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 MANUALSACURA2003MDX TOURINGREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTENTERTAINMENT SYSTEMSONSTAR SYSTEMCONTROL UNIT REMOVAL/INSTALLATION
2003 Acura MDX Touring
Control Unit Removal/Installation
2003 Acura MDX TouringSECTION Control Unit Removal/Installation
- Remove the center console (see CENTER CONSOLE REMOVAL/INSTALLATION ).
- Remove the rear blower motor (see REAR BLOWER MOTOR REPLACEMENT )
- Loosen the bolts that secure the OnStar control unit and bracket (E) to the shift lever base assembly, then slide the control unit and bracket forward to remove it.
- Disconnect the 22P and 16P connector (A), the antenna lead 2P connector (B), and the antenna lead 1P connector (C) from the OnStar control unit (D).
- Remove the bracket from the control unit.
- Install the control unit in the reverse order of removal.NOTE: Replacement units are in the Shipping Mode and will need to be switched to Market Mode (see TRANSITIONING THE ONSTAR CONTROL UNIT TO MARKET MODE ).
RENDER: 1.0x
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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.