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Key FOB and C7 miscommunication?

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Old Jun 6, 2023 | 06:23 PM
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Default Key FOB and C7 miscommunication?

When I received my car off the transporter it only came with one key. That key was held together with scotch tape. There is no other key. Thanks to TIM LALLY Chevrolet for that.
I bought another key fob and blank trunk key.
Using the recommended method for programming the new key several problems came up:

1) FOB that came with car locks and unlocks and the car will start. Insert the trunk key and turn 5 times and the message on the screen is "Remote learning in progress Please wait" FOB in car with me and it never got es to "Ready for Remote#."
2) I am afraid to go on without confirming that the slot is working. Although the FOB does what it is supposed to do I also have never seen the remote be indentified as "You are driver number 1" or 2 on the DIC on entry.
3) If I just go ahead and do the add another remote I get the same "Remote learning in progress Please wait" and not the "Ready for remote#."

Elmer?
Anyone?

Last edited by MBrianB; Jun 6, 2023 at 07:14 PM.
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Old Jun 7, 2023 | 07:43 AM
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OK, well you should use the long program so you can use both FOBs as #1 & #2 with memory. It takes quite a few minutes to step through the FOB programming procedure with 10 minute waits between each step.

Long program is Steps 1, 2, 8 and then the rest.

Elmer
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Old Jun 7, 2023 | 09:20 AM
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Thanks Elmer.
When I go to #8 the DIC is supposed to show "Press Engine Start/Stop Button to Learn"
But mine goes to "Remote learning in progress Please wait"
I never get to the
"Press Engine Start/Stop Button to Learn" phase to start the process.
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Old Jun 7, 2023 | 10:06 AM
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YOu don't have any FOBs near the car do you? At least 10' away from any portion of the car. There are sensors at the outside of the doors and the license plate area.

This isn't a Canada car is it?
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Old Jun 7, 2023 | 10:25 AM
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I have tried the procedure with the fob in the car, away from the car, both fobs in the car everyday I can think of and I get the same message that it is in the learning process each time.

The car was shipped from Ohio, how do I know if it is a Canadian car?

I think that the fob that came with the car is defective or that the DIC needs to be reset as it seems to be in a programming loop that will not resolve.
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Old Jun 7, 2023 | 12:56 PM
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Verify your fob part numbers. Also fobs get flaky when battery voltage drops to around 3.0 volts - a new battery is more like 3.29 volts.




I had quite a bit of frustration until I remembered that 2014/15 fobs are not compatible with 2016+ model years. I sold my spare 2014 fob and bought the correct 2016+ for my 2019.

Once you get the fob working, there is an eBay site that will cut a metal key from pictures or the key code.

Ron
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Old Jun 7, 2023 | 12:58 PM
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Where are the numbers and what should they be for a 2019 GS M7?
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Old Jun 7, 2023 | 01:08 PM
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The number is inside the case. An M7 coupe takes the 4 button coupe manual, w/o remote start.

M7 convertible takes 5 button convertible w/o remote start.

This is the 23465950 for my C7 manual coupe. The part number is here:


FOB PART NUMBER. MANF 24TH WEEK OF 2019. THIS IS FOR M7 COUPE




GL

Ron
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Old Jun 7, 2023 | 02:16 PM
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That is the number on both of my fob’s.
I removed the battery from the original working fob and put it in the slot on the column and the car runs so the slot must be working. At least that is out of the way.
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Old Jun 7, 2023 | 03:19 PM
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Correct.

Slot is good

1 FOB is good
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Old Nov 4, 2025 | 08:33 AM
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Originally Posted by RonC7
Verify your fob part numbers. Also fobs get flaky when battery voltage drops to around 3.0 volts - a new battery is more like 3.29 volts.




I had quite a bit of frustration until I remembered that 2014/15 fobs are not compatible with 2016+ model years. I sold my spare 2014 fob and bought the correct 2016+ for my 2019.

Once you get the fob working, there is an eBay site that will cut a metal key from pictures or the key code.

Ron

I'm also having issues, if anybody has any ideas I would appreciate it. I'll keep my story brief...

I just bought a 2015 manual z51 stingray. The dealer only had one fob. I bought a NEW one from locksmithkeyless.com. The brand of the fob is ILCO but it is brand new.

I'm also stuck at the learning phase. I've tried with the good fob in the car and also away from the car. With the good fob in the car it will give the message "waiting for remote 3". Won't ever program it/recognize it. If I try with the good fob away from the car, I get "remote pairing in progress" or however it words it. But again it never accepts the fob.

Regarding the chart with part numbers, I find it interesting that it says 22779879 is the part number for the 2014-2015 manual coupes without remote start but my fob that I received with the car is part number 23465950 and it works fine. So obviously the replacement I bought is the identical match to my fob, not what the chart says.

As others have said, I'm weary of doing the long method and wiping all linked fobs. I have one that works, so that seems like a risk. I'm curious the odds of the good/known fob programming just fine in that process or the odds of it being turned into a paperweight?

Anybody have any new ideas? Thanks in advance.
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Old Nov 4, 2025 | 08:57 AM
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All I can tell you is that my 2019 GS M7 came with 23465950. I tried to pair a fob from my 2014 Z51 M7 22779879 and it was not recognized. I sold the 9879, bought a 5950 and had no issues.

The 2014/15 and 2016/19 are on different radio frequencies... See post #8 - the 5950 is labelled 434 mhz and measures 433.6 with my inexpensive RF meter.

If a 5950 works on a 2014/15 some of the receiver parts on the car have been replaced.

Ron

Last edited by RonC7; Nov 4, 2025 at 09:18 AM.
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Old Nov 4, 2025 | 09:48 AM
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Thanks Ron. I'll keep looking into this as time allows.
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Old Nov 4, 2025 | 08:56 PM
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Here is my thought. Buy one from your local dealership and make an appointment for a full wipe. Ask them how many hours it takes and not some stupid number for the bill. Say you make the appointment for noon, go to the dealer's lot on the day at 8am. Try to wipe it and DIY. If successful, cancel the appointment. If you brick it, they can push it in. It took about an hour or so to do. The tech did the same thing but the first time, it didn't take for whatever reason. Looked at the video and he didn't do anything different the 2nd time.
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