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The beeping sound confirms you have correctly locked your Acura MDX SUV. It ensures the safety of vehicles and items inside the vehicle. Sometimes you may not hear the beep sound when you lock the car. If you face such an issue in your SUV, then fixing it is a must. But do you know how to troubleshoot Acura MDX not beeping when locked?

Check for the battery, alarm system, speakers, and fuse. Replace the battery if it is dead, change the alarm system if irreparable, and replace faulty speakers and fuse to eliminate the problem.

I will teach you the process of troubleshooting the issue and help you determine the cause of the problem. So if you’re ready to get to the bottom of this beeping issue, let’s get started!

Why Is My Acura Beeping?

Acura’s beeping system works for several purposes; here are some major functions.

  • You may hear the beeping sound when the fuel level is low
  • It also indicates the low tire pressure 
  • The beeping sound is also an indicator for door lock or open

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Why Does My Acura MDX Alarm Keep Going Off?

You may experience Acura MDX not beeping when locked due to several problems. But here are a few potential causes that may cause no beep when locking the door.

  • Dead battery
  • Faulty Alarm system
  • Faulty Speaker
  • Fuse Issues

How To Troubleshoot Acura MDX Not Beeping When Locked? [ Problems & Solutions]

acura mdx not beeping when locked

Problem 1: Dead Battery

A dead battery can be the culprit for no beep sound. If the battery in Acura MDX is low or dead, the beep sound may not work when you lock the doors.

Solution 1: 

  • Locate the battery compartment in the Acura MDX, which is usually found under the hood of the car
  • Open the battery compartment and check the battery terminals to ensure they are clean and secure.
  • Check the battery voltage using a multimeter. I recommend Klein Tools CL220 Digital Multimeter. If the voltage is below 12V, it may be time to replace the battery.
  • If a replacement is needed, purchase the correct battery size and type for the Acura MDX.
  • Carefully remove the old battery by disconnecting the terminals and lifting it out of the compartment.
  • Install the new battery, connect the terminals, and secure it.
  • Test the alarm by pressing the panic button on the key fob.

Problem 2: Faulty Alarm System

If the alarm system has a problem, you cannot hear the beep sound on Acura MDX. So, checking for the Alarm system is good if you experience no beep sound problem when locking the door.

Solution 2:

  • First, locate the alarm system in your Acura MDX, typically under the dashboard or in the engine compartment.
  • Disconnect the battery to prevent any electrical shock or damage while working on the alarm system.
  • Check the Alarm system; remove the alarm system carefully if damaged. Unplug it from the wiring harness and remove any screws or bolts that hold it in place.
  • Acquire a replacement alarm system compatible with your Acura MDX model and year.
  • Install the new alarm system by carefully connecting it to the wiring harness and securing it with screws or bolts.
  • Reconnect the battery and test the alarm system to ensure it works properly.

Problem 3: Faulty Speakers

Faulty speakers can be the cause of Acura MDX not beeping when locked. You can only hear the voice once the speakers work finely.

Solution 3:

  • Check for the Acura MDX speakers located in the front and rear doors.
  • Check for the wires and connections; repair them if they are broken. Tightly screw the loose connection.
  • Finally, check for the Speakers. You can check the speakers by connecting with other cars.
  • Remove the speakers and connect the speakers with another car. 
  • If speakers are faulty, replace them. I recommend JBL GT0629 Premium 6.5 inches Co-Axial Speaker for Acura MDX.
  • Install the new speakers, connect them to the power source, and test the beep sound.

Problem 4: Fuse Issues

A faulty fuse can be the cause of the no-beep sound when locking Acura MDX. So, it is a must to check for the fuse if you experience the no beep sound.

Solution 4:

  • Locate the fuse box; it is mounted in the engine compartment in Acura MDX on the driver’s side.
  • Identify the damaged fuse, and look through the diagram on the fuse box cover. It may be labeled as a “buzzer” or “chime.”
  • Remove the damaged fuse, and gently use a fuse puller or needle-nose pliers to pull the damaged fuse out of the fuse box. 
  • Replace the damaged fuse, and insert a new fuse of the same amperage rating into the same location as the damaged fuse.

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How To Turn Off The Beep on Acura MDX?

 how to turn off beep on acura mdx

To turn off the beep on an Acura MDX, follow below easy steps.

  • Press the “audio” button on the dashboard to access the audio system settings.
  • Use the left or right arrow buttons to select the “beep” setting.
  • Press the “enter” button to turn off the beep.
  • Press the “exit” button to return to the previous screen.

How To Turn Off the Alarm on Acura MDX?

To turn off the alarm on your Acura MDX, follow below easy steps.

  • Start by unlocking the doors using the keyless entry remote or the key. 
  • Next, press the “unlock” button on the driver’s side door. 
  • The alarm should be silenced.
  • If the alarm continues to sound, locate the alarm fuse in the fuse box and remove it to disable the alarm

Frequently Asked Questions (FAQs):

How do I stop my Acura MDX from beeping?

Check the vehicle’s manual for specific instructions to stop your Acura MDX from beeping. Common causes of beeping include low fuel levels, open doors, or a malfunctioning sensor. If the beeping persists, it is recommended to bring the vehicle to a certified Acura dealer for diagnosis and repair.

Why does my Acura MDX alarm keeps going off?

The alarm on an Acura MDX may keep going off for various reasons. Some common causes include a malfunctioning sensor, a dead battery in the key fob, or a problem with the alarm system itself.

How to turn off the panic alarm on Acura MDX?

To turn off the panic alarm on an Acura MDX:
01. Locate the panic button on the keyless remote or the dashboard.
02. Press the button for a few seconds until the alarm stops sounding.
03. If the remote is not available, use the key to unlock the driver’s door and turn off the alarm by starting the car.


The Acura MDX is a reliable vehicle, but if it is not beeping when locked, troubleshooting can be a frustrating issue. It may be a simple fix, such as a dead battery, or a more complex issue with the alarm system. Overall, proper diagnosis and repair are crucial to getting the beeping feature working again.

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