2018 Honda Accord Hybrid: engine stalls while driving

Filed Apr 18, 2025 · Engine · CA

Subject: Safety Complaint – Premature Head Gasket Failure in 2018 Honda Accord Hybrid (VIN: [XXX] ) Representative, I am submitting this letter as a formal complaint regarding a serious and premature mechanical failure in my 2018 Honda Accord Hybrid (VIN: [XXX] ). At approximately 96,000 miles, the head gasket failed, resulting in major engine problems and potentially unsafe vehicle performance. I am the original owner of this vehicle and have maintained it consistently in line with Honda’s recommended service intervals. The engine has never been overheated or misused, yet the head gasket has failed much earlier than expected for a modern vehicle, especially a hybrid model. After researching online, I have found multiple reports of similar issues involving 2018 Honda Accord models experiencing premature head gasket failure, many of them under or near 100,000 miles. I am concerned that this may point to a widespread defect that could compromise the reliability and safety of these vehicles. A sudden head gasket failure can cause the engine to overheat, lose power, or even stall — all of which present potential risks to the driver and passengers, especially at highway speeds. I respectfully request that the federal safety agency investigate this issue further to determine whether a safety-related defect exists and if a recall or manufacturer action should be issued. Thank you for your attention to this matter. Please feel free to contact me if any additional information is needed to support the investigation. Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Feb 14, 2025 · Fuel system · CT

DEFECTIVE RECALLED-REPLACEMENT FUEL PUMP? the federal safety agency Campaign # 23V858000 “Fuel pump failure can cause engine stall while driving, increasing the risk of a crash.” My 2018 Honda Accord Hybrid had gotten 50 mpg in September & October of 2024 – as it had been getting consistently, reliably for the past six years. Also, I have Always driven 545 miles per tank of gas consistently, reliably for the past six years. My original fuel pump, which was recalled (the federal safety agency #23V858000), NEVER failed and operated perfectly efficiently for six years. In December 2024 I observed the federal safety agency fuel-pump-recall and had the “perfect” original fuel pump replaced. As soon as the “New” fuel pump was installed at the dealership, my MPG dropped to 39mpg AND miles-driven-per-tank of gas dropped to 445 miles! Shocking! My 2018 Accord Hybrid lost 100 miles of driving Range, and mpg dropped to non-hybrid performance! This leaves me to question the SAFETY of the NEW Recall-Replacement fuel pump. Also, since the “New” replacement Fuel pump was installed, my High-Voltage Lithium-Ion Battery Pack has been “kicking-in” more frequently to assist the less efficient new fuel pump. This causes the gas engine to rev longer at high rpms whenever I start the car in order to constantly recharge the HV Lithium Ion Batteries that must assist the less efficient New fuel pump . It appears to be a precarious cycle of decline for both the fuel pump and HVLI batteries! Help! I would like the federal safety agency to determine: 1.Is the replacement fuel pump “failing” from the time of installation? 2.Was a “new” fuel pump actually installed, or was a “defective part replaced in the original recalled fuel pump? 3.Is the replacement fuel pump not designed technologically as the original fuel pump? 4.How SAFE is the “NEW Fuel Pump”? 5.Are other Honda Hybrid owners who had their fuel pumps replaced under # 23V858000 complaining of poor performance? Is this a serious indication of rapid replacement (New) fuel pump failure?

Filed Jun 25, 2024 · Fuel system · 49,591 miles · IL

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 that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated while driving at an undisclosed speed, the vehicle stalled and was jerked. There was no warning light illuminated. The dealer was made aware of the failure but confirmed that parts were not yet available. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 49,591. Parts distribution disconnect.

Filed Feb 27, 2024 · Fuel system · 100,000 miles · IN

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 that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that while driving at an undisclosed speed, the emission system error warning light illuminated. Additionally, the vehicle stalled and lost motive power. The contact stated that while depressing the accelerator pedal, the vehicle would not accelerate above 30 MPH. The vehicle was taken to the dealer and the contact was provided with a fee for a diagnostic test. The contact declined to pay the diagnostic fee and the vehicle was left at the dealer. The dealer was made aware of the failure but confirmed that parts were not yet available. The vehicle was not repaired. The manufacturer was made aware of the failure but did not assist. The failure mileage was approximately 100,000.

Filed Feb 6, 2020 · Fuel system · 16,650 miles · RI

When going around a corner and the switch from electric to gas (hybrid vehicle) occurs the car seems to stall and consequently looses speed for a second or two. This happens when starting from a stop and at highway speeds.