2018 Honda Clarity Plug-In Hybrid Battery Failure at 108k Miles – $10,000 Repair Quote, Honda Customer Care doesn't care

[Lonewarrior]

From what I have seen in Clarity forum discussions on this topic, I have yet to come across a warranty replacement that was approved solely under the 36.6Ah policy, without an engine code and/or accompanying symptoms.

The P0A7F and P1DC7 combination appears to be the primary basis, and by far the most common reason, on which Honda authorizes battery pack replacements, which leads me to believe that the vehicle’s computer ultimately determines whether the degradation is considered abnormal.

 

[Landshark]

Here’s another theory. The Clarity has an A and B battery. Each has a capacity of 27.5Ah When connected in parallel the capacity is doubled to 55Ah. Is it possible that the dealer has measured, or provided, the capacity of half of the battery? Also, was a 12V battery recently installed, or disconnected for a period of time?

It’s been a while since I’ve seen one of those diagnostic reports, but I recall that there was separate information provided for A and B. We could be looking at an inaccurate reading due to a 12V reset combined with a serious lack of communication between the dealer and owner.

Have there been any Codes thrown, alerts shown on the display, noticeably decreased EV range or loss of performance from the vehicle? Regardless, if you’re going to pursue a battery warranty claim it would benefit you to have a copy of the 36.6Ah document to show the dealer and include in any correspondence with Honda.

Why they would say that your 2018 VIN isn’t covered makes about as much sense as the L2 EVSE or usage habits claim. Keep in mind that Honda only provides a L1 EVSE with the vehicle and there are no cautions or warnings in the manual about not using it.