What is the reason why the automatic parking button of Hongqi HS5 does not light up?

[DiCooper]

The reason why the automatic parking button light does not light up may be that the car is not in the start state; the door is not closed properly; the ESP is not working properly; the seat belt is not fastened, etc. More introduction to the automatic parking function is as follows: 1. Definition: Automatic parking refers to an automatic braking function. After starting this function, for example, when parking and waiting for a traffic light, it is equivalent to not using the handbrake, which can simplify the operation by avoiding the use of the handbrake or electronic handbrake. Automatic transmission models also do not need to frequently switch from D to N, D to P back and forth. 2. Principle: The automatic parking function provides accurate parking force through the slope sensor by the controller. When starting, the parking control unit calculates the information provided by the clutch distance sensor, clutch engagement speed sensor, throttle pedal sensor, etc. When the driving force is greater than the driving resistance, the parking brake is automatically released, so that the car can start smoothly.

[DeAlina]

I've encountered this situation before. There are usually several reasons why the auto-hold button light doesn't illuminate. The most common one is a burnt-out backlight bulb, as the LED light beads in electronic buttons are prone to failure after prolonged use. It could also be due to poor circuit contact, especially if the ribbon cable connected behind the button is loose or oxidized, which would affect power supply. Additionally, it's necessary to check the fuse—there's a dedicated 10A fuse for button lights in the fuse box under the steering wheel on the driver's side. If it blows, none of the button lights will work. Another possibility is that the system itself isn't activated, such as when the seatbelt isn't fastened or the door isn't closed properly, in which case the button light will also go out. It's recommended to first use an OBD scanner to check for trouble codes, which can save a lot of time. If you're going to dismantle the panel yourself for inspection, be careful with the clips, as the interior craftsmanship of Hongqi vehicles is quite refined, and it's easy to damage them if you're not careful.

[JeffreyMarie]

I've researched this issue. If the auto-hold button light isn't on, the first thing to check is whether the function still works. If it operates normally when pressed, it's likely an illumination circuit problem. It could be a loose connector - there's a wiring harness plug near the gearshift lever that can get shaken loose on bumpy roads. Module issues are another possibility; this car's electronic parking control module is under the center armrest, and water damage or moisture there can cause trouble. Blown fuses are also common, but note that Hongqi has two fuse box locations: one in the engine compartment and another below the dashboard on the driver's side. The simplest check is to see if other button backlights work - if others light up but this one doesn't, there's an 80% chance the button itself is faulty, and you can just replace the button assembly yourself.

[AdrielLee]

It's quite annoying when the button lights don't work, making night driving inconvenient. Last time I encountered this issue, I found several common causes: First, excessive use leads to wear and tear of the micro switch, causing poor contact and failure to light up. Second, water leakage into the center console during car washing can cause a short circuit and blow a fuse. Third, the wiring harness might have been disturbed during audio system modifications. For troubleshooting, start by checking the fuse box, located above the left knee of the driver's seat—pull off the cover and use tweezers to remove and inspect the fuses. If it's a wiring issue, it's more complicated, and I recommend visiting a 4S shop to test the circuit continuity with a multimeter. Be careful not to spill drinks into the button gaps in daily use, as sugar can oxidize the contacts. If the auto-hold function itself isn't faulty, the light not working doesn't affect driving safety.

[VanKiara]

As an experienced owner, I've found that button malfunctions are often caused by these reasons: control module failure, especially with a higher occurrence after humid weather; poor relay contact leading to circuit issues; and voltage abnormalities, such as the system automatically shutting down non-essential electrical equipment when the battery is low. Also, a commonly overlooked point: outdated software versions in this model can cause the system to misjudge functional statuses. It's recommended to try restarting the engine or disconnecting the battery's negative terminal for a few minutes to reset the system. Extra caution is needed if you've just had window tinting applied, as technicians might accidentally allow water to seep into the dashboard during installation. In fact, the lifespan of button lights is generally around 50,000 presses, and frequent use may lead to earlier failure in heavily used vehicles.

[SanMarley]

Non-illuminated button backlighting may involve multiple components. First, check the power supply - blown fuses are most common, located at position F37 in the driver's seat fuse box. For signal transmission, the wiring from the body control module to the buttons uses LIN bus protocol - circuit breaks will cause control failure. Finally, the button assembly itself may have damaged LED bulbs or resistors preventing illumination. Recommended basic troubleshooting: Start the vehicle, fasten seatbelt, press brake pedal while testing buttons; check if other interior button backlights function normally; operate in low-light conditions for better observation. For repair shops, request circuit diagram diagnostics and ECU data stream analysis for accurate diagnosis.