The contact owns a 2018 Honda Accord. The contact stated that while driving at 40 MPH, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The RPM was elevated above 2,000 RPM, but the engine shuddered, and the vehicle lost motive power. The dealer was contacted and made aware of the failure. The vehicle was taken to the dealer, where it was diagnosed with a blown head gasket. The contact was informed that there was a misfire in cylinders #2 and #3. The contact was informed that there was coolant mixed into the engine oil. In addition, the contact was informed that the head gasket and the engine needed further diagnostic tests. The contact stated that the failure was a known failure with the vehicle. The manufacturer was contacted and made aware of the failure. The failure mileage was approximately 104,000.
2018 Honda Accord: shudder or vibration when accelerating
13 of the 1,900 complaints about the 2018 Honda Accord describe shudder or vibration when accelerating.
- owner complaints
- 13
- of this car's complaints
- 1%
- typical mileage
- 64,000
- recalls
- 0
Shudder or vibration when accelerating by model year
What owners say
Coolant leaking into head gasket which now needs to be replaced as it’s causing the whole car to shudder when acclerating and when not letting off the gas the check engine light will come on and the car will not drive anymore. It then needs to be turned off and on again to go away and won’t fix the issue with the studdering.
The contact owns a 2018 Honda Accord. The contact stated that upon starting the vehicle, the vehicle shuddered abnormally. The contact turned off and restarted the vehicle, and several unknown warning lights illuminated; the vehicle continued to shudder. The contact was able to drive the vehicle, but the vehicle failed to exceed 12 MPH. The contact activated the hazard lights. The vehicle was taken to the dealer, where it was diagnosed with head gasket failure, causing coolant intrusion into the cylinders and damage to the timing chain. The dealer replaced the head gasket and the timing chain. The vehicle was repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 100,000.
The contact owns a 2018 Honda Accord. The contact stated while driving at an undisclosed speed, the vehicle stalled and shuddered. The contact stated that several unknown warning lights were intermittently illuminated. The failure had occurred on several occasions. The vehicle was taken to an independent mechanic where it was diagnosed and determined that the spark plugs, and air filters needed to be replaced. The vehicle was repaired; however, the failure persisted. The manufacturer was not notified of the failure. The failure mileage was approximately 35,000.
The contact owns a 2018 Honda Accord. The contact received notifications of the federal safety agency Campaign Numbers: 23V858000 (FUEL SYSTEM, GASOLINE) and 23V158000 (SEAT BELTS); and the vehicle was taken to the local dealer however, the contact was informed that parts were not yet available for the recall repairs. The manufacturer was contacted, and the contact was informed that unless the vehicle experienced a failure, the vehicle could continue to be driven. The contact stated that while driving in a parking lot and attempting to park the vehicle, the vehicle lost power steering functionality and the vehicle started shuddering. The contact pumped the accelerator pedal and the vehicle returned to normal operation. After the vehicle was parked and restarted, the vehicle resumed to normal. The contact stated that on another occasion while driving with his wife and a child occupant and attempting to make a left turn at an intersection, the failure recurred. The contact depressed the accelerator pedal several times and the vehicle responded as needed. The contact stated that the check engine, ABS, and TPMS warning lights were illuminated. The vehicle was not taken to be diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 57,000.
The contact owns a 2018 Honda Accord. The contact stated that while starting the vehicle, the vehicle experienced a rough idle and shuddered. The contact stated while driving at various speeds, the vehicle skipped and was running rough. Additionally, the vehicle experienced excessive fuel consumption and lost motive power. There were no warning lights illuminated. The vehicle was taken to an unknown dealer, where it was diagnosed that the spark plugs and the turbo needed to be replaced. The dealer replaced the parts; however, the failure persisted. The vehicle was not repaired. The contact stated that the failure was related to the federal safety agency Campaign Number 23V858000 (Fuel System, Gasoline). The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 137,000.
The contact owns a 2018 Honda Accord. The contact received notification of the federal safety agency Campaign Number: 23V858000 (Fuel System, Gasoline); however, the part to do the recall repair was not yet available. The contact stated while starting the vehicle, the vehicle hesitated while starting. The contact stated that the failure recurred increasingly, and the vehicle shuddered significantly while starting. The check engine warning light and other unknown warning lights were illuminated. The vehicle was taken to the dealer for the recall repair. The dealer declined to perform the recall repair. The dealer diagnosed the vehicle and determined that the fuel injectors needed to be replaced. The contact declined to pay for the repair and advised the dealer to perform the recall repair prior to other repairs because the vehicle was experiencing the symptoms of the recall. Additionally, the contact stated that the recall notification advised to take the vehicle to the dealer for recall repair if the vehicle was experiencing the symptoms of the recall. The vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure. The failure mileage was approximately 109,000. Parts distribution disconnect.
The contact owns a 2018 Honda Accord. The contact stated that the vehicle was previously repaired under the federal safety agency Campaign Number: 23V858000 (Fuel System, Gasoline); however, the failure occurred. The contact stated that there was a delay while attempting to start the vehicle. Additionally, the contact stated while driving at various speeds and depressing the accelerator pedal, the vehicle failed to respond, shuddered, and decelerated independently. Additionally, the vehicle intermittently lunged forward while depressing the accelerator pedal. The check engine warning light, Forward Collision Avoidance, braking system, and other unknown warning lights were illuminated. The vehicle was taken to the dealer, where it was diagnosed that the fuel injectors had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the vehicle was not covered under an unknown extended warranty. The failure mileage was approximately 50,000.
