YearToAvoid

2021 Honda Odyssey Collision Avoidance & Cameras Problems

NHTSA lists 27 Collision Avoidance & Camera complaints for the 2021 Honda Odyssey, 19% of that year's 141 total complaints. One crash and one injury are linked to this area, and a related recall (23V431000) covers a faulty MOST cable connector.

Collision Avoidance & Cameras complaints
27
19% of 141
Crashes reported
1
Fires reported
0
Injuries reported
1
Median mileage
24,806 mi
Related recalls
1

Typical collision avoidance system symptoms owners report

  • Forward collision mitigation braking system activates unexpectedly at speed, rapidly slowing the car with no obstacle present.
  • Lane departure/steering assist misreads construction-zone lane markings and pulls the car toward barriers instead of following driver input.
  • Radar sensor behind the front logo reports being obstructed even when clean, disabling collision warning and related safety features.
  • MOST network/infotainment failures after recall repair cause backup camera, display, and audio loss, sometimes tied to the FMVSS 111 rear-visibility function.
  • VSA modulator failures trigger cascading warnings across airbags, ABS, traction control, blind spot detection, and parking sensors, sometimes disabling power doors.
  • Electric parking brake and collision mitigation warnings flash on and off in the console while driving, clearing only after restarting the vehicle.

When 2021 Honda Odyssey collision avoidance system complaints were filed

First complaint Feb 20, 2021, latest Sep 24, 2026.

2021 Honda Odyssey collision avoidance & cameras complaints: complaints filed per month3Feb 2021Aug 2022Jun 2023Aug 2024Apr 2025Sep 2025Aug 2026
27 complaints filed with NHTSA from Feb 2021 to Sep 2026; peak Jun 2023 (3).

Collision Avoidance & Cameras recalls for the 2021 Honda Odyssey

  1. NHTSA 23V431000Jun 15, 2023Collision Avoidance & Cameras1,209,673 vehicles

    Back over prevention:display function

    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.

Collision Avoidance & Cameras complaints by Odyssey model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

  1. 20100 (0%)
  2. 20110 (0%)
  3. 20120 (0%)
  4. 20130 (0%)
  5. 20140 (0%)
  6. 20153 (1%)
  7. 201613 (5%)
  8. 20171 (3%)
  9. 2018215 (22%)
  10. 2019244 (25%)
  11. 2020197 (42%)
  12. 202127 (19%)
  13. 202231 (23%)
  14. 202327 (27%)
  15. 202412 (11%)
  16. 202515 (4%)

Frequently asked questions

How many 2021 Honda Odyssey complaints involve collision avoidance and cameras?
NHTSA lists 27 complaints in this category for the 2021 Odyssey, which is 19% of the 141 total complaints filed for that model year.
Is there a recall for the 2021 Honda Odyssey collision avoidance system?
Yes. Recall 23V431000, reported June 15, 2023, covers a faulty MOST communication coaxial cable connector affecting 2018-2023 Odyssey, 2019-2022 Pilot, and 2019-2023 Passport vehicles. Dealers replace the MOST cable harness and install a straightening cover at no cost.
Has the collision avoidance issue caused any crashes?
NHTSA data shows 1 crash and 1 injury associated with Collision Avoidance & Camera complaints on the 2021 Odyssey.
At what mileage do these problems typically appear?
The median mileage at failure for this problem area on the 2021 Odyssey is 24,805.5 miles.
Is 2021 worse than other Odyssey years for this problem area?
No. The 2021 Odyssey's 19% share is lower than 2018 (22%), 2019 (25%), and 2020 (42%), though it is higher than 2024 (11%) and 2025 (4%).

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.