Hey All,
So after getting my car back from the shop (replaced the master cylinder) on the drive home I noticed the trans shifting much firmer than before, and also downshifting quickly and firmly during braking, it was pretty herky-jerky. I thought about the possibility of it being an issue stemming from the adaptive learning cycle. When my mechanic took the car out to test the brakes, he obviously had to drive it aggressively and test the brakes aggressively. The car was driving like crap basically after that. Well, the SHO learned that behavior and I had to pull the negative battery cable off for a while to reset the KAM. This morning, I performed the procedure in our manual (page 340 for my 2010) which states:
After a battery disconnect, the car must relearn idle and trim settings.
Start the car and let it come up to operating temp.
Turn on the A/C and let it idle for 1 min.
With the A/C on disengage the parking brake, place your foot on the brake and shift to drive, let it idle for 1 min.
Then drive the car over 10 miles.
Doing the procedure the car has never driven better. The trans softened the shifts (this procedure reset the trans adaptive learning as well) While braking, the shifts are perfect and not jerky or firm.
Just thought I would pass this on, I'm sure many of you know about this, but I was amazed at how much it made a difference. I know it will continue to learn, but with me as the only driver it should remain how I like it.
So after getting my car back from the shop (replaced the master cylinder) on the drive home I noticed the trans shifting much firmer than before, and also downshifting quickly and firmly during braking, it was pretty herky-jerky. I thought about the possibility of it being an issue stemming from the adaptive learning cycle. When my mechanic took the car out to test the brakes, he obviously had to drive it aggressively and test the brakes aggressively. The car was driving like crap basically after that. Well, the SHO learned that behavior and I had to pull the negative battery cable off for a while to reset the KAM. This morning, I performed the procedure in our manual (page 340 for my 2010) which states:
After a battery disconnect, the car must relearn idle and trim settings.
Start the car and let it come up to operating temp.
Turn on the A/C and let it idle for 1 min.
With the A/C on disengage the parking brake, place your foot on the brake and shift to drive, let it idle for 1 min.
Then drive the car over 10 miles.
Doing the procedure the car has never driven better. The trans softened the shifts (this procedure reset the trans adaptive learning as well) While braking, the shifts are perfect and not jerky or firm.
Just thought I would pass this on, I'm sure many of you know about this, but I was amazed at how much it made a difference. I know it will continue to learn, but with me as the only driver it should remain how I like it.
Good thing my wife never wants to drive the SHO, we would have another bad habit battle 
lease: