2009 Honda Accord: sudden unintended acceleration

Filed Sep 30, 2024 · Electrical, Engine · 84,000 miles · MA

The contact owns a 2009 Honda Accord. The contact stated that the vehicle had been experiencing an oil leak. The dealer diagnosed that the valve cover gasket had failed and needed to be replaced. The contact stated that the valve cover gasket was replaced several times; however, the failure persisted. The vehicle was taken to the dealer, where it was diagnosed that a hairline fracture in the engine housing had caused the oil vacuum seal to fracture and the oil to leak. The dealer replaced the engine housing. The contact stated while driving at various speeds, there was an abnormal loud sound coming from underneath the hood, and the vehicle skipped gears and lunged forward. Additionally, the contact stated while driving 70-75 MPH, the contact noticed a burning chemical odor. The check engine warning light was illuminated. The contact pulled over to the side of the road and turned on the hazard lights. The contact then drove to the residence, where the contact opened the hood and noticed that the battery had melted. The dealer was not contacted. The manufacturer was notified of the failure and a case was opened. The failure mileage was approximately 84,000.

Filed Dec 31, 2018 · Engine · 110,000 miles · PA

Unintended acceleration. Has occurred 6 times since march 2018. No coloration with ambient temperature, weather conditions or speed. Symptom: driving & braking hard to slow down, place into neutral and engine revs up to 5k RPM. Restart car after about 10 seconds and engine runs fine, if sooner engine revs back to about 5k RPM. Taken to shop - no problem found. Has only happened at low speeds coming to a stop. Was traveling in a strait path 4 times, twice when turning into a parking spot. Note: I travel back roads mostly. Car has over 110,000 miles.

Filed Mar 1, 2015 · Engine, Transmission · 45,500 miles · CA

This was the second incident, while I was stopped at the red light, as the light turned green I let go of brake and applied the gas and suddenly the RPM went to almost red line and I was real lucky to be able to put the gear shifter in to neutral and pull over and turned the engine off, few minutes later started the engine and it was normal again, this was the second time in a month that this happened first time I didn't even apply any gas my foot was still on the brake pedal, I will be calling american honda to report this also and will take my car to the dealer, but they said this problem is not going to show on the scanners, the service advisor told me that he has heard about this, but has not seen one in person, I told him to do a google search and he can see this problem with honda's all over the internet. This is known as unintended acceleration that forced toyota to recall their calls and now is honda's turn to do the right thing before anyone dies.

Filed Feb 17, 2015 · Acceleration, Engine · 19,500 miles · VA

On two occasions in the last six months, my 2009 honda accord experienced what I would describe as unintended acceleration while operating the vehicle at a low speed (first time turning on to a road; second time accelerating while attempting to park the vehicle). The engine surged with power and nearly redlined the tachometer. Each case I shifted to neutral to disable the drive train and then shut down the car; waited five minutes and restarted the car. I scanned the ntsb data base to look for similar reporting but found none. I bought this car used, in 2014, from a honda dealership, with only 15440 miles on it. I drove it without incident for at least nine months. I now have about 25500 miles on it. I also own an older accord and consider their vehicles to be quality products. I am not treating this as a complaint as much as I am trying to determine if similar incidents have occurred. Unlike the recent toyota issues of floor mats inducing acceleration, the mat I used is secured to the floor of the car and does not come within three inches behind and below the vehicle's acceleration pedal. Of note, this model variant is powered by a 4-cylinder engine. Given the infrequency of this; I am wondering if this is a software glitch in the vehicle's computer command module.

