2015 Honda Civic: Rodents eat wiring
Common wear/failure (not a recall)
Symptoms
Owners of the 2015 Civic report: rodents eat wiring. CarComplaints.com lists 3 owner complaints, average mileage 17,200 miles.
NHTSA has 29 owner complaints for the 2015 Civic in this area. Examples:
- NHTSA complaint ODI #11771056 (filed 10/14/2026): “The vehicle experienced a sudden component failure while driving, triggering immediate warning lights for the integrated motor assist (ima), high-voltage battery system, and braking system. the failure of the motor power inverter (mpi) causes an abrupt loss of…”
- NHTSA complaint ODI #11725331 (filed 03/18/2026): “Vehicle battery drains while vehicle not in use. have replaced the battery twice, and replaced alternator. problem persists. when this began, it coincided with the car's door lock feature unlocking the vehicle upon approach, within about five feet, without pr…”
Likely causes
Sources do not establish a single root cause; diagnosis is needed. Owner-reported fixes are listed below.
Fix, in plain English
Most common owner-reported solutions on CarComplaints.com: repair wiring, use preventative tape (3 reports). Check for open recalls and extended warranty coverage with a dealer before paying out of pocket.
DIY difficulty: Moderate
Finding and splicing chewed wiring is doable with a multimeter and patience but can be time-consuming; harness replacement is pro work. (Our assessment.)
Cost
CarComplaints.com owners report a typical repair cost of about $1,000 (owner-reported average, not a quote).
Typical parts (search links, no affiliate codes)
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