2019 Honda Accord Hybrid fuel/propulsion system problems

“Vehicle stalled and had a power system failure requiring driver to pull off to the side of a road that blocked traffic. The acceleration/drive function no longer worked. The vehicle displayed a POWER SYSTEM PROBLEM message on the dashboard and showed "DO NOT DRIVE". Vehicle was towed to HONDA dealership and they confirmed the fuel pump needs to be replaced. The vehicle had a replacement of the fuel pump in 2022 as part of a prior recall, but the same component is responsible for this situation four years later. Dealership is quoting 1,931 for repairs and Honda America is refusing to cover repair as they claim the 2022 replacement is not related to this incident. They will not confirm whether the parts supplier in 2022 were changed to account for the expanded recall that is part of an ongoing lawsuit settled in 2026 (to be determined when finalized).”

“City street driving speed < 35-40 mph, engine began rough idling at stop light after traveling just 1/8 mile. After driving less than 1 mile on level ground, engine slowed and would not accelerate above 20 mph. After another mile or so, increasing uphill grade caused speed to slow to 12-14 mph. Stepping on gas caused car to slow down even more, with shaking and jerky stop-start of vehicle. Maintaining 10-12 mph permitted vehicle to continue uphill climb for a few more miles so I could reach home. Downhill coasting was smooth with no gas pedal acceleration. Overnight parked in garage, and no problems driving vehicle to local independent auto mechanic. They were able to duplicate problem after 2 days and multiple test drives. Diagnosed permanent and temporary engine codes: misfires of cylinders 1 and 4 with ignition coil malfunction, misfires of cylinders 1, 2, 4, and random misfires. Also permanent codes: antilock brake ECM Failure, electric power steering vehicle stability assist System Malfunction, electric servo brake electric power train System Malfunction. Mechanic removed coils and spark plugs, found cylinder 4 has moisture. Coils, plugs cleaned and…”

“My dash is a christmas tree, been to 3 shops. Many codes are popping up ans showing needs turbocharger. Honda wants almost 3000 to fix. Drives fine but so many lights. I have tons of codes popping up. So many other car owners with same issue.”

“Emission system control error please see your dealer do not accelerate at high speeds, ACC control, module error, brake system failure, error, lane control, assistance, failure, numerous lights illuminate on dashboard 7 to 10 error codes all at once. Vehicle was taken to Diagnosed and found turbo Charger for engine acceleration was faulty, spark plugs changed, 4 coils and cam shift sensors2 total. Over $3000 later, the vehicle is still doing the same mention above, including when stopped and acceleration at slow or high speeds vehicle jerks. Only 158,000 miles on a 2019 all fluids have been serviced and changed on time with no leaks.”

“If you are having this problem where every warning indicator is illuminated, codes scanned but no clear solutions to the “Christmas Tree dash board This is an ongoing issue with the 10th generation and there is no definitive “fix” recognized by Honda. Sometimes it is the battery, the alternator, the head gasket, the ECM, injectors….the list goes on and on. Sometimes the repair fixes the issue, but based on research, the issue typically comes back shortly after the service department throws another part at the problem.”

“In December 2024, all of the lights on my dashboard came on & my car would not accelerate. The code indicated that it was a "Cylinder 2 Misfire." I replaced the ignition coil for cylinder 2 but my car continued to have the same issues. I had all 4 ignition coils replaced and all 4 spark plugs. In March 2025, all of the lights on the dashboard came on again with the car not accelerating properly. I had it looked at again, was told that it was a "Cylinder 2 Misfire" again but all 4 ignition coils were working properly. A spark plug was replaced at that time. Then, in May 2025, the car did the same thing with all of the lights coming and the car would not properly accelerate. The car again read that there was a misfire with "Cylinder 3" but all of the ignition coils worked properly. I had the fuel injectors replaced and another spark plug replaced. The car didn't even make it 24 hours before all the lights came on again. The RPMs in the car now go past "3" but will not accelerate & shift gears. The Honda Dealership has advised me that the head gasket needs replaced. My car has 74,000 miles on it. I had it inspected April 2024 with no head gasket issues & the car…”