Honda Car Forum

There are new software updates out for the 2005 Honda Accord Hybrid. I
got one for the ECU/IMA and another for the transmission. Shifting and
clutch performance is a lot less stupid than the original software. In
fact, it could be worthy of a $30K car now.

Original: Tire squealing lurch waking from auto-stop, dangerous forward
lurch while braking (IMA shutdown), looses speed when gas pedal is
depressed quickly, lug then lurch during light acceleration, bug that
could fry the IMA system when a generic diagnostics computer is used.


Recall: Fixes IMA bug, lurch waking from auto-stop, lug then lurch, and
the dangerous forward lurch while braking. Adds lag when accelerating
lightly, limits RPM for no reason, and the torque converter twitches on
slight inclines.


Latest: Fixes lag, slowdown when gas pedal is depressed quickly, and
mostly fixes the torque converter twitching. Not sure if it fixed the
RPM limiting.