Table 1 shows one common vehicle speed control related problems of the 2024 Honda Accord.
| Problem Category | Number of Problems |
|---|---|
| Vehicle Speed Control problems |
On xxx, about 8:30 a. M. , in clear, sunny weather, I was turning my 2024 Honda Accord sport hybrid into a marked parking space. My foot was off the accelerator; I applied light brake pressure while the vehicle moved under 5 mph. Without warning, it suddenly and spontaneously accelerated at high speed. Within seconds it drove over a concrete parking stop, traveled through dense landscaping, and collided into a palm tree that prevented it moving forward. I immediately powered it off. The airbag did not deploy; no warning message preceded the acceleration. Before repair, germain Honda scanned the vehicle; may 28 invoice the shop foreman and a Honda district parts & service manager inspected it. The report’s page 1 checklist all items marked green "satisfactory" and no damage noted in vehicle diagrams. This is not reconciled with the packet's lighting "ng" and b1036 results or estimates documenting a shattered right headlamp. The invoice attributes many codes to headlight/bumper impact but identifies neither the codes nor the basis. Native hds data was not provided. Pre-repair records from germain Honda (may 28), caliber/protech (xxx), and crash champions (xxx) record dtcs/faults involving propulsion/powertrain, braking, network, steering, driver assistance, restraint, and body controls. They do not establish when findings arose or whether any caused or contributed to the event. After repair, on xxx, Honda of [xxx] reported zero dtcs. The precise cause remains unknown. I believe speed control, brakes, and fuel/propulsion system most likely caused or contributed to the sudden spontaneous acceleration, complete loss of control, crash, and vehicle damage. If this same event occurred at a stop sign or stoplight, significant injuries and potential fatalities would have occurred to myself, or any pedestrians, animals, and vehicles in its path. Crash-scene photos and video, diagnostic reports, estimates, towing and service records preserved and uploaded information redacted pursuant to the freedom of information act (foia),.
Vehicle was taken to Honda of round rock for the integrated control module (icm) recall (NHTSA recall 25v785). The dealership performed partial service but stated a 'gateway' part is on backorder. Since this service, the vehicle has been returned to us with a non-functional speedometer, non-functional speed sensor, no a/c/defrost, and multiple disabled safety sensors. Driving without a speedometer is a severe safety hazard. The manufacturer has provided no timeline for the part and refused a loaner, leaving us with an un-roadworthy vehicle as a direct result of a recall repair attempt.
While engaging adaptive cruise control on highway speed, all the sudden I lost the sight of the car in front of me on the display, almost causing a collision, I also lost the correct waze display. After I stopped the car, shut off engine, then restart the car, re-engaging adaptive cruise control, both problems disappeared. This is an intermittent problem, it should be ASAP investigated then recalled due to huge safety concern !.
Component/system: collision mitigation braking system (cmbs) or related software. Vehicle available for inspection. Safety risk: vehicle brakes or decelerates unexpectedly during normal driving, risking rear-end collisions. Most recent incident on August 23, 2025, required override by pressing accelerator and shifting to neutral in traffic. Reproduction: dealer could not replicate issue during may 16, 2025 visit. No diagnostic codes found. Radar and braking systems reported as “operating normally. ” a second evaluation occurred after September 5, 2025, with no resolution; issue persists. Inspection: inspected by Honda dealership twice—on may 16, 2025 (invoice #488382) and again after September 5, 2025. No third-party inspections. Symptoms: braking occurs in sport, normal, and econ modes. Happens when accelerating from stop or easing off accelerator. Brake light activates falsely. No warning lamps or messages prior to failure. Issue has occurred 10+ times over the past year. Related software issues: radio failure (resolved via software update). Clock shows incorrect time. Apple carplay fails to connect until restart. Navigation compass shows concentric circles.
Purchased new delivery date: August 13, 2024 this is an ongoing issue, car indicates radar needs cleaning. Each time I pull off road to check radar no such cleaning is needed, it's clean. Once the car indicates that the radar needs cleaning I loose multiple functions, cruise control, lane assist etc. Attached picture.
While driving the vehicle, usually while passing another vehicle, it slams on the brakes suddenly and decelerates rapidly. I suspect it has something to do with how it reads it's surroundings. When it happens, which is without warning, the brake light comes on the dash. It has happened multiple times but recently it was a close call with another vehicle behind me on the interstate. Which is why I'm taking the time to report this. I have not had it inspected.
2023 and 2024 hybrid Accord vehicles liberally activate brake lights while cruise control is active under even the slightest level of deceleration creating an appearance of a “brake check” when there is no brake check. A traditional car’s cruise control, for instance when set to 60mph allows you to depress the accelerator, speed up to 65mph to pass a vehicle, and then release the accelerator. The car then slows down naturally and begins controlling at 60mph. The deceleration is gentle and the brakes are not applied and the brake lights do not illuminate. The Accord hybrid under the same conditions will apply some level of regeneration to slow the vehicle and also activate the brake light to vehicles behind. While it’s understandable that the brake light would be illuminated if substantial regeneration is being applied, the brake light illuminates under even the slightest deceleration creating an unnecessary hazard. This can occur if the car is slowing down from only 2mph above the set point. Brake lights illuminate although the amount of regeneration being applied is negligible. It can also happen coming over the crest of a hill on a gentle downslope even with no prior depression of the accelerator. This is a serious deficiency and incorrect behavior. The brake lights should only illuminate under substantial regeneration or application of the brake pedal.