
The reason for the insufficient warning displayed on the car's central control screen may be due to low battery voltage. Here are the specific details: 1. Cause: To confirm low battery power, observe the vehicle's ignition performance during winter mornings. If the ignition is slower than usual, requiring multiple attempts, or the battery seems strained, it indicates low battery voltage. Another way to check is by observing the headlights during ignition—if they dim, it signifies insufficient battery power and requires attention. 2. Solution: If the battery charge is low during winter, it's advisable to recharge the battery by driving for about half an hour, preferably on highways or elevated roads. For cars experiencing low battery issues, drive the vehicle every three to four days. In winter, park the car in a garage to avoid prolonged exposure to low outdoor temperatures, which can further deplete the battery, as garages generally maintain higher temperatures. Avoid using the radio, lights, etc., after turning off the engine if the battery is low. Additionally, replace the battery if it has been in use for two and a half to three years.

Last time my car’s center display suddenly showed a ‘low ’ warning—scared me to death! I immediately checked the battery terminals, and sure enough, they were oxidized and covered in white residue. After cleaning the connectors, the issue was fixed. This is actually very common, especially in older cars—poor terminal contact can cause the screen to misread the voltage. Here’s a pro tip: if the screen flickers along with dimming dashboard lights, there’s an 80% chance the alternator belt is loose or worn. Once on a long trip, my belt started squealing while the screen flashed warnings—tightening it made everything peaceful again.

As an electronics enthusiast, I'm particularly focused on the power supply logic of the center console screen. The vehicle powers both the starter motor and the center console screen via a DC-DC converter. When the battery ages (especially after five years or more), voltage drops during cold starts can cause false alarms on the screen. Once, I measured the voltage plunging to 9V during startup with a multimeter, while most screens have a minimum operating voltage of 10.5V. Those who have modified their audio systems should be extra cautious—amplifiers secretly draining power can also trigger screen warnings.

We female car owners are most likely to overlook hidden power drains. My bestie's SUV kept showing low warnings on the infotainment system, and it turned out the dashcam was wrongly connected – directly to the constant power supply port, which kept draining the battery even when the car was locked. I recommend checking these details: whether there's any device plugged into the OBD port, or if a charger is left in the cigarette lighter socket. Also, when taking kids out, forgetting to turn off the rear seat entertainment system can quietly drain the battery – I once had to call for roadside assistance because of a dead battery from this exact situation.

The most challenging case I encountered was an intermittent screen power alarm. A thorough inspection revealed poor contact in fuse No. 32 in the fuse box, with visible metal erosion upon removal. Such intermittent circuit issues show normal voltage when measured with a multimeter, requiring disassembly for detection. Reminder: When installing aftermarket reversing cameras with wire splicing, prolonged insulation tape detachment may cause short circuits, leading the system to misinterpret short-circuit current as power anomalies.

Attention to friends who just bought a : be cautious if the previous owner installed ambient lighting. I inspected a car where the central display frequently reported insufficient battery power. After removing the trim panels, I found the previous owner had used a low-quality voltage reduction module for the ambient lights, which was leaking electricity and caused the static current to exceed the standard by three times. The only permanent solution is to remove all aftermarket devices; otherwise, even a new battery won't last more than two weeks. Always choose accessories with a sleep mode for modifications!


