Any way to key alike? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

XK4 · 01-20-2017, 08:03 AM

We've got 3 Subarus, all with factory push button start. Does anyone know if it's possible to "key" them alike so that my fob works on all 3 cars and so would my wife's?

All three pairs fobs look identical. I currently use different colored silicon sleeves to tell them apart. I'd love to be able to just be able to use one fob for all three. My dealer doesn't think it can be done.

Thanks

jasonojordan · 01-20-2017, 08:36 AM

Even if it could be done why would the dealer want to admit that is possible. What keeps you from then taking any fob and making it work with any subaru anywhere...so yea no this is not going to work.

8RZ · 01-20-2017, 08:55 AM

Wow, you are lazy lol.

Anthony · 01-20-2017, 09:30 AM

Why would you want one button to unlock all the doors all at once? Or do you keep them all parked very far apart at all times?

Ragin Gti · 01-20-2017, 10:30 AM

The dealer is correct, can't do it.

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Tcoat · 01-20-2017, 10:37 AM

I disagree that it can't be done. They can change the coding if keys are lost so they can change it for that. It would cost way more than the convenience would warrant though.

jasonojordan · 01-20-2017, 11:03 AM

Quote:

Originally Posted by Tcoat

I disagree that it can't be done. They can change the coding if keys are lost so they can change it for that. It would cost way more than the convenience would warrant though.

I don't disagree that It can't be done but I doubt there is any dealer out there that would take that liability.

Ragin Gti · 01-20-2017, 11:05 AM

Any key can be programmed to any car, it cannot be programmed to more than one. We had a customer request the same thing and it couldn't be done, we tried.

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turbosupra94 · 01-20-2017, 11:52 AM

Whatever the key is programmed to would have to have the same codes which on the twins I think the keys have to be programmed with the ecu and cluster which will never have the same code (I would think) as another ecu and cluster but it could be possible. Just extremely rare IF it was possible. There are articles out there about Honda's having the same key since there are only so many keys and codes to program.

https://www.aol.com/article/2015/07/...twin/21206195/

Dadhawk · 01-20-2017, 12:34 PM

Quote:

Originally Posted by turbosupra94

... There are articles out there about Honda's having the same key since there are only so many keys and codes to program.

Since there isn't an infinite set of combinations this is going to obviously be true, just most people don't think it through.

I had never thought about it until one day....

Way back in the day I had a '77 green Honda Civic CVCC Wagon. At the end of a visit to an amusement park one day I walked back out to the parking lot found my car, got in and started it. When I reached down to turn on the radio I realized my newly installed Pioneer headunit had been replaced with the original OEM radio.

That's when I realized I wasn't in my car!

Had it been two weeks earlier (before the radio was installed), I would have driven off with the car.

jasonojordan · 01-20-2017, 12:54 PM

Imagine explaining that one to the officer.

Quote:

Originally Posted by Dadhawk

Since there isn't an infinite set of combinations this is going to obviously be true, just most people don't think it through.

I had never thought about it until one day....

Way back in the day I had a '77 green Honda Civic CVCC Wagon. At the end of a visit to an amusement park one day I walked back out to the parking lot found my car, got in and started it. When I reached down to turn on the radio I realized my newly installed Pioneer headunit had been replaced with the original OEM radio.

That's when I realized I wasn't in my car!

Had it been two weeks earlier (before the radio was installed), I would have driven off with the car.

XK4 · 01-20-2017, 04:55 PM

I'll take the above as a "no". I was just hoping that our forum members might know something my dealer didn't. (Not necessarily a silly hope.)

Thanks everybody who took the time to read and reply.

XK4

Anthony · 01-20-2017, 05:28 PM

Quote:

Originally Posted by Dadhawk

Since there isn't an infinite set of combinations this is going to obviously be true, just most people don't think it through.

I had never thought about it until one day....

Way back in the day I had a '77 green Honda Civic CVCC Wagon. At the end of a visit to an amusement park one day I walked back out to the parking lot found my car, got in and started it. When I reached down to turn on the radio I realized my newly installed Pioneer headunit had been replaced with the original OEM radio.

That's when I realized I wasn't in my car!

