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Muting Logic LCD Unit Limitations Symptom Duplication 23-267 The accuracy of the GPS is reduced during these • Metallic window tinting above the GPS antenna. (Four satellite signals are required for accurate • When driving near high tension power lines. problems. Whenever the navigation system is giving guidance, NOTE: The screen is not touch sensitive. Use the • In cold temperatures, the display may stay dark for the first 2 or 3 minutes until it warms up. • When the display is too hot because of direct summer sunlight, it will remain dark until the temperature • When the humidity is high and the interior temperature is low, the display may appear cloudy. • Fingerprints on the screen may be noticeable. Clean the screen with a soft, damp cloth. You may use a • When the symptom can be duplicated, verify that it is not a characteristic of the system. Review the • When the symptom does not reappear or only reappears intermittently, ask the client about the misunderstanding of the system. – Try to establish if outside interference may have been the cause. – Try to duplicate the symptom under the same conditions the client experienced. – Vibration, temperature extremes, and moisture (dew, humidity) are factors that are difficult to – Inspect the vehicle for after-market electronic devices (vehicle locators, amps, radar detectors, When troubleshooting navigation system problems, 08/08/21 14:14:21 61SNR030_230_0270 |