CUSTOMER CONCERN Customer states the IMA and check-engine lights are on. DTCs P0A7F, P1570 and P1435 are stored. CAUSE Battery-module testing and Honda TSB 09-025 confirmed deterioration inside the high-voltage IMA battery pack. CORRECTION Remove and replace high-voltage IMA battery pack. Reflash applicable IMA control software and clear DTCs.

CUSTOMER CONCERN Customer states the master warning and check-engine lights return after approximately 10 miles, with P0A80 and P3000 information code 123. CAUSE Road-test scan data showed excessive variation between high-voltage battery blocks; a block differed by more than 0.5 volt under load, confirming battery-pack deterioration. CORRECTION Remove and replace high-voltage battery pack. Clear hybrid-system DTCs.

CUSTOMER CONCERN Customer states the IMA warning is on and DTC P0A7F is stored. CAUSE Hybrid-battery testing confirmed battery-module deterioration. CORRECTION Remove and replace high-voltage IMA battery pack. Clear IMA DTCs.

CUSTOMER CONCERN Customer states the IMA and check-engine lights are on with P0A7F, P1570 and P1435. CAUSE Battery-block testing confirmed high-voltage IMA battery deterioration. CORRECTION Remove and replace high-voltage IMA battery pack. Program applicable control-module software and clear DTCs.

CUSTOMER CONCERN The IMA and check-engine lights were on, DTC P0A7F was stored, and power could drop enough that the vehicle struggled to exceed 35 mph uphill. CAUSE The high-voltage IMA battery had deteriorated. CORRECTION The high-voltage battery was replaced and the required control-module software was updated.

CUSTOMER CONCERN The IMA and check-engine lights were on with DTC P0A7F. CAUSE The high-voltage battery module had deteriorated. CORRECTION The high-voltage battery was replaced.