Had it been two weeks earlier (before the radio was installed), I would have driven off with the car.

wat

ichitaka05 · 01-20-2017, 05:40 PM

Quote:

Originally Posted by Tcoat

I disagree that it can't be done. They can change the coding if keys are lost so they can change it for that. It would cost way more than the convenience would warrant though.

iirc key fob is the one programmed and not the car. Key fob is blank, while car has the code and key fob receive and programed only 1 code.

So on this example:
Car 1 code = 123
Car 2 code = 456
Car 3 code = 789

Key fob can only program 1 of those code: 123, 456 or 789.

Hope that make sense

01-20-2017, 08:03 AM	#1
XK4 Member Join Date: Jan 2017 Drives: 2017 BRZ, Pure Red with PP Location: East Central Illinois Posts: 33 Thanks: 10 Thanked 18 Times in 14 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Any way to key alike? We've got 3 Subarus, all with factory push button start. Does anyone know if it's possible to "key" them alike so that my fob works on all 3 cars and so would my wife's? All three pairs fobs look identical. I currently use different colored silicon sleeves to tell them apart. I'd love to be able to just be able to use one fob for all three. My dealer doesn't think it can be done. Thanks

01-20-2017, 09:30 AM	#4
Anthony Weight Nazi Join Date: Aug 2012 Drives: 13 FRS -399lb, 11 335is, 05 Tiburon Location: Biloxi, MS / Gulf Coast 86 Posts: 3,702 Thanks: 5,009 Thanked 3,714 Times in 1,765 Posts Mentioned: 150 Post(s) Tagged: 4 Thread(s)	Why would you want one button to unlock all the doors all at once? Or do you keep them all parked very far apart at all times? __________________ Build Thread \| The Venus Project \| Any car which holds together for a whole race is too heavy.

01-20-2017, 10:37 AM	#6
Tcoat Senior Member Join Date: Jul 2014 Drives: 2020 Hakone Location: London, Ont Posts: 69,841 Thanks: 61,656 Thanked 108,295 Times in 46,456 Posts Mentioned: 2499 Post(s) Tagged: 50 Thread(s)	I disagree that it can't be done. They can change the coding if keys are lost so they can change it for that. It would cost way more than the convenience would warrant though. __________________ Racecar spelled backwards is Racecar, because Racecar.

01-20-2017, 04:55 PM	#12
XK4 Member Join Date: Jan 2017 Drives: 2017 BRZ, Pure Red with PP Location: East Central Illinois Posts: 33 Thanks: 10 Thanked 18 Times in 14 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I'll take it as a "no". I'll take the above as a "no". I was just hoping that our forum members might know something my dealer didn't. (Not necessarily a silly hope.) Thanks everybody who took the time to read and reply. XK4

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01-20-2017, 08:36 AM	#2
jasonojordan Senior Member Join Date: Jul 2013 Drives: 2013 satin white brz limited Location: Cottage Grove MN Posts: 1,049 Thanks: 162 Thanked 511 Times in 326 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	Even if it could be done why would the dealer want to admit that is possible. What keeps you from then taking any fob and making it work with any subaru anywhere...so yea no this is not going to work.

01-20-2017, 10:30 AM	#5
Ragin Gti Member Join Date: Jan 2017 Drives: '15 Subaru BRZ Location: Pittsburgh Posts: 93 Thanks: 8 Thanked 58 Times in 35 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	The dealer is correct, can't do it. Sent from my iPhone using Tapatalk

01-20-2017, 11:05 AM	#8
Ragin Gti Member Join Date: Jan 2017 Drives: '15 Subaru BRZ Location: Pittsburgh Posts: 93 Thanks: 8 Thanked 58 Times in 35 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Any key can be programmed to any car, it cannot be programmed to more than one. We had a customer request the same thing and it couldn't be done, we tried. Sent from my iPhone using Tapatalk

01-20-2017, 11:52 AM	#9
turbosupra94 Senior Member Join Date: Dec 2012 Drives: 2015 WRB Series.Blue Location: LI NY Posts: 114 Thanks: 36 Thanked 32 Times in 21 Posts Mentioned: 0 Post(s) Tagged: 1 Thread(s)	Whatever the key is programmed to would have to have the same codes which on the twins I think the keys have to be programmed with the ecu and cluster which will never have the same code (I would think) as another ecu and cluster but it could be possible. Just extremely rare IF it was possible. There are articles out there about Honda's having the same key since there are only so many keys and codes to program. https://www.aol.com/article/2015/07/...twin/21206195/

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