My 2018 Honda Accord began malfunctioning on [XXX]. It completely stalled out and all of the warning lights came on. The vehicle was being driven and began to shudder upon acceleration at just 15 mph. The vehicle ended up seizing and lost all acceleration capabilities. The vehicle was able to be pulled over at idle speed and had trouble starting. once I got the car to start, I was able to drive the vehicle into a safe parking lot but only at idle speed as the acceleration was not functioning. I had received the fuel pump recall and had the car towed to Brandon Honda in Brandon FL, and they determined it was not a fuel pump failure but a blown head gasket. I also received a second opinion that confirmed this diagnosis and determined the issue to be the blown head gasket causing coolant to mix with my oil and leak into spark plugs causing spark plug 3 to fail as well. Upon replacement of the spark plug, the car functions once again with acceleration capabilities, however, to prevent any further damage, I had the car towed back to my place of residence. Upon further investigation, I am finding more people experiencing this issue with their new Honda Accords as well. The head gasket should not fail this early on in owning this vehicle especially being the only owner of this vehicle and only 130k miles. I have always kept up with coolant levels, and oil changes, and used the recommended octane by Honda, 87. Repair still has not been made as I am exploring all of my options, however, if this malfunction had happened on the interstate, it could have been fatal. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The contact owns a 2018 Honda Accord. The contact stated while driving 60-65 MPH, the vehicle lost motive power. The check engine warning light and other unknown warning lights were illuminated. The contact was able to veer to the side of the roadway. The contact restarted the vehicle and drove to the residence. Additionally, the contact stated that while starting the vehicle, the vehicle was running rough and was shuddering, and the RPM failed to exceed 2,000 RPM while driving. The contact stated that the failure had been recurring. The vehicle was taken to the dealer, where the fuel injectors were replaced; however, the failure recurred. The vehicle was taken to an independent mechanic, where it was diagnosed that the fuel pump had malfunctioned. The contact was referred to the dealer for recall repair of the federal safety agency Campaign Number: 20V314000 (Fuel System, Gasoline) however, the dealer informed the contact that the VIN was not included. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the VIN was not included. The failure mileage was approximately 75,900.
2018 honda accord 2.0t touring with 10-speed automatic transmission, mileage < 1000. Transmission has rough shifting from 2nd into 3rd gear at low rpms/speed (2,000 RPM / < 14mph) feeling like a manual shift car popping the clutch. This can happen when car is cold or warmed up, car is in the northeast with cold or hot weather. I noticed that the rpms don't drop when it happens which creates the slam into gear feeling judder. Under slightly harder but normal acceieration the car shifts (like a manual car ) as if double clutching from 2-3rd feeling like its skipping a gear but its very quick as you hear the engine revs blip between shifts. I have taken to the dealer who observed the same rough shifting and told by dealer it does shift like this compared to other accord vehicles. Dealer indicated they would only observe the condition since honda has no official tsa out yet. I showed him the acura video for the same engine/trans a clutch fix break-in that's was used to help solve some reported rough shifting and honda dealer would not use it given acura use case. I am on 7,000 miles but under 1yr ownership and the same rough shift condition exist but less severe. Some internet reports state rough shifting goes away above 7k miles as the transmission breaks-in and the software learns the driving behavior but it really has not in my experience. Hard acceleration going above 4500 RPM the car shifts quite normally and smoothly and does not exhibit the low speed rough shifting in any of the normal or sport modes of the car thus surmising there's some form of operational failure occurring by unintentional design in software or mechanical.
Collision mitigation braking system warning indicator is visible on the dash after vehicle shudders and jerks, and adaptive cruise control becomes disabled until the car restarts. This happens while vehicle is in motion at highway speeds, above 50mph.
Service bulletins that may apply
Related recalls
No recalls on record for this model year.
Questions about the 2018 Honda Accord shudder
Is shudder or vibration when accelerating a common problem on the 2018 Honda Accord?
13 of 1,900 owner complaints about the 2018 Honda Accord (1%) mention shudder or vibration when accelerating. The model year with the most reports is 2003.
Is there a recall or service bulletin for this on the 2018 Honda Accord?
There are 0 recalls and 1 service bulletin for the same area of the car. Check them below with your VIN.
Other symptoms on the 2018 Honda Accord
Check engine light 189Warning lights 170Collision warning 165Fuel pump 165Misfire 163Stalling 158Adaptive cruise 132Loss of power 130Won't shift 95Overheating 92Jerking 73Lane assist 51Engine failure 50Backup camera 44Phantom braking 44Hesitation 31Headlights 22ABS 21Won't start 21Airbag light 20Door locks 18Screen failure 15Grinding brakes 14Fuel smell 12Knocking 11Sunroof shattered 11Wipers 11Harsh shifting 10Windshield crack 10Brake failure 9Fire or smoke 9Power steering loss 9Key fob 8Seat belt 8Sudden acceleration 6Transmission failure 6CVT failure 5
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