The IMA light coming on is usually caused by a battery pack that is no longer charging correctly. Replacing the battery pack will turn off the IMA light.
Car problem reports
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Most reported Honda Civic Hybrid problems
On certain models the windshield wipers will not park in the proper place or won't shut off. The wiper motor must be replaced to repair this issue.
On Certain models a faulty power window switch can cause the power windows to work or not work intermittently.
Front compliance bushings may crack and break. Damaged bushing should be replaced before damaged is done to suspension components.
Damaged engine mounts can lead to vibration and roughness felt in the steering wheel. A rattle in the dash and engine area may also be heard. Replacement of damaged mounts will commonly correct these issues.
Plugged moon roof drains can cause a water leak inside the car, usually over the head of the driver or passengers head when turning a corner. Cleaning the drains will fix this problem.
A harsh engagement of the automatic transmission may be noted after the engine auto stops. A software update for the powertrain control module (PCM) / constantly variable transmission (CVT) is available which may correct this issue.
On some models the drivers and or the front passenger door glass will come out of it's track. The door glass will have to be replaced to address this issue.
I have had three episodes where the check engine and the IMA lights came on. Also noticed that the charge indicator on the battery would jump around wildly. Engagement of the IMA motor was herky jerky.
Dealer says that they have ordered a new IMA battery and will replace it under warranty.
Curious to see if this corrects the problem. My suspicion is that the battery was bad from the get go as this car has never performed as well as my 2...
The brake pedal may feel hard after a cold start at higher altitudes. Our technicians tell us replacing the power brake booster and updating the computer software should correct this concern.
A fluid leak may develop from one or both front suspension struts. Replacing the struts (usually in pairs) will be necessary to take care of the problem.
On certain models the drivers seat bushings can wear out and the seat can rock back and forth. Replacing the bushings are needed to repair this issue.
On some models the bump stop in the strut can cause a noise on turns. Replacement of the bump stop will fix this problem.