Intergrated Motor Assist Battery Failure on Honda Insight

Integrated Motor Assist (IMA) battery failures are not uncommon. The IMA battery will require replacement when it fails.

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Average mileage: 100,469 (32,000–150,000)
9 model years affected: 2000, 2001, 2002, 2003, more2004, 2005, 2006, 2010, 2011
25 people reported this problem
14 people shared problem details
2010 Honda Insight132,000
Check engine light came on. Honda is covering the repair, extending coverage up to 150k miles.
2002 Honda Insight95,000
IMA light and check engine light came on. IMA would not "charge". Had all the codes that the IMA was bad. Honda would not "help" with the replacement of the IMA battery. I risked $350 and bought a "grid charger". It worked. IMA has been working great. Now have 106,000 miles. I definitely would recommend a grid charger.
2006 Honda Insight82,000
IMA light and Engine light
ima light on -- very disappointed in honda as i wish to drive this car for another 100k miles.
2006 Honda Insight109,000
2006 Honda Insight. IMA battery failed. Honda Motor Corporation will not return my call regarding this problem. The dealer (DW) in Franklin Tn. told me last week $3,500.00 to replace IMA battery with remanufactured battery(3yr/36,000). Now the dealer asks me could I pay $1,000.00 for the repair. I do feel this is reasonable but, HMC knows these batteries are defective as the batteries in the Honsda Civic Hybrid (2006)that are now in a Federal Class Action Lawsuit. I feel Honda should replace the defective battery in my Insight free of cost to the consumers. Whoever heard of a dealer going from a $3500.00 repair, to can you pay $1000.00 ? In my opinion, they just admitted to their guilt. By the way, my wife has driven Honda's faithfully for the past 30yrs.
2002 Honda Insight101,400
Honda replaced my IMA battery in 2012 no charge with about 85000 miles. Since my retirement in 2013 I don't drive it much and this week the engine and IMA lights came on at about the same time. The battery that was fully charged when I started the car quickly discharged. I also noticed that there is no charging happening. The regenerative braking isn't working either. Strangely the auto stop also quit working too. Your help is appreciated
Same as others. Looking for certified repair shop.
2001 Honda Insight50,000
purchased 2nd hand ex demonstrator with 20,000kms,in 2002 Honda replaced the IMA battery under warranty after 8 years.Battery failed again after 2 years met replacement 50% this Battery failed after 23 months we had to pay for replacement now just replaced the Battery at our cost again total well cared for mileage 62,000 miles.Come on Honda start taking some responsibilty. Note we are in Perth Western Australia What a Hybrid now on its 4th Battery
2002 Honda Insight145,000
I purchased this car three months ago and it had a replacement IMA battery in July 2012. at 122,264 miles. It worked perfect until yesterday when the check engine light and the IMA light came on. I have an appointment to have it checked in a week, but wonder what hints or suggestions people out there might have? Thanks, Richard P.S. I have read of a grid charger that could fix or prevent this. Anyone know anything about these?
2002 Honda Insight108,000
2002 honda insight Had same problem the IMA light came on took car to dealer found out honda extended the warrenty, battery was replaced for free.
2001 Honda Insight124,000
I replaced the battery with a refurbished battery instead of the Honda battery which costs twice as much. However, the first battery shipped did not operate correctly. I had the supplier send me another battery, which they did promptly. I then had that installed. It works well now. The cost of the paying the dealer to diagnose and install both batteries ran me almost $1,000. My savings in the end was over $1,000 but the hassle and time it took tried my patience. I had to use a dealer because of the voltage on the batteries, the auto repair shops I use did not have the insurance to handle high voltage products.
2003 Honda Insight101,000
the IMA will not charge, but no light has come on telling me its not working
2001 Honda Insight84,000
IMA battery died at 84,XXX miles. Honda refuses warranty because previous owner had wired a voltage monitor into the system. I will never buy another Honda!!!!!
The IMA light came on followed shortly by the check engine light. Appointment is Monday It is a civic hybrid
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