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: Operation: Notes
Vehicle speed sensor provides vehicle speed. Yaw rate sensor is an oscillation gyro built into navigation unit. Yaw rate sensor detects direction change (angular speed) of vehicle. The GPS antenna amplifies the GPS satellite signal and then transmits it to the GPS receiver. GPS is an integral component of the navigation unit. The GPS receiver passes the information to the navigation unit which uses the vehicle position and GPS satellite signal reception to fine tune exact position of vehicle. Navigation unit performs map matching correction using a DVD-ROM map database. It also performs GPS corrections and distance tuning menu functions. The navigation unit then transmits a signal to the display unit and audio driving instructions to the audio unit.
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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.