Acura MDX And RLX Recalled Over Automatic Emergency Braking System Defect

American Honda Motor Company is recalling the Acura MDX and RLX to fix an issue with the Collision Mitigation Braking System (CMBS).

The defect: in certain driving conditions, the Collision Mitigation Braking System (CMBS) may incorrectly interpret certain roadside objects such as metal fences or metal guardrails as obstacles and unexpectedly apply the brakes.

The hazards: if the CMBS unexpectedly applies emergency braking force while driving, there is an increased risk of a crash.

Affected vehicles:

  • 2014-2015 Acura MDX 2WD and AWD
  • 2014-2015 Acura RLX
  • 2014 Acura RLX Hybrid

Number of vehicles affected: 19,502.

The fix: Honda will notify owners, and dealers will update the CMBS software, free of charge.

Owners should: Honda has not yet provided a notification schedule.

Customers looking to find out if their vehicle is included in this Acura recall should visit and click on Recalls at the bottom of the page.

Customers can then enter their Vehicle Identification Number (VIN) to see any open recalls as well as customer satisfaction programs. If the vehicle is part of the recall, customers should take it to a Honda or Acura dealer.

Owners may contact Acura customer service with questions by using the following information.


  • Acura Customer Service: 1-800-382-2238
  • Honda-Acura Recall Number: JQ4, JQ5, JQ6
  • NHTSA Toll Free: 1-888-327-4236
  • NHTSA (TTY): 1-800-424-9153
  • NHTSA Website:
  • NHTSA Recall Number: 15V301000

News editor focusing on business, financial, and sales coverage who loves anything on wheels, especially if it's fast.

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