2021 Honda Odyssey Engine Problems

After driving for 2 hrs in single digit temperatures I entered the on ramp to interstate freeway. I lost power, couldn’t accelerate further and the Check engine light was flashing. I pulled over on the 4 lane interstate, turned off my car and restarted. CEL went away. This is the 2nd time in 2 Winters this has occurred during cold weather. Both on exit/entrance ramps when trying to accelerate after turning with traffic behind me. This can only be reproduced in specific situations and diagnostics are not stored. Honda has a service bulletin on this issue 24-085. I feel it should be covered on all vehicles, regardless of warranty status due to the safety risk.

While stopped at a stop light at an intersection in our 2021 Hond Odyssey, the idle auto off feature kicked in, and then as we let off the brake and went to hit the gas to move forward the car shut off completely. The car had to be restarted by applying the brake and pressing the start/stop ignition button. This is not the first time this has happened with this vehicle. This also happened a series of times in 2023 and Honda performed a series of software updates, replaced the battery, and replaced a sensor on the battery. However, now two years later the idle auto off issue occured again.

In stop and go highway traffic. Engine cut off when at a stop during "Ecoboost." Had to turn off car and restart. Was able to restart with no problem. Full tank of gas. Fresh oil. No error messages before and after

The contact owns a 2021 Honda Odyssey. While the contact’s wife was driving approximately 70 MPH, the vehicle began to lose automotive power with several unknown warning lights illuminated. The vehicle was driven to the shoulder of the roadway before stalling. The vehicle was unable to be restarted and was later towed to the local dealer. The cause of the failure was not yet determined. The manufacturer was notified of the failure. The failure mileage was 72,000.

My Honda Odyssey is experiencing an issue where it intermittently fails to restart automatically after coming to a stop and engaging the idle stop feature. Despite following Honda's recommendations, which included applying Service Bulletin 23-008 (updating the PGM-FI Idle Stop Software) and replacing the battery, the problem persists. I've also had the vehicle inspected at two different dealerships, with no resolution. I discovered Service Bulletin 23-009 on your website, which directly addresses this exact issue and extends the warranty for the Ridgeline, Pilot, and Passport models. Given that my Odyssey shares the same engine, it's concerning that it's not included in this bulletin. I believe it's unfair that I'm being forced to pay dealership fees to diagnose and fix a safety issue that Honda has already acknowledged and addressed for other vehicles with the same engine. I urge you to reconsider the exclusion of the Odyssey from Service Bulletin 23-009 and provide a solution that doesn't burden owners with unnecessary costs.

HI THE VEHICLE SHOWS SPEED LIMIT OF 70 IN 25 OR 40MPH ZONES. THE VEHICLES SYSTEM KEEPS GOING OFFLINE EMERGENCY BRAKING AND COLLISION. EVERY TIME I TAKE TO HONDA DEALER I AM BEING TOLD TO GO SEE WHERE THE CAR WAS PURCHASED AND THEY CAN'T FIND A ISSUE.