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.
Personalization Option - Dash Integration Module (DIM)
Front door modules also cannot perform memory mirror functions unless the Personalization Option in the dash integration module (DIM) is activated. The DIM stores the Personalization Option setting provided at the assembly plant and reports the setting to both front door modules, as well as other receiving modules, each time the ignition switch is cycled to RUN. The front door modules store the Personalization Option setting provided by the DIM and examine it before making a memory mirrors adjustment.
The Personalization Option setting stored within the front door modules will not change until the Personalization Option setting within the DIM is changed and the ignition switch then cycled to RUN.
If the Personalization Option is activated on a vehicle that is not equipped with memory, the door modules will erroneously set DTCs B1586 and B1591.
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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.