Memory Seat Problems
Drifting
Joined: Sep 2009
Posts: 1,440
Likes: 314
From: PA
I'm also tall enough to press in the clutch with the seat in the exit position. So it sounds like all I need is a dealer installed software update and my seat will move forward when I start my car without having to hold the button in every time.
Drifting
Joined: Aug 2002
Posts: 1,519
Likes: 431
From: MI
The software may have been developed overseas but the functional specification is always written by the OEM.
This is the method used by all the OEMS I have worked with. A functional specification is delivered to the supplier who develops hardware and software for the desired behavior. Prototypes are then built and tested at the supplier for function. If they pass the supplier testing, preproduction modules are delivered to the OEM where additional in vehicle validation is done. Once this is complete the supplier is approved for production.
The bottom line is someone at GM released a poorly thought out functional specification. The supplier designed and built to it and it went into production. The customer base pushed back and the specification was modified.
This is the method used by all the OEMS I have worked with. A functional specification is delivered to the supplier who develops hardware and software for the desired behavior. Prototypes are then built and tested at the supplier for function. If they pass the supplier testing, preproduction modules are delivered to the OEM where additional in vehicle validation is done. Once this is complete the supplier is approved for production.
The bottom line is someone at GM released a poorly thought out functional specification. The supplier designed and built to it and it went into production. The customer base pushed back and the specification was modified.
Drifting
Joined: Dec 2004
Posts: 1,504
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From: Western MI
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 35,017
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From: NE South Carolina
With shorter legs I have to multitask using both hands to achieve that quick of a start!
Last edited by JerryU; Jul 13, 2016 at 10:41 AM.
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 35,017
Likes: 12,399
From: NE South Carolina
It was no doubt a poor spec! Having written software when it was easier, FORTRAN (in college,) my Ti59 (of sorts,) my Tandy and finally my IBM XT when it was relatively easy than no longer and managed folks that did after, it probably fits:“I know that you believe you understand what you think I wrote, but I'm not sure you realize that what you read is not what I meant.”
Probably why GM has never said why is wasn't just a repeat of the C6, which apparently for an automatic it is!!
Last edited by JerryU; Jul 13, 2016 at 11:06 AM.
Drifting
Joined: Aug 2002
Posts: 1,519
Likes: 431
From: MI
Same experience for me, I wrote Fortran programs (on punch cards) in college. I never used it in real life. I have had programmers working for me developing software for automotive modules, they are a special breed.
It was no doubt a poor spec! Having written software when it was easier, FORTRAN (in college,) my Ti59 (of sorts,) my Tandy and finally my IBM XT when it was relatively easy than no longer and managed folks that did after, it probably fits:
“I know that you believe you understand what you think I wrote, but I'm not sure you realize that what you read is not what I meant.”
Probably why GM has never said why is wasn't just a repeat of the C6, which apparently for an automatic it is!!
It was no doubt a poor spec! Having written software when it was easier, FORTRAN (in college,) my Ti59 (of sorts,) my Tandy and finally my IBM XT when it was relatively easy than no longer and managed folks that did after, it probably fits:“I know that you believe you understand what you think I wrote, but I'm not sure you realize that what you read is not what I meant.”
Probably why GM has never said why is wasn't just a repeat of the C6, which apparently for an automatic it is!!
Drifting
Joined: Aug 2002
Posts: 1,519
Likes: 431
From: MI
The memory positions are tied to each of the key FOBs. You have one FOB which is associated to seat position 1 and the other FOB is associated with seat position 2. Try using the other FOB, this should resolve your problem. By the way, there is no way to identify which FOB is 1 and which is 2. There is a number on the key. However the number is the number of the die used to produce the blank. If the numbers line up with the FOB memory, it is my pure chance.
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Drifting
Joined: Dec 2004
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From: Western MI
Drifting
Joined: Aug 2002
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From: MI
One additional piece of information on memory seats: On some manual transmission cars, you have to set the parking brake when you get out for the seat to operate properly. It seems as if there may be two software versions. One requires the brake to be set, the other does not. I don't know when the change was made. My early build 16 requires the brake to be set. As far as I know this does not apply to any of the automatic transmission cars.
Burning Brakes
Joined: Jun 2015
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E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 35,017
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From: NE South Carolina
1) For an M7, must leave "Auto Memory Recall Off," unless you are faster than a speeding bullet!
Or can start the car with the seat in the exit position.2) Mixed info on the "MUST Push Both Buttons at the Same Time to Set." I do it all the time while driving using only one finger! Hit Set then my Memory button. Must do within less than a second. Mine will beep and remember the setting. Just listen for the beep and you're fine.
Last edited by JerryU; Jul 13, 2016 at 12:40 PM.
Race Director
Joined: Mar 2003
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From: Dover MA
St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18-'19
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
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From: NE South Carolina
Perhaps you missed my not so subtle point! As a DD I want the car to start as fast as possible and not have to push buttons in sequence like I was driving an airplane!
Therefore:
1) If you are not tall enough to fully depress the clutch with the seat as far back as possible;
2) Want to have an easy task of reaching the unbuckled seat belt when the seat is all the way back (assuming you won't drive without the belt buckled and you don't want to try to use the Safety Belt Guide, which is designed for very short people and always falls out!), and use your right hand to accomplish that and not waste that movement pushing the start button and not have the car start;
3) And while you're inserting the belt buckle into the right side clasp you simultaneous press and hold your memory button with a finger on your right hand;
4) So when the belt is buckled the seat has now moved forward and your left foot has fully pressed the clutch and you can use your right hand (that is now finished with it's first task of buckling the belt (and wasn't wasted pushing the start button to only move the seat and then make it harder to reach the seat belt) to start the car with a one button push!
