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.
Keyless Access System Symptom Troubleshooting Index (2013-15)
2015 Acura RDX AWDSECTION Symptom Troubleshooting
| Symptom | Diagnostic procedure | Also check for |
|---|---|---|
| Cannot select ON mode with keyless access and with the keyless remote touching the engine start/stop switch | SYMPTOM TROUBLESHOOTING . |
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| Cannot select ON mode with keyless access, but can select ON mode with the keyless remote touching the engine start/stop switch | Go to keyless access:Symptom Troubleshooting |
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| Cannot select ON mode with the keyless remote touching the engine start/stop switch, but can select ON mode with keyless access | Check the backup control unit |
|
| Engine does not crank (power supply is normal) |
|
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| Engine starts but stalls immediately | SYMPTOM TROUBLESHOOTING |
|
| Symptom | Diagnostic procedure | Also check for |
|---|---|---|
| All the doors and the tailgate will not lock and unlock | SYMPTOM TROUBLESHOOTING |
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| The doors will not unlock (lock is normal) with keyless access or with the keyless remote buttons, or the doors will not lock (unlock is normal) with keyless access or with the keyless remote buttons | SYMPTOM TROUBLESHOOTING |
|
| Keyless access indicator does not go off or does not come on | SYMPTOM TROUBLESHOOTING |
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| Immobilizer indicator does not go off or does not come on | Go to keyless access system:Symptom Troubleshooting |
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| The key-in reminder does not sound | Go to keyless access system:Symptom Troubleshooting |
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| The key-in reminder sounds when in vehicle OFF mode door is open | Go to keyless access system:Symptom Troubleshooting |
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| Engine start/stop switch does not work | Check for DTCs. If any DTC is indicated, go to the DTC troubleshooting |
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| The mode changes between ACC and ON, but it does not change to OFF |
|
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| Symptom | Diagnostic procedure | Also check for |
|---|---|---|
| The mode changes between ACC and ON, but it is difficult to change to OFF |
|
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| The doors will not unlock or lock with the keyless remote, but will unlock or lock with the door outer handles | Go to keyless access system:Symptom Troubleshooting |
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| 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 | Go to keyless access system:Symptom Troubleshooting |
|
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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.