Help with memory seat

E

Etid

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Ontario
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Corvette 2019 Stingr
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I have a 2019 Stingray 2LT.
The exit function works just fine. Upon reentering the car and starting the engine the seat(driver) does not automatically return to my position 1 and even holding the position 1 does nothing I then readjust the seat to my liking and reset position 1 and i get the 2 beeps. I can stay in the car and manually change the seat position and the press position 1 and the seat will go to it's preset position. If I then get out of the car the exit position activates and when I re entering the car and start it the seat does not automatically return to my set position and will not move when I press position 1. The seat can be adjusted using the buttons on the side so I am at a loss trying to figure this out, any suggestions will be a great help,
Thanks Etid
 
Etid said:
How do i reset the car. Just disconnect the battery?
Click to expand...
I only know the C8, but if it's the same you disconnect both leads on the battery and short them together. Well, you really only need to disconnect the positive leads.
 
Etid said:
How do i reset the car. Just disconnect the battery?
Click to expand...
Found this…hope it helps. :)

To reset the ECM on a 2019 Corvette, the most common and effective method is to disconnect the negative battery terminal for about 15 to 30 minutes. This allows the ECM’s capacitors to fully discharge, clearing the adaptive memory and resetting the system. After reconnecting the battery, start the engine and let it idle for a few minutes to allow the ECM to relearn idle and other parameters. A short test drive afterward helps the ECM adapt to current driving conditions.
Here is a clear step-by-step summary:
• Turn off the vehicle and engage the parking brake.
• Open the hood and locate the battery.
• Using a wrench, disconnect the negative (black) battery terminal.
• Wait for about 15 to 30 minutes. This ensures the ECM memory clears.
• Reconnect the negative battery terminal securely.
• Start the Corvette and let it idle for about 5 minutes.
• Take the car for a short drive (~10 miles) to allow the ECM to relearn.
• Check that the check engine light is off and no error codes remain.
Alternatively, some users reset the ECM by removing or pulling the ECM fuse (usually located in the fuse box near the battery) for a few minutes, but disconnecting the battery is simpler and widely recommended.
Keep in mind that resetting the ECM will also clear any stored trouble codes and may reset other vehicle electronic settings, so you may need to reset radio presets, clock, or other settings afterward.
If issues persist after the reset, diagnostics with a scan tool or professional assistance may be needed.

The relearning process after an ECM reset involves the engine control module adapting to your driving style and current vehicle conditions. When the ECM is reset, it loses all learned data and returns to default settings, meaning fuel injection, ignition timing, air-fuel mixture, and emissions control must be recalibrated based on new inputs from sensors and driving behavior.
Typically, the ECM begins relearning immediately but may require about 5 to 10 minutes of engine idling and 15-30 minutes of normal driving to start adjusting key parameters like idle speed, fuel injection, and ignition timing. To fully recalibrate optimal performance, it can take anywhere from 50 to 100 miles of varied driving—including city, highway, and some acceleration/deceleration—to expose the ECM to a wide range of conditions.
Key aspects and tips for the relearning process:
• Initial idle period: After reset, allowing the engine to idle for a few minutes helps the ECM adjust basic idle and emissions parameters.
• Drive cycle: A combination of idling, accelerating, cruising, and decelerating during normal driving is necessary for full relearning.
• Driving conditions: Highway driving at steady speeds accelerates relearning for fuel efficiency and ignition timing, while city driving helps with idle and throttle response adjustments.
• Performance demands: Exposing the vehicle to higher engine loads (accelerations, hills) speeds up adaptation.
• Sensor condition: Proper functioning of sensors like oxygen and throttle position sensors is crucial for accurate relearning.
• Potential issues: If ECM does not relearn properly, symptoms such as rough idling, hesitation, or check engine light may appear, indicating further cleaning or repairs might be needed.
Specific to the Corvette or similar vehicles, letting the car idle for about 5 minutes after reconnecting the battery and taking it for a short drive (~10 miles or more) is recommended to ensure the ECM can successfully relearn.
In summary, the relearning process requires a blend of engine idle time, varied driving conditions, and proper sensor function, usually completed within about an hour of driving but potentially up to 100 miles for complete optimization
 
The C7 driver seat back has a sensor built into it. When the seat travels too far back the sensor is activated and the seat will not auto move to preset positions. The fix is to reset the exit position so that it is not all the way back. Adjust the rear travel to about a 1/2 inch from the extreme back position. Then set that position as the new exit setting. You should be good to go after that.

Happened to me and this forum had the solution somewhere back in 2018. 😃
 
Etid said:
I have a 2019 Stingray 2LT.
The exit function works just fine. Upon reentering the car and starting the engine the seat(driver) does not automatically return to my position 1 and even holding the position 1 does nothing I then readjust the seat to my liking and reset position 1 and i get the 2 beeps. I can stay in the car and manually change the seat position and the press position 1 and the seat will go to it's preset position. If I then get out of the car the exit position activates and when I re entering the car and start it the seat does not automatically return to my set position and will not move when I press position 1. The seat can be adjusted using the buttons on the side so I am at a loss trying to figure this out, any suggestions will be a great help,
Thanks Etid
Click to expand...
My 2019 GS had a similar issue and it turned out to be a sensor in the power seat circuit. It took three trips to the dealer to finally diagnose the problem. I think there may have eventually been a service bulletin on it.
 
