2020 Honda Accord Electrical System Problems

9 warnings lights turned on on my dashboard and when going slow and accelerating it brakes by it self also brakes on freeway going 70 mph and then recovers

My car shut off on the road. I tried to accelerate but all my lights on the dashboard came on. I wasn’t able to accelerate more than 20mph. I was about to make it back home. Today I tried to take it out on a test drive, it’s drivable but I was not able to accelerate. Every time I pressed the gas, my car would stall. This is the 4th time it happened.

All of the warning lights and 8 warning messages are displayed on my dashboard. They display for a certain amount of time then they go off and return. A number of Youtube post suggest disconnecting the negative battery terminal for 5 minutes to reset the computer. This is a short term fix. I took the car to Honda for diagnostic test twice. First time I was told it was the turbo and would cost around $2,000. I took it to a different Honda dealership for a second opinion and after their diagnostic test I was told it was an issue in the steering wheel. I had the work completed for the steering wheel, but that was not the issue and the mechanic that completed the work on my steering wheel did a test ride in the vehicle and stated it's not the turbo, because the vehicle is driving normal. Not sure what to do next, but saw a post about reporting this issue to NHTSA.

ENGINE,Coolant system VEHICLE WAS CUTTING OFF IN THE MIDDLE OF DRIVING SHAKING AND JERKING

All the indicator lights are activated on the dashboard. They go off after disconnecting the negative battery terminal bit co.e back on later.

I have constantly had to replace spark plugs within the last year — all lights are on dashboard. Finally took it and got a P0372 code, rough idling and misfiring, and stalling. Car once cut off on me while driving. Took it to the Honda dealership and it is indeed my fuel injectors and gasket. I have tried to get in touch about a possible recall but the Honda Manufacturer are failing to release a recall. With all lights on dashboard, NO features of the car can be used (cruise control, road departure, lane keep assist, collision mitigation, hill start assist, traction control, brake hold, and tpms) I’m looking forward to a recall coming as soon as possible. I have done my research and thousands of people are having the SAME issue, it is frustrating especially with the cost of work having to be done. Nobody should have to purchase a new car because of a defect of the manufacturer or too lazy to investigate the issue. HONDA Salesmen and mechanics all say the same thing about the 1.5L Sports model. Over 3,400 worth of work due to a problem I did not cause.

Car has recently started to actuate the door locks while accelerating from a slowing or braking position. There was some clicking or chattering under the steering wheel that may be a symptom before this started happening. It sounds a lot like the recall for other Accords on the control module. Either way, the car should not be actuating the locks when accelerating from a slowing or braking situation. This is not normal and could be life threatening if in an accident.

The touch screen radio will randomly start pressing itself, it’s a major safety issue. You can be on a road trip with the GPS on the screen and it will randomly go to settings causing you not to be able to see where you need to go next. This is a constant problem I deal with everyday.

The vehicle keeps braking automatically with nothing in front of me, I see numerous people reporting it so I figured I should aswell, nothing in front or near me when it automatically brakes, it is scary as heck tho!

Good Morning, I have new Honda Accord 2020 which always been taken care of regular services and oil changes etc. This morning I tried to start my car going to work but suddenly all brake related warning signs came off. My card still not starting the engine. I researched online and found out many people who have same Honda facing same issues. So I figured it's better to be reported before someone gets really hurts while on road. Please find attached pictured with this incident report please.

Electrical drain in system causing premature battery failure and electrical misfiring that causes the car to shut off and flashing a brake warning message to contact dealer and once this occurs car won’t start until Honda link and hands free pairing are reconnected. Issue is if the misfiring drains the battery, driver is not able to reconnect the cars apps and pair the Bluetooth, therefore, car is not will be immobile until battery is recharged.

The contact owns a 2020 Honda Accord. The contact stated that when attempting to start the vehicle, it would rev up and take an extended 15-second start before starting. The vehicle was taken to the dealer, who was not able to duplicate the issue; however, did presume that a defective fuel system caused the failure. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 48,000.

Malfunctioning fuel injectors causing misfires stem from a known issue with faulty fuel injectors; a problem widely reported across multiple Honda models equipped with the 1.5-liter turbocharged direct injection engine. Notably, the Honda CR-V (2019–2023), Civic (2019–2022), and Accord (2018–2022) have all been consistently linked to fuel injector failures. The most serious safety concern associated with this defect is the potential for sudden throttle changes, which can trigger the check engine light, cause the engine to lose drive power, hesitate, or even stall—all of which significantly increase the risk of a crash or injury.

Multiple warning lights on the dashboard come on and stay on including but not limited to check engine light, abs, break lights ect…

The Honda Infotainment system, does not respond to touch, and randomly changes screens as if someone is pushing buttons. It randomly switches to the phone, contacts, music, Bluetooth connection, and navigation. When using navigation it moves the map and brings up routes. This can cause significant distractions to the driver. Multiple individuals have reported this issue to the dealer.

This engine has been so poorly designed it leaks coolant Into the engine system. I am extremely frustrated and disgusted with the dealership and Honda for knowing these engines are defective yet still producing/selling them. We pay hard earned money for something so unreliable it’s actually insane. I don’t want to be nasty about it but someone needs to say something.

I continue getting a message Supplemental Restraint System Problem. See Your Dealer. Also, many times not all my doors lock and I have replaced the battery for key fob numerous times and no luck still while driving I hear a noise as if the doors are locking or unlocking on its own.

Brake system light keeps coming on

A supplemental restraint message is occasionally flashing on my dashboard

My blinker won't appear on the dash. My trunk won't open. My back up camera won't come on at all. Can't adjust my exterior lights, stuck on the dimmest setting and can't change. Lights will also flicker and I have no control over it. My radio screen told me to enter a code but wouldn't allow me to. My break system light was on. There is warning reading adaptive cruise control see dealer, automatic emergency braking see dealer, lane departure warning see dealer. Doors locked and unlocked while driving. Air condition wasn't blowing the temperature it said, and acting as it was on low when it was on the highest setting. It is available for inspection upon request. I brought my car into a Honda dealership today. My car had to stay overnight because they were unable to address the problem. There were no prior problems or warnings beforehand. All these problems first appeared when I started my car for the first time on November 14, 2024. These put myself and others at risk because the doors locked and unlocked which could have caused us to get trapped in. The lights not working put me at risk at night because I could not see the road that good.