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.
Navigation System
The navigation module is integrated in the ACM and controls the operation and the interface between the user, the vehicle subsystems, and the external components. The ACM communicates with other vehicle systems via the MS-CAN and can be diagnosed with a scan tool.
The vehicle navigation system guides the user to a pre-entered destination. A navigation map DVD stored in the navigation module sends route calculation data to the ACM. The ACM audibly and visually instructs the user of the maneuvers required to arrive at the destination entered.
In order to calculate initial vehicle position, the global positioning system (GPS) antenna is used to track several available satellites simultaneously. Vehicle speed and transmission gear selected signals received through the MS-CAN are also used to detect vehicle speed and direction changes.
A voice recognition system allows the user to interface with the system without using the touch screen. A microphone located in the rear view mirror provides a direct input to the ACM.
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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.