indent for a label, just a smooth back). Same FCC ID as stock.
Burning Brakes
Joined: Aug 2014
Posts: 1,240
Likes: 258
From: Tampa FL
As I understand Fobs: 4 fobs total at a time
G.M. provides 2 and they operate the functions of the car, 1- 2
3 - 4 Will not operate some functions.
Fob replacements
For GM fobs you must program them fobs 1-2
That says nothing about aftermarket fobs
Still have to be 1- 2 to operate all car functions
G.M. provides 2 and they operate the functions of the car, 1- 2
3 - 4 Will not operate some functions.
Fob replacements
For GM fobs you must program them fobs 1-2
That says nothing about aftermarket fobs
Still have to be 1- 2 to operate all car functions
Thread Starter
Burning Brakes
Joined: Jun 2022
Posts: 750
Likes: 255
From: Florida
As I understand Fobs: 4 fobs total at a time
G.M. provides 2 and they operate the functions of the car, 1- 2
3 - 4 Will not operate some functions.
Fob replacements
For GM fobs you must program them fobs 1-2
That says nothing about aftermarket fobs
Still have to be 1- 2 to operate all car functions
G.M. provides 2 and they operate the functions of the car, 1- 2
3 - 4 Will not operate some functions.
Fob replacements
For GM fobs you must program them fobs 1-2
That says nothing about aftermarket fobs
Still have to be 1- 2 to operate all car functions
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,589
Likes: 4,055
From: Cape Coral, Florida
I know this has been discussed 100 times and I tried searching the forum but the number of posts overwhelmed me. Has anyone found an aftermarket key fob that actually will allow the hatch to open with either the fob or the button above the license plate? I ordered one on ebay and the FCC id matches mine. It programmed fine but the rear hatch will not function unless I use the OEM fob I got with the car or the button next to the gas door release.
Your BIG mistake was ordering one from Ebay !!...I'd seek out a locksmith or store in your area that deals with them...a $20.00 FOB most likely will be junk !!
Melting Slicks
Joined: Oct 2022
Posts: 3,339
Likes: 1,934
From: Ulta Vista, AZ
I just ordered an OEM fob the other day and wanted to avoid a cheap replacement due to how critical these fobs are to the cars.
Any time you have a push button start, it’s a smart choice to opt for an OEM fob. A hatch not opening is the least of your worries
Any time you have a push button start, it’s a smart choice to opt for an OEM fob. A hatch not opening is the least of your worries
Drifting
Joined: Nov 2004
Posts: 1,649
Likes: 268
From: Cape Canaveral Florida
St. Jude Donor '07 thru '26
NCM Lifetime Member
FOBs 3 and 4 are just as functional as 1 and 2 except for memory functions within the car (which are linked to 1 and 2 only). They should open all the doors and hatch. Looking at the circuit boards and cases from the $20 fobs I am going to guess they were built in the same factory as the OEM ones. But there is something, obviously, different when it comes to the hatch button. Very odd. DId any C6 have remote start? My 2007 does not.
Thread Starter
Burning Brakes
Joined: Jun 2022
Posts: 750
Likes: 255
From: Florida
FOBs 3 and 4 are just as functional as 1 and 2 except for memory functions within the car (which are linked to 1 and 2 only). They should open all the doors and hatch. Looking at the circuit boards and cases from the $20 fobs I am going to guess they were built in the same factory as the OEM ones. But there is something, obviously, different when it comes to the hatch button. Very odd. DId any C6 have remote start? My 2007 does not.
Guess I'm spending $150 on a GM key fob
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Melting Slicks
Joined: Oct 2022
Posts: 3,339
Likes: 1,934
From: Ulta Vista, AZ
Burning Brakes
Joined: Sep 2010
Posts: 935
Likes: 384
Car Key Fob Replacement For 2009 2010 2011 2012 2013 2014 Cadillac CTS STS Smart Remote FCCID:M3N5WY7777A ;by AUTO KEY MAX (1)
Visit the AUTO KEY MAX Store
I bought two of these on Amazon to use as fobs 3 and 4 on my 2009. The hatch function work as expected with both of them and the buttons in the car.
Visit the AUTO KEY MAX Store
I bought two of these on Amazon to use as fobs 3 and 4 on my 2009. The hatch function work as expected with both of them and the buttons in the car.
Racer
Joined: May 2024
Posts: 404
Likes: 310
I know this has been discussed 100 times and I tried searching the forum but the number of posts overwhelmed me. Has anyone found an aftermarket key fob that actually will allow the hatch to open with either the fob or the button above the license plate? I ordered one on ebay and the FCC id matches mine. It programmed fine but the rear hatch will not function unless I use the OEM fob I got with the car or the button next to the gas door release.
Thread Starter
Burning Brakes
Joined: Jun 2022
Posts: 750
Likes: 255
From: Florida
I called my 3 closest dealers and if I order it under our company it's $153 at one, $185 ay another and $202 at the third. Online at GM Part Direct it's like $129 plus $13 shipping. Only plus I see to buying at the dealer is they said if I bring the original emergency key and the blank they will cut it free.
Safety Car
Joined: Aug 2017
Posts: 4,927
Likes: 2,334
From: Etobicoke (Toronto) Ontario
As I understand Fobs: 4 fobs total at a time
G.M. provides 2 and they operate the functions of the car, 1- 2
3 - 4 Will not operate some functions.
Fob replacements
For GM fobs you must program them fobs 1-2
That says nothing about aftermarket fobs
Still have to be 1- 2 to operate all car functions
G.M. provides 2 and they operate the functions of the car, 1- 2
3 - 4 Will not operate some functions.
Fob replacements
For GM fobs you must program them fobs 1-2
That says nothing about aftermarket fobs
Still have to be 1- 2 to operate all car functions
This the clone that I bought and programmed in Aug 2021, and as I said, it works fine in all respects. However, I can't guarantee that the manufacturer has changed anything, or that the one above still works. Caveat emptor.
