Why is the car navigation not working?

[McMaci]

Possible reasons: 1. The navigation fuse is blown and needs replacement. 2. The device is malfunctioning and requires repair. Additional information: 1. Introduction: Car navigation systems with automatic voice guidance and optimal route search functions allow you to take shortcuts and travel unimpeded. The integrated office and entertainment features enable smooth driving and efficient travel. 2. Functionality ensures the system operates normally during driving, with uninterrupted DVD playback for smoother usage. It supports reverse camera view, solving parking difficulties and avoiding scratches, bringing more value to car owners.

[MacLeo]

My car's navigation system had this issue before, probably due to a software glitch or signal problem. Try rebooting the infotainment system by holding the power button for about 10 seconds to force a restart—it's the same principle as when a phone freezes. If that doesn't work, it’s likely the map data is outdated and causing errors; connect to your phone’s hotspot to update the map package. The most annoying scenario is a faulty antenna module—my colleague’s SUV had water ingress during rain, killing all GPS signals, and replacing the module cost over 800 RMB. Another time, I found it was just a loose screen ribbon cable; I fixed it by opening it up and reseating it. For emergencies, you can use your phone’s navigation, but long-term, it’s best to get it repaired—especially since the factory navigation projected on the instrument cluster is much safer for driving.

[StRose]

In-car navigation failures generally fall into three categories: hardware malfunctions, system lag, or data abnormalities. First, check if the car's infotainment system feels hot to the touch - overheating can trigger automatic frequency throttling causing sluggishness. Try turning off the engine to cool for 30 minutes before retesting. Partial touchscreen unresponsiveness might be caused by warped tempered glass screen protectors; remove the protector and test physical button operation instead. For software issues, performing a factory reset often helps, but remember to backup your address book first. Some users reported navigation screen blackouts after installing aftermarket 360-degree cameras - such wiring interference requires professional diagnostic checks. Additionally, inspect the corresponding 10A mini-fuse in the fuse box; replacements cost about five yuan if blown.

[Debra]

Experienced navigation failures twice: The first time the map got stuck in a different location and wouldn't refresh. Deleting offline maps of a few provinces and redownloading them fixed it. The second time was even weirder - couldn't switch back from night mode until I cleaned the headlight sensor. Recommend regularly clearing the infotainment system cache, especially for older cars which are more prone to memory issues. For complete black screens, check power supply lines - if USB music still plays, it means the main unit isn't damaged, focus on navigation module wiring. Tesla owners should note that failed OTA updates can also cause function abnormalities - best to connect to stable WiFi before updating.

[McAnthony]

When navigation fails, first check if the positioning is accurate. If it drifts several kilometers, it might be due to metal film shielding the signal—simply switch to an external antenna. Incorrect system time can also mislead the route, so go to settings to calibrate the time. Once, I borrowed a car and found the navigation locked; it turned out the previous user had set a destination lock screen password. For older cars, remember to check if the SD map card is oxidized—rubbing the gold contacts with an eraser might help. Models with gyroscopes need sensor recalibration after severe bumps, which can be found in the hidden menu. For cars with modified circuits, focus on checking fuses and ground wires.