Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2015 Acura MDX BaseFACTORY OEM SERVICE PROCEDURE
Security System / Keyless Entry System - Symptom Troubleshooting (Except Hybrid)
- Keyless Access System Symptom Troubleshooting
- The Doors Will Not Unlock Or Lock With The Door Outer Handle Touch Sensor Or Lock Switch, But Will Unlock Or Lock With The Keyless Remote (2017 2018 2019 2020)
- The Doors Will Not Unlock Or Lock With The Keyless Remote, But Will Unlock Or Lock With The Door Outer Handles
- The Engine Starts But Stalls Immediately
- The Key-In Reminder Does Not Sound
- The Key-In Reminder Sounds In Vehicle Off Mode When Door Is Open
- Keyless/Power Door Locks/Security System Symptom Troubleshooting
- Auto Door Unlock Does Not Work (2014 2015)
- Auto Door Unlock Does Not Work (2016)
- Auto Door Unlock Does Not Work (2017 2018 2019 2020)
- Doors Automatically Relock 30 Seconds After Being Unlocked With The Remote Even Though A Door Has Been Opened (2014 2015 2016)
- Doors Automatically Relock 30 Seconds After Being Unlocked With The Remote Even Though A Door Has Been Opened (2017 2018 2019 2020)
- Security Alarm System Will Not Arm (2014 2015)
- Security Alarm System Will Not Arm (2016)
- Security Alarm System Will Not Arm (2017 2018 2019 2020)
- The Horn Does Not Sound And/Or The Headlights Do Not Flash When The Panic Button On The Remote Is Pressed
- Circuit Troubleshooting
- Keyless Access System Touch Sensor Circuit Troubleshooting (2014 2015 2016)
- Keyless Access System Touch Sensor Circuit Troubleshooting (2017 2018 2019 2020)
- Keyless Buzzer Circuit Troubleshooting (2014 2015)
- Keyless Buzzer Circuit Troubleshooting (2016)
- Keyless Buzzer Circuit Troubleshooting (2017 2018 2019 2020)
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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