I had the front passenger side airbag recall completed on my vehicle on July 1, 2026. In August, approximately August 14 error messages started occurring whenever I cranked my vehicle. The error messages were collision mitigation system problem, road department mitigation system problem, auto high beam problem, adaptive cruise control problem, lane keeping assist problem. I was able to have the vehicle inspected at Stokes Honda in Beaufort and was told that it was the front facing camera failure. I have owned this vehicle for 2 years with no issues.
2021 Honda Pilot: adaptive cruise control problems
34 of the 459 complaints about the 2021 Honda Pilot describe adaptive cruise control problems.
- owner complaints
- 34
- of this car's complaints
- 7%
- typical repair cost reported
- $1,900
- recalls
- 3
Is there a fix? There are 3 recalls for this area of the car. See below
Adaptive cruise control problems by model year
What owners say
A cascade of warning errors suddenly appeared in my 2021 Honda Pilot. Lane keeping assist, adaptive cruise control, collission mitigation system, auto high bean, and road departure mitigation problem. The brake system light is also lit up. My mechanic said it is a "millimeter wave error" caused by one of the front cameras. After researching this, it seems that this is a common problem, and there is an active lawsuit.
The entire ADAS suddenly failed. the vehicle started cycling through all warning indicators (adaptive cruise control problem, abs problem, lane keep assist problem, brake mitigation system problem etc) brought it to Honda today and they confirmed that the "multi purpose camera/millimeter wave radar unit with aiming" had failed and needed to be replaced. Honda charged $1764.14 for all work to fix this on 9/15/2026
Front safety camera no longer works which has disabled the lane keep assist, automatic cruise control, brake system, and road departure mitigation system. This is a safety hazard.
My 2021 Honda Pilot displayed a U3000 diagnostic trouble code, indicating an internal electronic failure of the front-facing multipurpose camera that operates the vehicle's Honda Sensing safety systems (Collision Mitigation Braking System, Lane Keeping Assist System, Road Departure Mitigation, and Adaptive Cruise Control). As a result, these safety systems became inoperative. I took the vehicle to an authorized Honda dealer, who confirmed the U3000 code and quoted approximately $2,000 to replace the camera unit. I have since learned this is a widely reported failure across multiple Honda and Acura models (Pilot, Odyssey, CR-V, Accord, Civic, HR-V, Clarity, RDX, MDX) and is the subject of a proposed class action lawsuit alleging Honda knew of the defect and failed to disclose it or issue a recall. I am filing this report to document the failure and its safety impact.
The vehicle’s driver‑assist and collision‑avoidance systems began failing simultaneously. Multiple warnings appear on the dashboard every time the vehicle is started, and the cruise control system has stopped functioning entirely. Adaptive Cruise Control cannot be disabled, preventing the use of standard cruise control. Collision Mitigation System Problem Adaptive Cruise Control Problem (ACC) Lane Keeping Assist Problem (LKAS) Road Departure Mitigation System Problem Auto High-Beam Problem The failure of one component impacts multiple vehicle features, the ability to maintain safe following distance, avoid collisions, stay within lane boundaries, and properly manage headlights. The loss of cruise control functionality also affects long‑distance driving safety and consistency. These systems are designed to prevent accidents; their simultaneous failure represents a significant safety hazard. Dealer inspection indicates repairs costing thousands of dollars, often involving replacement of sensors, radar units, or wiring harnesses. No recall or service bulletin has been provided to address this widespread issue. Many Honda owners have reported identical failures on online forums and owner groups. The pattern suggests a systemic defect affecting Honda’s driver‑assist safety systems across multiple models and years. I am requesting that the federal safety agency investigate this issue as a potential safety defect affecting Honda vehicles. The failure of multiple collision‑avoidance and lane‑keeping systems at once poses a serious risk to drivers, passengers, and others on the road.
My Honda has recently began displaying ADAS Failure where none of the features work including cruise control. I took to a mechanic and they displayed code U3000. This seems to be a common issue that Honda is not addressing. The fee to repair is over $1500 and the car is less than 5 years old. This is a safety issue.
I am having these problems with my 2021 Honda Pilot Touring causing intermittent sudden braking. The dealership is quoting me a lot of money to fix them. Collision Mitigation System problem Road Departure Mitigation System Problem Auto High Beam Problem Lane Keep Assist Problem Adaptive Cruise Control Problem These problems should not be occurring to a an expensive vehicle worth over $45,000 for no reason. The dealership mentioned that they are caused by a failed battery fan.
2021 Honda Pilot with 9,800 miles. Failed VSA Modulator directly related to the braking system. Warning lights: Vehicle stability assist, trailer stability assist, collision mitigation system, adaptive cruise control problem. Problem confirmed by Pensacola Honda Service Center and awaiting repair assistance from American Honda as they refuse to offer goodwill credit for repair due to being out of warranty, despite extremely low mileage and excellent condition of vehicle.
