I too have been told that my IMA battery needs replaced. My car was just in the shop for the CVT problem of hesitation and juttering upon take-off, when I drove the car home from the dealer no lights were on. After starting the car about 5 hours later to pick up my son from school, the IMA light and check engine light were both on. After talking with the dealer they told me to just bring the car in, and a computer probably just needed to be reset. After about 15 mins, I get a quote for $4300 because the battery is bad! Imagine my suprise. The car has 97488 miles and so the warrenty I have been told is out of date. My question is, I found a link saying that:

Taken from an internal service bulletin dated March 31, 2006

"WARRENTY EXTENSION: IMA BATTERY PREMATURE DETERIORATION DTC P1447 OR 1449

The IMA battery may be susceptible to premature deterioration in which case the MIL will be illuminated and DTC P1447 or P1449 can be retrieved. The warranty period on the IMA battery is extended to 10 years or 240,000km, whichever comes first.

AFFECTED VEHICLES:

2000-2004 .............. ALL"

Does anyone have a copy of this, and if so, where did the bulletin originate from? I am in Texas, so I am not sure if it would apply to me. If so I would love to save $4300!