2020 Honda Accord acceleration problems

Filed Sep 19, 2026 · Acceleration, Driver assistance · CA

I was driving on the freeway at freeway speed with my Mom and daughter in the car and all of a sudden the car decelerated suddenly to almost a stop, sending us all flying forward. I felt like we had to have hit something, but we didn't; it just felt that way because of the sudden, abrupt stop while going freeway speed. Our bodies are sore this morning as a result. Thankfully, no one was directly behind me at the time, and we didn't get rear-ended. This could have definitely caused fatalities. If I were to have been killed, no one would have known it was a vehicle malfunction. They would have thought I braked hard for some unknown reason. Even if I braked hard, it wouldn't have caused such an impact; this felt like we hit a wall because the wheels seemed to just lock. Very frightening. I'll probably have to take my Mom to get looked over by a doctor due to the flying forward. Her seat belt flung her back, but for elderly people, it could cause some damage. It took me a moment to realize what happened.

Filed May 6, 2026 · Acceleration, Electrical · SC

All lights on dash are on. Problem with running hot, oil is milky looking misfires, vibration is terrible. Cuts off and will not go over 5 mph sometimes.

Filed Oct 27, 2025 · Acceleration, Airbags · AZ

I tried to take my car to the dealer because my car brakes on its own and it had a alert that something was wrong with the air bags . I can ve driving anywhere and without reason the car breaks putting my life in danger and my family. I have tried to contact the dealer about this serious matter but I don't get anywhere. I am reaching out to see what solution we can come to ?

Filed Oct 7, 2025 · Acceleration, Electrical · MS

All lights have popped up on dash. Stayed on for 2 days back in july and then went off. Came back on 2 days ago (oct 5th) and have not went off yet. LKA, cruise control, parking brake light, TPMS, traction control, and engine light.

Filed Mar 6, 2025 · Acceleration, Brakes · KY

Brake system light keeps coming on

Filed Apr 17, 2024 · Acceleration · 50,000 miles · KY

The contact owns a 2020 Honda Accord. The contact stated that while driving at an undisclosed speed, the cruise control function failed, and the vehicle decelerated independently. 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 50,000.

Filed Mar 13, 2024 · Acceleration, Driver assistance · FL

At least once a month with lane keep assist on, and a vehicle in the lane to my right, an emergency braking maneuver happens automatically. I have to disconnect the system

Filed Jun 2, 2022 · Acceleration · NY · crash

Purchased new 2020 Honda Accord on September 28, 2020. On October 13, 2020 I was pulling into a parking space at a retail store. Going 2 or 3 miles per hour with foot on brake turning into space on my right with steering wheel turned to the right. Suddenly engine roared and car would not stop even with my foot firmly on the brake until it hit a pole. I have since learned it is called unintended acceleration. After crash I drove car to another parking spot. Car was in park and I was on the phone and all of a sudden engine roared - same sound when crash occurred. Honda sent their investigator out and told me all car functions were ok. Car was repaired for $7000.00 On June 1, 2022 the same exact thing occurred as I was pulling into a parking spot on my right with steering wheel turned to the right. As the first incident engine suddenly roared and with my foot firmly on the brake car would not stop until it crashed into the store concrete wall. This car has something wrong with it. There are other stories out there with same story as people are parking the car. The car was towed to a collision shop and I am going to the Honda Dealer I purchased it from to insist this car is a danger to me and others and I cannot drive this any longer. I first wanted to report this before I did anything else.

Filed May 2, 2022 · Acceleration, Driver assistance · NC

CMS - collision mitigation system stops working completely. 2 warning lamps on dash. Cruise control completely inoperative. Vehicle was initially inspected by dealer on 11/19/21with DTC U0401-92 - Temporary stop of integrated driver support system (rejected control request), also found U0416-68 VSA system malfunction. This issue happens every 1-3 thousand miles. Also with the CMS/braking system, it will alert "brake" on dash and brake hard if encountering repetitive shadows from objects that are cast onto the road. My safety and others safety were compromised due to hard braking and cars behind me that then had to brake, nearly rear-ending my car.

Filed Jan 12, 2022 · Acceleration, Brakes · FL

While early driving in early December 2021 in my almost new car (7000+ miles) most all the lighted problems that could occur with an old vehicle lit up like a Christmas tree on the dashboard. Most of the items may or may not have actually quit working but their problem lights stayed on. Still it is no fun driving without cruise when your wife has breast cancer and you have have to drive 3 hours each way to Gainesville, Florida for treatment. I assume all the warning lights functions still worked, but it is hard to tell if things like the brakes were pr were not working when driving as they seemed to work fine. So I soon afterwards took the car into the dealer on December 11, 2021 in Leesburg, Florida. But by this time all the dash lights remained off as they are supposed to. So all they did was change the oil and did non-compliance recall BMC software update 20-039 and BGCM software update. The reason I brought the car in was not specified on my invoice. However, The dealer did say that my transponder for the EZ highway system was blocking the camera on the mirror. I believed them. Since then, however, today all the cash lights again said they were crashing again just before a 2-hour drive to the Gainesville cancer hospital. Upon return the lights went back to normal. I don't believe Honda dealers know what the problem is or why it continues in many millions of similar Hondas. My research on the Internet found at different complaints about said dashboard lights crashing causing similar problems. Most of these complaints had the dealers fix "the problem" and charging fees but again the customers reported do-over same problems.