2018 Honda Accord · symptom sheet
Forward collision warning goes off or the camera drops out
- 92owner reports
- 40,000median miles
- $1,200median quote
- 2involved a crash
Newest report Aug 14, 2026 · checked Oct 2, 2026
92 of the 1,883 complaints on this car describe false collision warning.
Tick what matches of 92 reports
False collision warning 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: 2015, 2016, 2017, 2021, 2022, 2023, 2024, 2025, 2026.
What this problem usually is
This group is about the forward collision warning itself. Owners describe alarms with nothing ahead, a forward camera that fails or reports itself blocked, and other safety features shutting off at the same moment. A lot of them happen at highway speed, and a lot end with a dealer who couldn't reproduce it.
What got replaced
Owners who name the part that was replaced mention the radar sensor (14 reports), the forward camera (4 reports) and the software (3 reports).
Recalls and investigations
No recall on collision avoidance covers the 2018 model year as of Oct 2, 2026.
What owners paid
5 of the 92 reports quote a price. Each dot is one quote. The middle half runs $707 to $1,407.
When it happens
The middle half of failures fell between 26,600 and 59,000 miles, from the 12 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 1 service bulletin or notice 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.
American Honda has identified a condition that may affect Collision Mitigation Braking System (CMBS) operation. Due to software programming issues of the Advanced Driver Assistance System (ADAS), unexpected vehicle deceleration may occur.
What owners wrote
“The problem I am having with my vehicle Honda accord 2018 is with the head gasket. I was on the highway and as I was driving suddenly all the signs came on the display and gave a warning that my vehicle is overheating and it came down to 20mph while I was on the highway. This was very risky to me and the other vehicle around me.”
Filed Nov 21, 2025
“The warning lights for many areas has come on without warning. The car runs and drives fine. Took it to Honda. They want between 500 - 2500 to resolve the issue and replace the front radar. This appears to be a consistent problem for these 2018 Hondas. I already had to have the fuel injectors replaced at 48k miles. Another common Honda problem. Please help us as consumers”
Filed Nov 5, 2025 · 48,000 miles
“My car 40,000 miles and all waring lights are coming on the dash such check engine,lane acc,steering,brake ,parking , took to Honda dealer they say nothing was wrong now there saying it the fuel inject and it will be 1,250 to fix i been look it up and see there's a lot of other ppl with the same problem but no recall for the 2018 Honda Accord sport”
Filed May 10, 2023 · 40,000 miles
“Engine misfire causing limp mode. Dealer says head gasket blown. When misfire happens, all driver safety system warnings display. Car goes into limp mode which is dangerous if on high speed road. First appeared Oct-10-2022 with 59k miles on vehicle. Second appeared Nov-29-2022 with 60,300 miles on vehicle. Honda refuses to cover expense of replaceing head gasket and determining root cause.”
Filed Jan 1, 2023 · 59,000 miles
Should you keep driving it?
This page can't tell you that. 2 of 92 reports involved a crash and 5 people were hurt. 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
- Adaptive cruise or lane keeping misbehaves 103 reports
- Turbo failure or loss of boost 101 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