Honda Insight
The 1.3L IMA hybrid system has two critical age-related weaknesses: the NiMH high-voltage battery degrades significantly from around 130,000–150,000 km. DC-DC converter failures as a consequence are typical.
Eco Tool, No Fun
88 hp and 11.7 seconds to 100 — the IMA system always keeps the combustion engine spinning. CVT with a rubber-band feel, light steering with no feedback. Fuel-saver concept, no driving experience.
Engine Weaknesses 3
The NiMH high-voltage battery of the IMA system degrades over time due to cell imbalance. From around 130,000–150,000 km, capacity drops significantly. A new Honda battery costs €3,300–€5,500.
Symptoms: IMA warning light on, reduced hybrid output, engine runs on petrol alone more frequently
When the IMA high-voltage battery fails, the DC-DC converter can no longer charge the 12V battery. The vehicle becomes unable to start. Converter replacement costs around €2,150.
Symptoms: 12V battery drains while driving, vehicle won't start, IMA warning light on
Active IMA fault codes cause an MOT failure as the OBD readiness monitors cannot be fully set.
Symptoms: IMA warning light permanently active, OBD readiness not set, MOT/vehicle inspection fails
Vehicle Weaknesses 4
The IMA hybrid battery (NiMH) typically lasts 8 to 12 years. The electric assist drops out and fuel consumption rises noticeably.
At temperatures below 0°C the IMA NiMH battery loses significant capacity and can fully discharge after extended parking.
Since the Insight often brakes regeneratively in hybrid mode, the rear brakes are rarely mechanically loaded and rust.
Rattling from the boot, headlining and dashboard are known issues. In cold weather plastic parts produce creaking noises.
Reports & Tests
267 owner complaints filed with NHTSA (2009–2014). Most reported: Airbags (107), Engine (75), Brakes (20).