2026 Honda Passport Electrical system Problems

“Today, while backing from my driveway into our residential street, I came to a complete stop and placed the vehicle's transmission from Reverse to Drive and when doing so, the vehicle shut itself off, put itself into park and engaged the parking brake. I was able to re-start the vehicle and it operated as usual. We have an appointment scheduled with our local Honda dealership on 05/19/25 to inspect the vehicle.”

“Like many others have reported on the internet, I am now seeing the TT04 message on the dashboard inidicating that a software update was interrupted and I must see the dealer. This is concerning in that this bug has been reported for years and Honda has failed to find a solution. What exactly is not working in the car with a failed update? What must a dealer do to fix the update and is the car safe until then? No answers from Honda in two years.”

“Our 2026 Honda Passport TSE suddenly stalled twice in active traffic intersections in Albuquerque, NM under acceleration and during a left turn, causing a sudden loss of motive power and a severe safety hazard and a potentially life threatening situation. Telemetry logs from an aftermarket GPS device installed in my vehicle captured a catastrophic voltage drop down to 10.886V during the incident, which electrically blinded the ECU and prevented the vehicle from storing a diagnostic trouble code. …”

“My 2026 Honda Passport TrailSport Elite has twice applied its brakes on its own, with no obstacle, vehicle, or hazard in front of me to justify braking. On July 13, 2026, at approximately 5:36 p.m., I was driving in evening traffic when the vehicle suddenly braked hard on its own. Nothing was in front of me. The car behind me nearly rear-ended me and had to brake sharply to avoid a collision, and the driver reacted with road rage. On July 16, 2026, at approximately 6:03 p.m., my young son was in the vehicle with me. …”

“I am on my second 2026 Honda Passport. The first one was taken to dealership 6 times (once at red rock Honda in Colorado and 5 times at Cleo bay in Texas) for a failed part in the steering wheel. The airbag and other parts were replaced and would fail again afterward. I had to replace it with another of the same vehicle because of so many problems and no suitable repair. My new 2026 Honda Passport started having same issue. I took it in and they replaced the whole steering wheel and then after about a month it failed again. …”