2025 Honda OdysseyRecalls, problems, MPG & safety

“The vehicle's Auto Idle Stop (AIS) system engaged normally when coming to a complete stop at an intersection, shutting off the engine to save fuel. However, when attempting go through the intersection after the light changed to green, the engine failed to restart automatically. The vehicle completely lost power in an active lane of traffic, creating a safety hazard. The vehicle had to be shifted into park and manually restarted to clear the roadway. This failure appears directly related to NHTSA Engineering Analysis EA25004 regarding Honda/Acura Auto Idle Stop restart failures.”

“The Auto Idle feature has caused my car to stall multiple times. This is extremely dangerous because it always happens when I am in populated areas- sometimes at red lights and another time in stop/go highway traffic. My car is 1.5 years old and this keeps happening more and more frequently. I am very concerned that one of these times I am going to be rear ended because traffic starts to go, I let off the brake to drive and then my car stalls. I then have to turn my vehicle off completely and then back on to get it to not have issues. I do get a warning saying to depress the break and press the start button. Sometimes I get a red battery light on the dash.”

“The vehicle is experiencing an intermittent but highly dangerous defect involving the factory-installed Auto Idle Stop system. When the vehicle comes to a complete stop at intersections, traffic lights, or in stop-and-go traffic, the Auto Idle Stop system engages as designed and shuts off the engine. However, upon releasing the brake pedal to accelerate, the engine fails to restart automatically. Instead of seamlessly restarting, the vehicle completely stalls in live traffic. The dashboard instruments remain on, but the engine drops completely out of operational mode. To recover propulsion, the driver must shift the vehicle entirely into Park, press the start/stop button to cycle the ignition completely off, and then manually restart the engine. This creates an immediate and severe safety hazard. The sudden, unprompted loss of propulsion leaves the vehicle completely stranded in active intersections and roadway lanes, exposing the occupants to an imminent risk of a rear-end collision. The restart delay forces the driver to perform multiple steps to reset the vehicle while traffic builds around them. The manufacturer is aware of similar systemic restart failures…”