2021 Honda Insight Complaints

AIR BAGS — Filed 06/08/2026

The contact's daughter owns a 2021 Honda Insight. The contact stated that while her daughter was driving at an undisclosed speed, the front driver's and passenger-side air bags suddenly deployed without impact. There was no warning light illuminated. The contact stated that the air bags cracked the front windshield and injured the driver's arm. The police arrived at the scene, but no police report was filed. The contact was unsure whether the driver had received medical attention. The contact's daughter had someone drive the vehicle to the residence. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 150,000.

STRUCTURE — Filed 04/10/2026

There is a massive hood flutter when large vehicle drive towards me going above 50mph. It feels and looks like the hood is not latched correctly and going to open into my windshield. This has happened since I purchase the vehicle new in 2021

FUEL/PROPULSION SYSTEM — Filed 09/04/2025

Went in for a typical servicing. They noted that the downstream O2 sensor was damaged by rodents. The vehicle, with around 14k has always been stored in a weather tight garage, never stored outside. There has been no rodents in the building since I owned it from 1999. This is a presumptuous statement I refuted, but they wouldn’t take off, and I felt this is a warranty or recall item. There are lots of speed bumps in the North Portland neighborhood, which may have caused the problem by cable scraping. I believe they documented it as rodents to escape their extended warranty contract requirements. I purchased an O2 sensor, which my independent said I don’t need to use it after taping the scrape as there’s no electronic issues being reported in the system. I would like this investigated and them pay for the sensor I apparently don’t need to install.

SEATS — Filed 12/19/2025

I received a 2021 Insight Seat Weight Sensor Safety Recall in September 2025 saying that recall replacement parts were now available at Honda Dealers. Ever since I received this notice, none of the Atlanta area Honda dealers are able to remedy the defect in my vehicle due to lack of parts, contrary to the notice saying parts are available.

ENGINE — Filed 11/21/2025

Under certain circumstances, the portion of the PCU that controls charging of the 12 volt accessory battery malfunctions, sending the PCU into a "fail safe" mode, preventing battery charging and activating warning displays for the driver. This has caused my vehicle to stall while driving, potentially increasing the risk of a crash. Other honda hybrids during this year have been recalled but not by my VIN number, however I am having the exact same issue. Below has me give a specific date but this happens almost every morning.

SERVICE BRAKES — Filed 11/10/2025

The brake servo control unit feel simulator which reduces the simulation force provided to the brake pedal during emergency or failed conditions and is a key component of realizing a Regenerative Braking System. It provides a good pedal feeling to a driver, improves energy recovery and ensures braking security. My safety has been put at risk as that part is integral to my brake system (including the hybrid function) e.g. my car was in reverse and the brakes were not responding and had to leave my car. I towed my car to a local independent service provider and they confirmed via the OBD-II scanner that confirmed my break servo control feel simulator is bad and would need to be replaced. After doing research, the brake servo part is made in Japan by a company called Nissin. The part has been recalled in Japan and UK due to failures in similar hybrid models. The brake servo serves many functions including ensures consistency, mimics traditional braking, and provide the driver with a natural-feeling brake pedal, especially because the system relies on both regenerative braking and hydraulic friction brakes. For about 3 days I received a cluster of warning signs from my car such as traction control, brake system, brake, steering malfunction, and ACC. Given that this part directly affects braking capability and overall vehicle safety, I am deeply concerned that my safety has been compromised as the life of the part is supposed to last the life of the car (about 150,000 miles) . I respectfully request an immediate investigation, and would like to know whether this issue is covered under an existing or pending recall campaign. If not, I'd like to submit this to the recall campaign in the U.S. Please advise on the next steps for inspection, replacement, and ensuring my vehicle is safe to drive. Thank you.

ELECTRICAL SYSTEM — Filed 09/30/2025

While my wife was driving my car on a busy road. The servo brake control unit/ pedal simulator broke making it near impossible to stop the car. She had to crash the car into a parking block. And Honda import/export is uncooperative and dismissive of the fact that my wife and daughters lives were jeopardized due to the part malfunctioning

FORWARD COLLISION AVOIDANCE — Filed 07/22/2025

On two (2) occasions, the "collision mitigation braking system" braked with no reason. It has happened on a quiet and straight line residential street with no other moving vehicle, pedestrian, animal, or any other obstruction in view. After one second or so of braking, it returned to normal. It is available for inspection. I have not spoken to the local Honda dealer about it, and there were no adverser repercussions. There were no prior warnings of any system malfunction.

FORWARD COLLISION AVOIDANCE — Filed 06/21/2023

On at least two occasions the automatic emergency braking system has activated with nothing in front of the vehicle. Several instances when cresting a steep rise in the road the forward collision warning system has activated the "BRAKE" warning light.

UNKNOWN OR OTHER — Filed 09/12/2024

I am urging your immediate attention to a safety issue affecting the 2021 Honda Insight. The vehicle’s infotainment system, which controls key safety features including the Tire Pressure Monitoring System (TPMS), has failed. This malfunction prevents drivers from monitoring tire pressures, applying necessary software updates, and accessing navigation and hands-free features, which significantly increases the risk of accidents. The system's failure distracts drivers and compromises critical vehicle safety functions, warranting an urgent recall investigation. Thank you for your attention to this critical matter.