I recently replaced both batteries, Duralast - new, a few weeks ago!

I never saw a "Tran Fail-Safe Prog" OBC message!

Should I perform the E31Faq.com - Coast Down Procedure!

I am not for sure how long my driver's side battery was not charged/holding a charge!

Again, more Schooling is most appreciated!

840ways to C

I recently replaced both batteries, Duralast - new, a few weeks ago!

I never saw a "Tran Fail-Safe Prog" OBC message!

Should I perform the E31Faq.com - Coast Down Procedure!

I am not for sure how long my driver's side battery was not charged/holding a charge!

Again, more Schooling is most appreciated!

840ways to C

I don't understand. Are you seeing that message now? That message should be gone if the batteries are in good charge and are of same make/model/CCA/Amp etc.

The coast down procedure on e31faq only applies to the V12. One thing you can try is turn your key to position 2 (The last click before starting the car) and then row through your gears. Then Start the car in "N". Then do a quick drive around your neighborhood in 2nd gear and low speed.

See if that clears things up. Please make a note of any unusual noise.

Ahmed303,

I never saw "Tran Fail-Safe Prog" OBC message at All"

I should be good to go!

You are good then.

One thing you can try is turn your key to position 2 (The last click before starting the car) and then row through your gears. Then Start the car in "N". Then do a quick drive around your neighborhood in 2nd gear and low speed.

See if that clears things up. Please make a note of any unusual noise.edited by Bill

OK, Ahmed, what does this procedure do? IMWTK

edited by Bill

OK, Ahmed, what does this procedure do? IMWTK

AFAIK, This forces the Automatic tranny to reset the Adaptive programming and learn again.