What are the reasons for no internet connection in Haval car network?
5 Answers
Reasons for no internet connection in Haval car network: 1. The navigation device does not have WiFi function. If it does, please check whether the account matches. 2. Network connection error, check whether the network exists. 3. Poor network signal in the location. 4. The navigation has not downloaded offline maps and offline navigation information. Relevant information about car Bluetooth is as follows: 1. Function: After the Bluetooth function is successfully matched, you can use your mobile phone to play audio files, answer calls, which is very convenient to use. When the vehicle is driving, it can ensure driving safety. After the car system and Bluetooth system are connected, you can directly make calls on the car system in hands-free mode. 2. Automatic connection: As long as the mobile phone and car system are connected, they will automatically connect when used again, provided that the Bluetooth system of the mobile phone must be turned on. There is no need to connect frequently, which also saves a certain amount of time and brings certain convenience to the use of the vehicle. However, when using Bluetooth calls, you need to pay attention to privacy.
Recently, my Haval H6 also experienced network outage issues, and I found these main reasons: The data plan in the vehicle system might have been used up, so check the remaining data in the Haval Zhijia APP; the infotainment system sometimes freezes and needs a reboot—hold the volume knob for 10 seconds to force a reset; a loose connection in the shark fin antenna on the roof can cause weak signals, especially after car washes or on bumpy roads; poor signal coverage in underground garages or remote mountainous areas is normal; another hidden reason is a failed OTA system update, which requires a visit to the 4S店 for a reflash. I later found that if rebooting the infotainment system doesn’t help, connecting to a mobile hotspot can temporarily solve navigation needs. Remember not to disassemble the antenna module yourself—the waterproofing process is quite complex.
My colleague's newly purchased Haval Big Dog lost internet connection on the third day. After troubleshooting, I found the following issues: poor contact in the SIM card slot inside the glove compartment (reinserting the IoT card fixed it); the signal amplifier wiring near the AC vents was being pressed by the floor mat; and the telematics control module (T-BOX) might have overheated due to prolonged sun exposure (turning off the engine for half an hour to cool it down resolved the issue). I recommend avoiding placing metal objects on the dashboard as they can interfere with the signal. The 'Network Diagnostics' feature in the infotainment settings is very useful—it directly displays signal strength, and only a full green bar indicates normal operation. It's also advisable to download offline maps before long trips as a backup.
As a frequent traveler on the Sichuan-Tibet line in my Haval, sudden loss of network connection is my biggest fear. Here's what I've learned: the signal receiver is located in the shark fin antenna on the roof, which can get blocked by ice during snowy weather; continuous driving for over 4 hours may cause the telematics module to overheat; and installing additional electronic devices (like radar detectors) might interfere with radio frequencies. In emergencies, try the 'triple restart' method: briefly press the ignition switch to turn off and restart the vehicle, reset the infotainment system (by holding HOME + Volume buttons simultaneously), and as a last resort, disconnect the negative battery terminal for 5 minutes. Before heading to Tibet, I specifically upgraded to a high-gain antenna, which now allows me to send short messages via the BeiDou satellite even without cellular coverage. Be cautious with wiring modifications - my vehicle once experienced a complete bus system short circuit due to improper wire splicing.
After years of researching Haval vehicle systems, it's been found that 80% of network failures are software-related. For instance, accidentally enabling airplane mode (located on the second page of system settings) or incorrect network band settings (auto mode should be selected). A typical case encountered last week: a user installed a dashcam with incorrect fuse tap connection, causing unstable T-BOX power supply. The recommended troubleshooting steps are: 1) Check the telematics indicator on the dashboard (whether the small globe icon is flashing), 2) Test other connectivity features (e.g., if remote start functions), 3) Inspect the blown fuse (15A fuse in the engine compartment fuse box). For older models, also verify IoT card expiration - early data plans had only 3-year validity.