Filed Sep 26, 2014 · Driver assistance, Engine · 61,000 miles · NY

Tl* the contact owns a 2009 honda accord. The contact stated that while driving at various speeds the ABS/vsa and the check engine warning lights illuminated. In addition, the vehicle unintended accelerated. The vehicle was taken to the dealer, who diagnosed that the vsa system and the timing change needed to be repaired. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 61,000. Djr updated 11/14/14*cn updated 7/28/2015

Filed Jun 19, 2014 · Acceleration, Transmission · 7,000 miles · CA · crash

While pulling into parking space, with foot on the brake pedal, the vehicle violently lunged forward into a block wall. The driver was unable to stop the vehicle by applying the brakes. The driver was hospitalized for 2 days.

Filed Dec 21, 2013 · Acceleration, Fuel system · 87,686 miles · WI

Started from stop at light intersection and accelerated while making a left turn. After letting off accelerator and now going straight, found car was still accelerating at full throttle. Began heavily stepping on brake with continued unintended acceleration continuing. Shifted from drive to neutral and RPM meter showed engine revving toward 7000 RPM and decided to go back to drive gear to avoid causing engine damage while still heavily stepping on brake. Unintended acceleration continued in drive gear and after several more seconds, I turned the ignition off while in drive gear. Engine successfully shut off and I continued to keep foot on brake and steering the car to a parking lot. After car came to a stop in parking lot, put the gear back to park mode and proceeded to start the car ignition (I have not touched the accelerator pedal at all since realizing the unintended acceleration had occurred). Car started as normal with normal idle speed in park. Drove the car to dealer and had dealer check for codes and take it for a test drive. Nothing abnormal was found during code reading and test drive. Dealer said that driver side rug could have caused accelerator to stick but this is not likely cause (in my opinion) because the accelerator pedal should then have still been stuck when I re-started the car in the parking lot.

Filed Jun 3, 2012 · Acceleration · 45,056 miles · FL

I was stopped on side residential street preparing to turn right onto major thoroughfare. Started to turn right and car shot forward as if the car was possessed-- straight ahead and then veering left. Took foot off gas but still continued at high speed. I struggled with steering,which seemed to be more stiff and not responsive, fearing I would crash first into the stores, trees, light poles directly in front, then as I went with the direction it seemed to be pulling, and veering back left then right, pulled it back to the right enough to get into right curbside lane. I don't think the brakes responded either. Finally somehow controlled it enough to pull into gas station, where I parked but did not turn off the motor. I was afraid to move it any more. Called aaa and honda to report and ask what to do. I was so lucky that for once traffic was light and no one got hurt. I was surprised that I had no police coming after me or some driver who would have been curious as to why I seemed to be driving erratically and screaming through the intersection at such high speed. Floor mats were not touching the pedal. Curious side note: after I made two calls to aaa and honda, the phone would no longer respond. Doing the diagnostics, it said it had full five bars of strength but kept getting "call failed" when I tried to call them back to check tow truck progress. The history of those two calls also seemed to have been wiped off my phone. Tow truck could not call me back and got report that my phone was "busy". Finally while we were waiting for tow truck, my husband took out the battery completely, reinserted and it reprogrammed itself. Question: is it a car defect or did it have something to do with the nearby high tension lines and the phone cell tower across the street? How do I know it won't happen again? Thank god that it did not happen in rush hour traffic.

Filed May 14, 2010 · Engine · 15,000 miles · NJ

Car engine raced while sitting in neutral. Unintended acceleration.

Filed Feb 3, 2010 · Acceleration · AZ

Tl* the contact owns a 2009 honda accord. The contact started the ignition and the vehicle failed to start until the steering wheel was in a tilted position. Suddenly, the "danger" warning light indicator illuminated on the instrument panel, followed by an unintended acceleration. The contact was able to stop the vehicle. The contact is in the process of notifying the authorized dealer of the malfunction. The VIN was unavailable.

Filed Dec 30, 2009 · Acceleration · 8,845 miles · MS

While driving at 30 MPH, vehicle suddenly accelerated to a high rate of speed. Difficulty stopping the car. It was necessary to place in neutral and turn engine off. Honda dealership checked vehicle and could not provide an explanation for this problem. Fearful of this occurring again.