2018 Honda Odyssey · symptom sheet

Brakes on its own (automatic emergency braking)

103owner reports
59,000median miles
$2,000median quote
4involved a crash

Newest report Aug 31, 2026 · checked Sep 9, 2026

262 of the 977 complaints on this car are about collision avoidance. 103 of those describe phantom braking.

Tick what matches of 103 reports

nothing was in front of me

on the highway

near an overpass, shadow or truck

nearly rear-ended

the dealer found no fault

What got replaced

Owners who name the part that was replaced mention the radar or camera sensor (69 reports), the windshield (18 reports) and the software (14 reports).

Recalls and investigations

2 recalls on collision avoidance cover the 2018 model year. A recall on the same system isn't always the same failure, so read the defect text.

19V-213Mar 20, 2019

Service Brakes, Air:Antilock:Wheel Speed Sensor

Braun Corporation (Braun) is recalling certain 2018-2019 Honda Odyessy vehicles modified to be equipped with an in-floor wheelchair ramp conversion. The rear wheel speed sensor harnesses may have been routed to the incorrect rear wheels, resulting in the possibility that the anti-lock brake system will not recognize each rear wheel speed properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 135, "Light Vehicle Brake System" and 404, "Electronic Stability Control Systems."

Risk and remedy

Risk: If the rear wheel speeds cannot be correctly monitored, the anti-lock brake system may not engage properly to prevent the wheels from locking up, increasing the risk of crash.
Remedy: Braun has notified owners, and dealers will inspect and correct the rear wheel speed sensor harnesses, if necessary, free of charge. The recall began on April 4, 2019. Owners may contact Braun customer service at 1-800-488-0359.

18V-777Nov 1, 2018

Service Brakes, Hydraulic:Foundation Components:Disc:Caliper

Honda (American Honda Motor Co.) is recalling certain 2017-2019 Acura MDX, 2017-2018 Acura MDX Sport Hybrid, 2018-2019 Honda HR-V and Honda Odyssey, and 2016 Honda HR-V vehicles. The rear brake caliper pistons may have an insufficient coating, causing gas pockets to form, reducing brake performance. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 135, "Light Vehicle Brake Systems."

Risk and remedy

Risk: A reduction of braking performance increases the risk of a crash.
Remedy: Owners will be notified, and Honda or Acura dealers will bleed the brakes, free of charge. The recall began December 11, 2018. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are C31 and L30.

NHTSA investigations into collision avoidance on the Odyssey

EA09-014opened Oct 19, 2009

Service Brakes, Hydraulic · model years 2007 to 2008

Air in brake system. Closed may 11, 2010, led to recall 10V-098.

NHTSA summary

By letter dated March 15, 2010, American Honda Motor Corp. (HMC) notified the National Highway Traffic Safety Administration (NHTSA) that it will conduct a safety recall (NHTSA Recall No. 10V-098) to address a defect in approximately 412,000 model year (MY) 2007 and 2008 Honda Odyssey and Element vehicles equipped with an ABS/VSA/TCS modulator. The recalled Odyssey vehicles were built from August 2006 August 2008.The recalled Element vehicles were built from July 2006 to July 2008. According to Honda, during an initial self-check process that occurs shortly after each engine ignition cycle, the self-diagnostic software for the VSA modulator allows a vacuum condition that can exist for several hours, allowing air to enter the VSA modulator pump.Over time, and thousands of engine ignition cycles, it is possible for enough air to enter the system to result in a brake pedal that feels soft or lower to the floor.If the customer does not have any brake service or maintenance performed over a period of months or years, the system can continue to accumulate enough air to affect braking performance.To correct the safety defect, Honda dealers will remove existing air in the brake system then apply sealant and caps to the VSA modulator to prevent air from entering the brake system, free of charge. The action taken by Honda is sufficient to resolve the issues raised by this investigation. The agency will continue to monitor this issue and reserves the right to take further action if warr

PE09-024opened May 13, 2009

Service Brakes, Hydraulic · model years 2006 to 2008

Air in brake system. Closed oct 19, 2009, led to recall 10V-098.

