2021 Honda Passport: adaptive cruise control problems

Filed Jul 18, 2026 · Driver assistance · CO

The multipurpose front camera on my 2021 Honda Passport failed without warning, causing mutliple Honda sensing safety systems to become inoperative. Warning messages appeared indicating failures of the collision mitigation braking system, adaptaptive cruise control, lane keeping assist system, road departure mitigation system, and other driver assistance features. The vehicle has not been involved in a front end collision and the camera failure was diagnosed by a Honda dealership as requiring replacement of the multipurpose camera assembly. This is a significant safety concern because the failure of a single component disables numerous advanced driver assistance systems that are designed to help prevent crashes. I have learned that similar front camera failures have been reported by owners of other Honda models using comparable Honda sensing technology. Because this failure affects critical safety systems and appears to be more than an isolated incident, I am submitting this complaint so it can be documented and investigated.

Filed Sep 7, 2025 · Driver assistance · CA

When I turn on the car, the "BRAKE SYSTEM" warning light appears, along with several alerts that disable all Honda safety features, including: 1. Road Departure Mitigation System Problem 2. Auto High-Beam Problem 3. Adaptive Cruise Control Problem 4. Lane Keeping Assist Problem 5. Collision Mitigation System Problem After taking the vehicle to a Honda dealership, the diagnosis was a failure of the Multipurpose Camera Unit and/or the Millimeter Wave Radar. Unfortunately, this is a common issue affecting several Honda models, including the Clarity, Fit, Pilot, Passport, and CR-V. Due to high demand and limited supply, the camera unit is currently sold out nationwide with no estimated restock date. Repairing this issue is expected to cost approximately $2,600, with no set timeline for when the parts will become available.

Filed May 1, 2024 · Acceleration, Brakes · MI

I have encountered two types of brake issues: 1) my vehicle seems to flash BRAKE occasionally when oncoming vehicles pass by for no reason - they are not entering my lane or doing anything that should cause the message to flash. The vehicle type does not seem to matter - they have been old and new models, and have been both cars and trucks. My vehicle has only visually warned, but does not engage brakes, so no further safety issue is involved. It has done it frequently on some days and then none for awhile. We have tried to make note of vehicle type and model for consistency, but have not found any. 2) If my vehicle has its cruise control on (which is often) and a vehicle in front of me moves into a left-turn lane to turn - often with plenty of notice - my vehicle will engage it’s brakes and slow down even though there is no danger of hitting the other vehicle. So long as I take it out of cruise control, it will continue on driving. I suspect that if cruise control is not disengaged, it could fully brake and cause a bigger issue of an injury or accident.

Filed Oct 9, 2023 · Brakes, Driver assistance · SC

When the passport is in cruise control I have been driving up a very steep mountain and have had the car slam on brakes with no indication to the cars behind me or me intially causing everyone to come to a halt going up a mountain with a 9% incline. I realize you can adjust the distance but it still gives no warning and it is not as if you are tailo the car in front. I turn in my subdivision daily and if I let off the gas which I have to I the neighborhood and not have to break at five or ten mph something underneath feels as if it is catching like a bike break too close it scrubs. The final thing. I have started the car remotely many times. I have done it twice in parking lots and it has jumped forward . Had someone been in from of the car standing it jumped hard enough to hit someone. Or it the car facing mine had been closer it would have hit that car as well. Thank you

Filed Apr 14, 2022 · Driver assistance · CO · crash

My son was driving on the highway with the adaptive cruise control on. The car in front of him stopped suddenly. The dashboard screen system flashed the word "brake" but not in enough time for him to react. He braked hard but he still rear-ended the car in front of him. The problem has not been reproduced or confirmed because the car is no longer drivable. It is sitting at my house waiting for repair of $7,700 damage. I thought the "Honda Sensing System," the combination of the adaptive cruise control and emergency braking, was supposed to bring the car to a halt. My son and his 3 friends were put at risk. I'm very disappointed in the car.

Filed Apr 25, 2021 · Driver assistance · 150 miles · MD

Hello I've had my 2021 passport awd for only a week and have noticed it pulls noticeably to the right. This even happens when " the lane keep assist" is switched off. It is a constant struggle to keep it from drifting into the right lane and other cars. This happens on all types of roads but is most noticeable of highways. The pull is so strong that it makes the lane keep assist system (lkas) unusable. When using lkas on cruise control the vehicle keeps drifting into the shoulder of the road and even crosses the line. I went to the website and found that honda is aware of this issue on the 2019 passport (off-center steering /pulling) and has sent communications about it's investigation to it's dealerships. The alignment being off on a factory car that is built for off-roading is highly irregular. For comparison, my honda hr-v which I had for 3'years has never had any alignment issues..