About a month ago, I started my Pilot and the dash lit up. The adaptive cruise control, emergency braking, lane keeping assist, Lane departure, forward collision warnings all flashed on the dash- no previous warnings. Subsequently, the cruise control will not work at all. I had the system scanned by a Honda certified mechanic and it showed and internal cameral failure. This is a known issue across many Hondas and is a very costly repair at close to $2000.
I purchased my Honda Pilot 2021 5 years ago. Currently still making payments on it. The Collison Mitigation system warning sign came up on my dashboard about 1 year ago. After that warning sign came on 4 others popped up. Road Departure Mitigation system, Auto high-Beam problem, Adaptive cruise control problem, and lane keeping assist problem. Having all these warning signs come pop up on dashboard is very distracting while driving. Non of these controls are working and I have taken it to Honda to do an inspection. Since, its out of warranty I have to pay out of pocket $2,137.63 to get multipurpose camera unit replaced. Let alone this vehicle is still not paid off. I've also had issues with the starter shutting off while driving. It had a recall and I did get it replaced but I'm still having issues. This is a serious safety problem due to it shutting off while on the street. I been in life threating situations due to this problem. Honda needs to make sure there vehicles are safe for customers. T
Braking system and cameras defective. Vehicle will flash BRAKE when nothing is in roadway. This will also cause vehicle to hard brake. When on interstate, cruise control no longer functions properly due to camera sensors reading a vehicle is in front of my vehicle when there is no other vehicle near. This causes braking system to activate and/or slow the cruise control down. This is a major safety risk for everyone involved, especially my children in the vehicle. This is a known Honda issue. This needs remedied before someone gets hurt and a lawsuit ensues. Fix the braking system and cameras!
Related recalls
Back over prevention: display function
- What is wrong
- Honda (American Honda Motor Co.) is recalling certain 2018-2023 Odyssey, 2019-2022 Pilot, and 2019-2023 Passport vehicles. Due to a faulty Media Oriented Systems Transport (MOST) communication coaxial cable connector, the rearview camera image may not appear on the display. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
- Risk
- A rearview camera that does not display an image can reduce the driver's rear view, increasing the risk of a crash or injury.
- Remedy
- Dealers will replace the MOST cable harness and install a straightening cover over the vehicle cable connector, free of charge. Owner notification letters were mailed July 24, 2023. Owners may contact Honda customer service at 1‑888‑234‑2138. Honda's numbers for this recall are EEL, ZEM, and SFC.
Recall number 23V431000 · Recall details
Back over prevention: sensing system: camera
- What is wrong
- Honda (American Honda Motor Co.) is recalling certain 2018-2020 Odyssey, 2019-2020 Passport, and 2019-2021 Pilot vehicles. Incorrect instrument panel control module software can cause the instrument panel to not display critical information, such as engine oil pressure, speedometer, and gear selector position until the next ignition cycle. Additionally, it can prevent the rearview camera image from displaying. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 101, "Control and Displays" and 111, "Rearview Mirrors."
- Risk
- Operating a vehicle without a functioning instrument panel or rearview camera display increases the risk of a crash.
- Remedy
- Honda will notify owners, and dealers will reprogram the instrument panel control module software, free of charge. The recall began September 23, 2020. Owners may contact Honda customer service at 1‑888‑234‑2138. Honda's number for this recall is T89.
Recall number 20V439000 · Recall details
Back over prevention: sensing system: camera
- What is wrong
- Honda (American Honda Motor Co.) is recalling certain 2019-2021 Pilot, 2019-2020 Odyssey and 2019-2020 Passport vehicles. Incorrect central network software programming may cause several errors to occur that can delay or prevent the rearview camera image from displaying. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rearview Mirrors."
- Risk
- A delayed or inoperative rearview camera display can reduce the driver's view of what is behind the vehicle, increasing the risk of a crash.
- Remedy
- Honda will notify owners that updated software is available. Owners have the option to either follow the mailed instructions to download and update the software for free, or visit a dealer to have the software update performed, free of charge. The recall began September 23, 2020. Owners may contact Honda customer service at 1‑888‑234‑2138. Honda's number for this recall is Y7Y.
Recall number 20V440000 · Recall details
Questions about the 2021 Honda Pilot adaptive cruise
Is adaptive cruise control problems a common problem on the 2021 Honda Pilot?
34 of 459 owner complaints about the 2021 Honda Pilot (7%) mention adaptive cruise control problems. The model year with the most reports is 2019.
How much does it cost to fix adaptive cruise control problems on the 2021 Honda Pilot?
Owners who mentioned a price put the repair at about $1,900 (median of 9 complaints that include a dollar amount). Costs vary with mileage, warranty and where the work is done.
Is there a recall or service bulletin for this on the 2021 Honda Pilot?
There are 3 recalls and 0 service bulletins for the same area of the car. Check them below with your VIN.
Other symptoms on the 2021 Honda Pilot
Collision warning 34Lane assist 34Stalling 34Backup camera 30Start-stop 25Headlights 21Check engine light 18Engine failure 18Won't start 16Knocking 13Loss of power 12Warning lights 12Screen failure 8Jerking 8Airbag light 7Hesitation 7Fuel pump 6Phantom braking 6Sunroof shattered 6Misfire 5
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