NHTSA Complaint #11475284 — 2017 HONDA PILOT

The auto idle stop function caused the vehicle to stop running, needing a full shutdown and restart. This happened on busy roadways, and it has happened two times with this vehicle, one time each in different years. I think the first time was in 2021 and the second was definitely in June 2022. We have had this vehicle into a dealership multiple times attempting to resolve the issue. Each time the battery has been replaced due to low voltage, and they were able to reproduce the issue at least once. The most recent time I was informed that Honda released a service bulletin recommending a change to engine compression that may be straining the battery when restarting the engine, but I am currently waiting on Honda to decide if they will cover the cost of this service before agreeing to it. We are currently operating the vehicle with the auto idle stop disabled. Other symptoms included the electrical system blinking off and on when restarting the engine after a stop. This was reproduceable after 3-4 consecutive stops in a short period of time, such as urban driving with traffic lights. This first appeared 3-6 months after a new battery is installed.