Just a note on the update below. I have a 2010 Insight ES. In October 2012 I had 3 updates installed. I've asked about the update below when having the car serviced and been told the dealer checked but it wasn't available for my car. Another UK Insight owner at insightcentral reports the same thing. So far - no reports in Europe of this update being available from others on that forum Meanwhile in the USA owners have received a recall letter, seemingly related to this update. The letter definitely mentioned the IMA memory effect. I'm not 100% sure whether the three 2012 updates included this one or not.. One was certainly related to IMA function but I was only told verbally that 3 updates had been applied after I mentioned forced charging up hills. I didn't get any paperwork at the time but the change in the way the car drove was immediately obvious with a striking improvement in smoothness and predictability of IMA behaviour. I have had a minor improvement in fuel economy since they were installed but that could equally be down to me starting to use traffic avoidance with a Tomtom satnav app at around the same time. "This is potential issue seen on the following vechicles. MODELCHASSIS CODEYMCR-ZZF111, 12INSIGHTZE210, 11, 12Jazz HYBRIDGP112, 13The Symptom - Battery charge indicator decreases suddenly with reduction in available IMA assist. - IMA warning light is on with DTC P0A7F only. The Cause Memory effect of the IMA battery causes a change to the discharge voltage. This voltage change causes the ECU to miscalculate the IMA battery usable capacity and subsequently reduce the available IMA assist during driving. The Fix Reprogramming of the IMA motor ECU. Application to Production Line JHMZE2***CS205283 JHMZF1***CS203866 JHMGP1***DS000001 Visit you dealer to carry out IMA Battery Memory Learning and IMA ECU Software Update, the update will take in excess of hour and half."