NHTSA summary

THE OFFICE OF DEFECTS INVESTIGATION (ODI) HAS RECEIVED 69 COMPLAINTS, AND HONDA HAS RECEIVED 613 COMPLAINTS AND FIELD REPORTS, ALLEGING LOW/SOFT/SPONGY BRAKE PEDAL TRAVEL IN MODEL YEAR (MY) 2006 THROUGH 2008 HONDA ODYSSEY MINIVANS.TWENTY-SIX ODI COMPLAINTS WERE ALSO REPORTED TO HONDA, RESULTING IN A TOTAL COMPLAINT COUNT OF 656.SOME COMPLAINTS ALLEGE THAT THE CONDITION RESULTED IN EXTENDED STOPPING DISTANCES, INCLUDING SOME REPORTS OF ROLLING PAST STOP SIGNS OR TRAFFIC LIGHTS.THERE ARE 14 ALLEGED CRASHES IN THE SUBJECT VEHICLE POPULATION RELATED TO LOW/SOFT PEDALS. IN RESPONSE TO ODI'S INFORMATION REQUEST FOR PRELIMINARY EVALUATION PE09-024, HONDA INDICATED THAT SMALL AMOUNTS OF AIR MAY ENTER THE BRAKE SYSTEM DURING INITIAL DIAGNOSTICS OF THE VEHICLE STABILITY ASSIST (VSA) MODULATOR WHILE THE PUMP IS BRIEFLY ACTUATED FOR SYSTEM DIAGNOSTICS AFTER THE ENGINE IS STARTED.THE AMOUNT OF AIR GRADUALLY INCREASES WITH EACH SUCCESSIVE ENGINE START CYCLE, RESULTING IN PROGRESSIVELY INCREASING BRAKE PEDAL STROKE.ACCORDING TO HONDA, THE CONDITION DOES NOT PRESENT A SIGNIFICANT RISK TO MOTOR VEHICLE SAFETY BECAUSE THE PEDAL STROKE GRADUALLY INCREASES, PROVIDING THE DRIVER WITH INFORMATION THAT THE BRAKE PEDAL HEIGHT IS CHANGING AND REQUIRES ATTENTION.HONDA HAS FURTHER INDICATED THAT THERE IS NO DETERIORATION OF BRAKING PERFORMANCE CAUSED BY THE SUBJECT CONDITION, EVEN THOUGH THE PEDAL HEIGHT AND FEEL ARE DIFFERENT, UNTIL PEDAL STROKE HAS REACHED THE END OF TRAVEL AND THE DRIVER CANNOT PROD

None of these investigations covers the 2018 model year.

What owners paid

31 of the 103 reports quote a price. Each dot is one quote. The middle half runs $1,300 to $2,400.

$1,300$2,000$2,400

$0k$2k$4k$6k$8k

When it happens

The middle half of failures fell between 23,690 and 91,000 miles, from the 18 reports that gave a mileage.

218

219

422

723

3124

3725

2026

What owners wrote

“Lane keep assist, road mitigation, auto hi beam, adaptive cruise control, collision avoidance, road departure all errors and no longer work. New windshield wuth calibration august 2024, new battery 10/28/24. Issue started 10/25/24. A little over 90,000 miles on vehicle. Started vehicle in parking lot and all warnings came on. After new battery, warnings cine on and off at random.”
Filed Oct 30, 2024 · 90,000 miles

“I was driving home and suddenly the lights with these warning signs just came on. LKAS, ACC, Collision Avoidance, Auto High Beam Problem Ive heard from many customers complaining of this of 2018-2020 honda odyssey models”
Filed Jun 8, 2024

“The camera on the Honda van seems to act up when either its hot outside or cold outside. Due to this, the car will show these codes, (LKAS, ACC, Collision Avoidance, Auto High Beam Problem). Due to the camera having these isues, the collision avoidance puts myself and family at risk.”
Filed Jan 22, 2024

“All of the advanced driver assistance systems have failed: adaptive cruise control, emergency braking, forward collision warning, lane departure warning, lane keeping assistance. Additionally, there is a brake failure fault. The Honda dealership said that the plastic cover over the radar is prone to fogging and that we should clean it. We tried that and it did not work. Still get all of the faults and warnings.”
Filed Jan 16, 2024

Should you keep driving it?

This page can't tell you that. 4 of 103 reports involved a crash and 3 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.