Now that is a Fred Taylor efficient use of movements!!
The software option GM devised came out over a year after I got my September 2013 built C7 M7. In that time I developed this efficient method! Since I learned it that is what I do. As a DD it works for me.
Last edited by JerryU; Aug 19, 2016 at 08:53 AM.
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
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From: NE South Carolina
I recall several specifics. I was describing to a brilliant software engineer that for marketing reasons we needed a simple demo for owners buying half million dollar CNC plasma cutting machines since they didn't understand programming and didn't want to. Our competitor had such a demo device on their control that could be plugged into a 115 volt line in a conference room and let the manager watch. I made the mistake of intimating she did not know how plant mangers think! "She assured me she knew exactly how they were thinking!" Gave that project to another engineer!
Last edited by JerryU; Jul 13, 2016 at 01:23 PM.
Drifting
Joined: Aug 2002
Posts: 1,519
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From: MI
Yes, I had a few who I could take to customer meetings. The rest worked best when you locked them in a room and slid pizza under the door.
On the functional spec, I don't understand why the spec does not say "if the seat is against the limit switch, allow forward motion only". As it functions now, the seat being against the limit switch disables the proper function of the seat memory.
I recall several specifics. I was describing to a brilliant software engineer that for marketing reasons we needed a simple demo for owners buying half million dollar CNC plasma cutting machines since they didn't understand programming and didn't want to. Our competitor had such a demo device on their control that could be plugged into a 115 volt line in a conference room and let the manager watch.
I made the mistake of intimating she did not know how plant mangers think! "She assured me she knew exactly how they were thinking!" Gave that project to another engineer!
On the functional spec, I don't understand why the spec does not say "if the seat is against the limit switch, allow forward motion only". As it functions now, the seat being against the limit switch disables the proper function of the seat memory.
I recall several specifics. I was describing to a brilliant software engineer that for marketing reasons we needed a simple demo for owners buying half million dollar CNC plasma cutting machines since they didn't understand programming and didn't want to. Our competitor had such a demo device on their control that could be plugged into a 115 volt line in a conference room and let the manager watch. I made the mistake of intimating she did not know how plant mangers think! "She assured me she knew exactly how they were thinking!" Gave that project to another engineer!
Last edited by Boiler_81; Jul 13, 2016 at 02:32 PM.
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 35,017
Likes: 12,399
From: NE South Carolina
Yes, I had a few who I could take to customer meetings. The rest worked best when you locked them in a room and slid pizza under the door.
On the functional spec, I don't understand why the spec does not say "if the seat is against the limit switch, allow forward motion only". As it functions now, the seat being against the limit switch disables the proper function of the seat memory.
On the functional spec, I don't understand why the spec does not say "if the seat is against the limit switch, allow forward motion only". As it functions now, the seat being against the limit switch disables the proper function of the seat memory.
Something was wrong when they wrote this spec. Especially for the M7 but as you say, many folks still posting theirs moves a small amount forward then stops. After someone tells them it's up against the stop switch, problem solved. If it can move forward even a tiny amount why not all the way. If set on the stop why not a warning etc.Perhaps they will fix for 2017. The excuse as to why they didn't come out with the "optional" seat software sooner than a year was they were working on the 2015.
Last edited by JerryU; Aug 19, 2016 at 08:54 AM.
Instructor
Joined: Apr 2007
Posts: 161
Likes: 35
From: Headed to the next race track
Then it has an irrationality of having the seat move forward to the set position of key FOB in your pocket when you open the door! I speculate that was designed for Superman who is faster than a speeding bullet! That is solved easily and was define on the forum when I got my September 2013 built car-you program so it doesn't return when entering. Can't remember the exact words but whatever appears it would be logical to set -is NOT, set to off as I recall!
[/I]
Thanks for the help. Setting was certainly not self apparent.
Drifting
Joined: May 2005
Posts: 1,566
Likes: 52
From: Colorado Springs CO
If you are having the issue that, when you get in and start your vette, the seat moves a smidge and then stops and doesn't go to your preferred preset... Here is the fix..
You need to reset your "exit" preset.
To do this: Move your seat all the way back to the stop, then move it forward a smidge. Then press "Mem" and quickly "exit" until you hear the 2 beeps just like setting your Mem1 or mem2. Once this is done you wont have a problem.
The issue happens when your exit preset is set all the way back to where is hits the rear stop.
Happy driving
You need to reset your "exit" preset.
To do this: Move your seat all the way back to the stop, then move it forward a smidge. Then press "Mem" and quickly "exit" until you hear the 2 beeps just like setting your Mem1 or mem2. Once this is done you wont have a problem.
The issue happens when your exit preset is set all the way back to where is hits the rear stop.
Happy driving
Team Owner
Joined: Aug 2000
Posts: 24,110
Likes: 1,331
From: Spring Texas
The memory positions are tied to each of the key FOBs. You have one FOB which is associated to seat position 1 and the other FOB is associated with seat position 2. Try using the other FOB, this should resolve your problem. By the way, there is no way to identify which FOB is 1 and which is 2. There is a number on the key. However the number is the number of the die used to produce the blank. If the numbers line up with the FOB memory, it is my pure chance.