2018 Honda Accord · symptom sheet
Adaptive cruise or lane keeping misbehaves
- 103owner reports
- 20,613median miles
- 2involved a crash
Newest report Aug 21, 2026 · checked Oct 2, 2026
447 of the 1,883 complaints on this car are about collision avoidance. 103 of those describe driver assist.
Tick what matches of 103 reports
Driver assist on other Accord years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2014, 2015, 2016, 2017, 2020, 2021, 2022, 2023, 2024, 2025, 2026.
What this problem usually is
These reports come from drivers whose assistance systems did something they didn't ask for. Adaptive cruise switches itself off, or brakes for a car that isn't there. Lane keeping tugs the wheel toward the line, or a "sensor blocked" message appears on a clear day. Because both systems can brake or steer, owners tend to file them as safety complaints, and NHTSA files them under speed control, lane departure or forward collision.
What got replaced
Owners who name the part that was replaced mention the software (7 reports), the radar (6 reports) and the camera (5 reports).
Recalls and investigations
No recall on collision avoidance covers the 2018 model year as of Oct 2, 2026.
NHTSA investigations into collision avoidance on the Accord
Inadvertent automatic emergency braking. Open.
Inadvertent automatic emergency braking. Closed apr 18, 2024.
Stalling. Closed jan 31, 1994.
Fuel system venting. Closed nov 30, 1989.
Fuel system venting. Closed nov 16, 1988.
Accord sudden accel-see dp87-026. Closed mar 30, 1988.
Sudden acceleration. Closed jul 21, 1987.
Sudden acceleration. Closed nov 3, 1986.
When it happens
The middle half of failures fell between 6,853 and 45,000 miles, from the 55 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 2 service bulletins or notices for the 2018 Honda Accord that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
Service News - If an Adaptive Cruise Control System Problem comes back on when the vehicle is driven in freezing conditions, inform the customer it is likely due to snow or ice buildup on the radar.
ServiceNews Article - When returning the vehicle to the client, inform them that if the message Adaptive Cruise Control System Problem comes back on when the vehicle is driven in freezing conditions, it is likely because of snow or ice buildup on the radar.
What owners wrote
“Well to start I had to replace my head gasket already last winter at 59K miles and for awhile now I had warning lights on my dash for CMBS system failure and cruise control/steering wheel controls donât work besides the ones for music. No lane assist, none of those safety features work at all and havenât for awhile”
Filed Jul 13, 2025 · 59,000 miles
“On July 31st, 2022 at approximately 1135AM Central Time on I-90 westbound near Dekorra, WI when passing a tow truck in the middle lane as I was in the right most lane the Automatic Emergency Brake system sounded visual and audio alerts urging me to a *Brake Now*. Adaptive Cruise Control was engaged at approximately 73mph.”
Filed Aug 11, 2022
“Twice while driving on 110S in morning rush hour traffic, I get a lane departure warning and the car starts braking. I am not sure if the system is designed to do that but it was a bit scary.”
Filed Aug 6, 2022
“I got a Collision Mitigation Braking System warning while driving at a high speed > 60 mph on the Interstate with adaptive cruise control turned on. The system suddenly cuts off speed and lost cruise control. I have to stop on road side, turn off the car and restart it for the warning go away.”
Filed Jul 19, 2022
Should you keep driving it?
This page can't tell you that. 2 of 103 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Taking it to a shop? How to describe this problem so it gets found
Other problems on this car
- Engine overheats or leaks coolant 349 reports
- Check engine light or misfire 282 reports
- Brakes grind, pulse or wear early 255 reports
- Engine stalls or loses power while driving 250 reports
- Brakes on its own (automatic emergency braking) 228 reports
- Engine failure, knocking or rod bearing 167 reports
- Fuel pump failure 155 reports
- Multiple warning lights come on at once 124 reports
- Infotainment, screen or backup camera fails 109 reports
- Turbo failure or loss of boost 101 reports
- Forward collision warning goes off or the camera drops out 92 reports
- Airbag warning light or recall 60 reports
- A/C blows warm or the compressor fails 55 reports
- Battery dies or the car will not start 42 reports
- Loses power when accelerating 41 reports
- Seat belt or seat problems 36 reports
- Paint peels or body rusts 28 reports
- Traction control or StabiliTrak light comes on 26 reports