1st Vette said:
Set mine the day I picked it up and haven’t adjusted once since then. All the way back. I’m only 6ft 1 .
Click to expand...
As long as the C7 seat back does not touch the wall behind it, you are good to go. In my case the issue was caused by me setting the recline too far back in the exit memory position.
 
Vanguard2001 said:
As long as the C7 seat back does not touch the wall behind it, you are good to go. In my case the issue was caused by me setting the recline too far back in the exit memory position.
Click to expand...
I think I recall someone mentioning that before. Perhaps you , can’t recall. One of those things not in the manual perhaps. Mine does not move when getting in or out which is good. Be different if I was shorter as they are a bit awkward to get in and out of for some folks. I don’t have any problems. Yet , lol.
 
1st Vette said:
Found this…hope it helps. :)

To reset the ECM on a 2019 Corvette, the most common and effective method is to disconnect the negative battery terminal for about 15 to 30 minutes. This allows the ECM’s capacitors to fully discharge, clearing the adaptive memory and resetting the system. After reconnecting the battery, start the engine and let it idle for a few minutes to allow the ECM to relearn idle and other parameters. A short test drive afterward helps the ECM adapt to current driving conditions.
Here is a clear step-by-step summary:
• Turn off the vehicle and engage the parking brake.
• Open the hood and locate the battery.
• Using a wrench, disconnect the negative (black) battery terminal.
• Wait for about 15 to 30 minutes. This ensures the ECM memory clears.
• Reconnect the negative battery terminal securely.
• Start the Corvette and let it idle for about 5 minutes.
• Take the car for a short drive (~10 miles) to allow the ECM to relearn.
• Check that the check engine light is off and no error codes remain.
Alternatively, some users reset the ECM by removing or pulling the ECM fuse (usually located in the fuse box near the battery) for a few minutes, but disconnecting the battery is simpler and widely recommended.
Keep in mind that resetting the ECM will also clear any stored trouble codes and may reset other vehicle electronic settings, so you may need to reset radio presets, clock, or other settings afterward.
If issues persist after the reset, diagnostics with a scan tool or professional assistance may be needed.

The relearning process after an ECM reset involves the engine control module adapting to your driving style and current vehicle conditions. When the ECM is reset, it loses all learned data and returns to default settings, meaning fuel injection, ignition timing, air-fuel mixture, and emissions control must be recalibrated based on new inputs from sensors and driving behavior.
Typically, the ECM begins relearning immediately but may require about 5 to 10 minutes of engine idling and 15-30 minutes of normal driving to start adjusting key parameters like idle speed, fuel injection, and ignition timing. To fully recalibrate optimal performance, it can take anywhere from 50 to 100 miles of varied driving—including city, highway, and some acceleration/deceleration—to expose the ECM to a wide range of conditions.
Key aspects and tips for the relearning process:
• Initial idle period: After reset, allowing the engine to idle for a few minutes helps the ECM adjust basic idle and emissions parameters.
• Drive cycle: A combination of idling, accelerating, cruising, and decelerating during normal driving is necessary for full relearning.
• Driving conditions: Highway driving at steady speeds accelerates relearning for fuel efficiency and ignition timing, while city driving helps with idle and throttle response adjustments.
• Performance demands: Exposing the vehicle to higher engine loads (accelerations, hills) speeds up adaptation.
• Sensor condition: Proper functioning of sensors like oxygen and throttle position sensors is crucial for accurate relearning.
• Potential issues: If ECM does not relearn properly, symptoms such as rough idling, hesitation, or check engine light may appear, indicating further cleaning or repairs might be needed.
Specific to the Corvette or similar vehicles, letting the car idle for about 5 minutes after reconnecting the battery and taking it for a short drive (~10 miles or more) is recommended to ensure the ECM can successfully relearn.
In summary, the relearning process requires a blend of engine idle time, varied driving conditions, and proper sensor function, usually completed within about an hour of driving but potentially up to 100 miles for complete optimization
Click to expand...

GOOD LUCK FINDING THE BATTERY UNDER THE HOOD !!!!
 
drchewchew said:
GOOD LUCK FINDING THE BATTERY UNDER THE HOOD !!!!
Click to expand...
I did say I “ hoped “ it would help ;)…….. suppose that you could consider the trunk lid a hood in a way . This is an example of the chance that AI may not be perfectly accurate about some things. Always double check. Did you see anything else in that info that was inaccurate ? Personally I’m not very familiar with that MY .
 
1st Vette said:
I did say I “ hoped “ it would help ;)…….. suppose that you could consider the trunk lid a hood in a way . This is an example of the chance that AI may not be perfectly accurate about some things. Always double check. Did you see anything else in that info that was inaccurate ? Personally I’m not very familiar with that MY .
Click to expand...
lol.... That would require me actually reading that.... I will add that unless you have read the manual, you're not even going to find the battery. ;)
 
Vanguard2001 said:
The C7 driver seat back has a sensor built into it. When the seat travels too far back the sensor is activated and the seat will not auto move to preset positions. The fix is to reset the exit position so that it is not all the way back. Adjust the rear travel to about a 1/2 inch from the extreme back position. Then set that position as the new exit setting. You should be good to go after that.

Happened to me and this forum had the solution somewhere back in 2018. 😃
Click to expand...
I did as suggested and it worked fine thanks for your help.
 

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