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.
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HOMESERVICE MANUALSACURA2015RLXREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTDRIVERS ASSISTANCE SYSTEMS - ADASDRIVING ASSISTANCE / WARNING SYSTEMS - TESTING & TROUBLESHOOTING (EXCEPT HYBRID)SYMPTOM TROUBLESHOOTING INDEXFORWARD COLLISION WARNING (FCW) SYMPTOM TROUBLESHOOTING INDEX (FCW) (2014 2015 2016)
2015 Acura RLX
Forward Collision Warning (FCW) Symptom Troubleshooting Index (FCW) (2014 2015 2016)
2015 Acura RLXSECTION Forward Collision Warning (FCW) Symptom Troubleshooting Index (FCW) (2014 2015 2016)
| Symptom | Diagnostic procedure | Also check for |
|---|---|---|
| HDS does not communicate with the FCW/LDW camera unit | Troubleshoot the DLC circuit . | |
| FCW indicator does not go off (LDW indicator is ok) | ||
| FCW indicator does not come on (LDW indicator is ok) | ||
| Both FCW and LDW indicators do not go off | Symptom troubleshooting . | |
| Both FCW and LDW indicators come on at the same time (Temperature too hot) | Refer to general troubleshooting . | |
| FCW indicator does not blink when the system is warning (FCW/LDW camera unit is ok) | ||
| FCW warning buzzer does not sound when the system is warning (FCW/LDW camera unit is ok) | ||
| FCW system warns when warning is unnecessary | Aim the FCW/LDW camera . |
|
| FCW system does not warn when warning is necessary | Aim the FCW/LDW camera . |
|
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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.