
The door light of the Trumpchi GS4 may not illuminate when the switch is turned on due to the following possible reasons: 1. Switch malfunction; 2. Blown fuse; 3. Short circuit in the wiring; 4. Poor contact between the door and the door switch; 5. Burnt-out door light. The door light serves two main purposes: first, it provides some illumination at the exit area when the door is opened, and second, it alerts vehicles behind when the door is opened to prevent collisions. The Trumpchi GS4 has a length of 4545 mm, a width of 1856 mm, a height of 1668 mm, and a wheelbase of 2680 mm. The Trumpchi GS4 is a compact SUV, and all models are equipped with a 1.5-liter turbocharged engine.

When the interior light of my Trumpchi GS4 doesn't turn on when opening the door, I think the first thing to check is whether the bulb is burnt out. This is quite common in older cars, especially since the GS4's door light position is prone to dust or moisture affecting its lifespan. Next is the fuse issue – the fuse box is usually located near the glove compartment, and if it's blown, you'll need to replace it. I usually keep a few spare fuses at home for emergencies. If both the bulb and fuse are fine, then the door switch might be faulty. It's a small mechanical device on the door frame, and sometimes it gets stuck and doesn't make contact with the circuit, preventing electricity from flowing. You can try pressing it manually a few times to clean out any dust. Additionally, wiring faults shouldn't be overlooked, such as short circuits or loose connections. If you're not familiar with these, it's best to take it to a professional shop for inspection to avoid wasting time. Although a non-functioning interior light might seem like a minor issue, it affects nighttime safety. I recommend that owners regularly maintain their lighting systems to avoid inconvenience when heading out.

My GS4 also had an issue with the door light not turning on, which felt like a mini nightmare. Common causes are a blown fuse or a burnt-out bulb. I went to the auto shop, bought a new bulb, and replaced it, which fixed the problem. The trigger switch on the door tends to accumulate dust and get stuck, especially during the rainy season. I later learned to clean it monthly to prevent malfunctions. It's also worth checking the vehicle settings—sometimes the light switch is set to 'off' mode, and switching it to 'auto-on when door opens' solves the issue. If none of these work, it could be a wiring short circuit or a battery problem. I recommend not messing around and heading straight to the 4S shop for a check-up—safety first. Regular checks on the lighting system can save a lot of trouble, especially in models like the GS4.

I think the issue of the interior light not turning on when the door is opened might be caused by simple problems, such as a burnt-out bulb, a blown fuse, or the door switch stuck in the closed position. On the Trumpchi GS4, first check the bulb's condition to see if it needs replacement, then locate the fuse box to replace the corresponding fuse. Cleaning the dust off the door switch can restore contact. If the light switch is set incorrectly, it can also cause the light not to turn on—try adjusting it to the correct position. These are usually things you can handle yourself. If the problem persists, consider issues with the wiring or power supply, and it would be more appropriate to have a professional technician handle it.


