2020 Honda Civic Electrical System
Owner-reported problems and safety issues filed with NHTSA. Review common failures, severity levels, and complaint trends over time.
Complaint Timeline
Chronological view of owner reports
vehicle turns on in to accessory mode, does not allow me to turn off vehicle sometimes car turns on at night by itself, alarm goes off when parked and locked
Q: What component or system failed or malfunctioned, and is it available for inspection upon request? A: BCM (body mechanical module) became faulty, causing car to turn on ignition by itself. Would be sitting in car with it off and the ignition would turn on causing issues with battery and gas consumption. Also in order to save that until it was figured out what was wrong I had to disconnect the battery causing multiple resets to my electrical system. Yes. Q: How was your safety or the safety of others put at risk? A: Would be sitting in car with it off and the ignition would turn on causing startling and issues with battery and gas consumption. Q: Has the problem been reproduced or confirmed by a dealer or independent service center? A: Confirmed and fixed so far by a small and independent electrical mechanic. Q: Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? A: No. Q: Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? A: No.
While driving on interstate highway, main dash display went almost completely dark. Could not see speed, warning lights, gas gauge, engine temp, etc. Pulled over to check out problem and "push to start" button would not turn off engine. It did on second try. Dealer diagnosed fault in gauge control module. Must be replaced.
The car cuts off while driving
The contact owns a 2020 Honda Civic. The contact stated while driving approximately 35 MPH, there was an abnormal odor coming from the A/C. The contact stated that there was a dangerous chemical called R1234YF leaking into the cabin of the vehicle. The contact stated that the odor from the leak made his daughter sick. No warning light was illuminated. The vehicle was taken to the dealer and diagnosed with a leak through the evaporator in the cabin as well as a leak in the condenser and compressor. The vehicle was not repaired due to cost. The manufacturer was made aware of the failure. The approximate failure mileage was 49,000.
The body control module is failing, read multiple posts online and Honda is not fixing it. My alarm goes off and I cannot turn it off, have to use my key. The vehicle powers up on its own into accessory mode when parked, vehicle off and no key fob in the car. This causes the alarm to activate, drains the battery and causes temporary safety features- collision warning, lane assist, cruise control etc to not work. As well as drains the battery. Honda has recalled this part on other models but not the 10th generation Civic.
See attached document for complaint
The AC condenser has been replaced twice along with the shaft seal.Which then caused my evaporator core to crack and is now leaking and gonna cost me two thousand dollars
Power windows rolled down on their own
The contact owns a 2020 Honda Civic. The contact stated while pressing the key fob to unlock the doors, the doors remained locked. The contact had to manually unlock the doors. The contact attempted to lock the vehicle with the key fob however, the doors failed to lock as needed. The vehicle was not diagnosed. The manufacturer was not contacted. The failure mileage was 28,000.
The contact owns a 2020 Honda Civic. The contact stated that occasionally the windows on the vehicle independently rolled down while the vehicle was turned off. The contact also stated that while driving at various speeds, the trunk opened inadvertently without warning. The dealer had been notified twice about the failure. After the first failure, a dealer employee acknowledged the failure; however, the contact was informed that there was no remedy for the defect. After the second failure, a dealer employee informed her that they had never heard of the failure before. The manufacturer was also notified of the failure but offered no assistance. The vehicle had yet to be repaired. The failure mileage was unknown.
Hello. I have a 2020 Honda Civic Hatchback Sport. The stock audio system makes a VERY loud crackle and popping sound before completely cutting out, this abrupt malfunction frightens me and hurts my ears. Additionally the malfunction of this audio unit may cause other safety problems because it is connected to the back-up camera which can freeze/reboot randomly when the electrical/software malfunction occurs. I listed the most recent incident date below however this problem has been intermittent since I purchased the car new in 2020. My car is now out of warranty and Honda refuses to address the issue even though it was present before 36,000/3 years. Thank you.
The contact leased a 2020 HONDA CIVIC. The contact stated that while driving at various speeds, the instrument panel would intermittently display images over the speedometer which would obstruct his ability to see his current rate of speed. The contact had brought the vehicle to the dealer where they informed him to document the failure and tried multiple repairs; however, the failure persisted after each repair. The manufacturer was also notified of the failure and offered no assistance. The vehicle had yet to be repaired. The failure mileage was approximately 200.
TL* THE CONTACT OWNS A 2020 HONDA CIVIC. THE CONTACT STATED WHILE DRIVING 60 MPH, SEVERAL UNKNOWN SAFETY FEATURES WOULD ACTIVATE AND DEACTIVATE INADVERTENTLY. THE CONTACT STATED SEVERAL UNKNOWN WARNING LIGHTS WERE ILLUMINATED. THE VEHICLE WAS TAKEN TO TONKIN GRESHAM HONDA (24999 SE STARK ST, TROUTDALE, OR 97060, (503) 667-7077) HOWEVER, THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS INFORMED OF THE FAILURE. THE CONTACT WAS STILL AWAITING A RESPONSE. THE FAILURE MILEAGE WAS APPROXIMATELY 3,696.
WHEN USING THE COLLISION MITIGATION SYSTEM IT WILL FALSELY DETECTS SHADOWS FROM BRIDGES OR TREES AS OBJECTS/VEHICLES IN THE ROAD AND SLAMS ON THE BREAKS. ADDITIONAL THE LANE DEPARTURE WILL TRY TO VEER OFF THE ROAD AT EVERY EXIT IF I AM IN THE RIGHT HAND LANE. BOTH THINGS HAPPEN WHILE DRIVING ON CITY STREETS AND THE FREEWAY. THIS HAS MULTIPLE TIMES TO THE POINT WHERE WE HAVE TURNED OFF THE COLLISION MITIGATION AND LANE DEPARTURE. THE LAST TIME IT HAPPENED WAS TODAY, 9/19/2020
TIRE BLEW FROM UNKNOWN REASON IN SEPTEMBER 2020. CAR PURCHASED IN JUNE 2020. REPLACED TIRE IN SEPTEMBER FROM BROOKS HUFF. TPM LIGHT IS NOW COMING ON AFTER A SCHEDULED ROTATION/OIL CHANGE. BROOKS HUFF CHECKED PRESSURE OF ALL 4 TIRES AND LIGHT WAS RESET WITH CALIBRATION. LIGHT CAME BACK ON SAME DAY. TOOK TO HONDA DEALER ON 12/5 IN YORK PA AND WAS ADVISED TPM LIGHT WAS COMING ON DUE TIRE REPLACEMENT IN SEPTEMBER FROM A TIRE MANUFACTURED IN USA NOT FRANCE LIKE OTHER 3 TIRES. DEALER IS SAYING BROOKS HUFF SHOULD HAVE KNOWN TO GET ANOTHER TIRE MADE IN FRANCE AND BROOKS HUFF IS SAYING THEY NEVER HEARD OF THAT. SUCK WITH LIGHT COMING ON BECAUSE ONLY 10K MI ON CAR AND CAN'T AFFORD ANOTHER NEW TIRE AFTER 3 MO.
Trend Over Time
Complaints by year
Other Issues
Common problems reported
Quick Summary
The 2020 Honda Civic has 16 Electrical System complaints on file. Review the timeline above for detailed owner experiences.