What is the reason why the display screen of the Buick Regal cannot be turned off after the engine is turned off?
3 Answers
If this issue has not occurred before and has just happened, it may be due to a malfunction of internal electronic components causing misoperation, such as transistor breakdown or short circuit. Here is the relevant information: 1. Introduction to in-car multimedia: In-car multimedia navigation system is a multimedia and navigation system embedded and installed for use in the automotive environment. 2. The necessity of in-car multimedia: In-car multimedia navigation can optimize traffic efficiency. GPS navigation brings a more intelligent, scientific, and efficient traffic management system, greatly alleviating urban traffic pressure. With the rapid development of the domestic economy, urban road changes are relatively frequent. Using a personal navigation terminal allows for timely updates, ensuring that electronic maps are always up-to-date and accurate, enabling drivers to promptly grasp road changes and improve driving efficiency.
I encountered this issue when driving my Buick Regal. It's really annoying when the screen stays on after turning off the engine. I checked the manual and found it might be a power setting problem, like the delayed shutdown feature not being enabled or malfunctioning, causing the system to mistakenly think the car is still powered on. Also, having USB devices connected for charging or doors not fully locked can keep the system awake. Key fob sensor failure is another common reason – if the remote signal is weak, it can't shut down properly. That time, I had to remove the key and wait ten minutes before it turned off, worrying the battery might drain and leave me unable to start the car. I recommend first checking the settings menu to disable any delay options, unplugging USB devices after turning off the engine to eliminate interference, and if that doesn't work, quickly visit a 4S shop for software updates or circuit checks. Regular maintenance of the car's electrical system can prevent this – don't let small faults turn into big troubles.
As a car enthusiast, I think the Buick Regal's screen not turning off is mostly due to issues with the electronic control unit. It could be a stuck relay continuously supplying power, or a blown fuse causing a signal short circuit. When the battery voltage is low, the system behaves abnormally and doesn't turn off the screen. Aging wiring or burnt contact points can also cause this, especially in modified cars with dashcams plugged in. I usually use a multimeter to check if the voltage is stable. If you're not familiar with this, don't take risks—have a certified technician check the CAN network for error codes. Software bugs may require a firmware update, which 4S shops can handle with professional tools. For prevention, keep the system updated and avoid excessive modifications that could damage the original circuitry. Remember, a drained battery can easily damage the motor, so timely action saves hassle and money.
