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 MANUALSACURA2018RLX BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEDOOR LOCKSSECURITY SYSTEM KEYLESS ENTRY SYSTEM - TESTING & TROUBLESHOOTING (EXCEPT HYBRID)SYMPTOM TROUBLESHOOTING INDEX FOR VIEWERTHE MODE CHANGES BETWEEN ACC AND ON, BUT IT IS DIFFICULT TO CHANGE TO OFF (KA/KC MODEL) (2016 2017 2018 2019 2020)
2018 Acura RLX Base
The mode changes between ACC and ON, but it is difficult to change to OFF (KA/KC model) (2016 2017 2018 2019 2020)
2018 Acura RLX BaseSECTION The mode changes between ACC and ON, but it is difficult to change to OFF (KA/KC model) (2016 2017 2018 2019 2020)
Diagnostic procedure
- Check the keyless access/TPMS control unit
- Check the gauge control module
Also check for
- Gauge control module
- Keyless access/TPMS control unit
- PCM
- B-CAN communication line open/short
- F-CAN communication line open/short
- Speed signal line open
- Park pin switch
- P-PIN SW line open
RENDER: 1.0x
NO RELATED
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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.