
The method to turn on the Crown headlight cleaning device is: 1. Start the vehicle and turn on the high and low beams; 2. Lift the windshield washer switch and hold it for 3 seconds to activate the headlight washer mode; 3. Spray water to clean the headlight covers. The headlight cleaning device is mainly used on vehicles equipped with xenon headlights, which offer advantages such as energy efficiency, high brightness, high color temperature comfort, and long lifespan. The Crown is a mid-to-large-size sedan under FAW , with a body length of 5020mm, width of 1805mm, height of 1480mm, and a wheelbase of 2925mm. In terms of configuration, the Crown is equipped with driver and front passenger airbags, front side airbags, front and rear head airbags, knee airbags, passive pedestrian protection, seatbelt reminder, rear child seat interface, ABS anti-lock braking system, brake force distribution, brake assist, traction control, and vehicle stability control.

I drive a 2018 Crown, and the headlight washer is actually quite useful. Usually, you just need to turn on the headlights first, then operate the wiper stalk as you would for the windshield washer, holding down the washer switch. At this time, while the windshield is being sprayed, the small nozzles under the headlights will extend and spray water. However, there are two things to note: First, the vehicle must be in the started state to operate; second, the headlight washer will only activate the first time you spray after starting the car. Subsequent sprays won't trigger it, as this is a protective mechanism set by the manufacturer. I typically use it when driving on the highway at night in the rain—when the windshield gets dirty, I clean the headlights at the same time, which is especially convenient. After cleaning, the headlight beam becomes noticeably clearer, making driving much safer.

Friends who own the Crown, here's how I operate the headlight washer: After starting the engine, first turn on the headlights, then directly use the wiper control stalk on the right side of the steering wheel and hold the washer button for more than 2 seconds. At this point, you'll hear a buzzing sound from the front of the car, indicating the washer nozzles are operating. Here's the key point—many owners don't know the activation conditions for this feature: the headlights must be on and the vehicle speed must be below 50km/h for it to work. I think this design is quite reasonable as it prevents accidental activation and wasting washer fluid. Also, a reminder: after washing, remember to check if the nozzles have retracted. If they remain extended for too long, they can accumulate dust and get stuck. Once, I didn't notice this, which caused them to jam during the next wash, requiring a trip to the dealership for repair.

As a long-time Crown owner, I've concluded that activating the headlight washers requires three conditions: the vehicle must be ignited, the headlights must be on, and the windshield washer must be operated. Don't worry about insufficient water spray during operation—the cleaning system has an independent water supply. This feature is quite thoughtful, especially during long trips when headlights get covered with insect remains; washing can restore about 70% of the brightness. However, be mindful not to use it too frequently as the water tank has limited capacity. During spring and autumn when there's more dust, you can use it once a week, but in winter when temperatures drop below freezing, use it sparingly to avoid freezing the nozzles, which can be troublesome. Also, remember not to open the car windows during cleaning—I forgot last time and ended up splashed with washer fluid.

My newly acquired Crown Sport also has this feature, and it took me two tries to get the hang of it. There's no need for a separate button—just keep pulling the wiper stalk toward yourself while the headlights are on. If you activate the rear windshield washer, the car will automatically adjust the nozzle angle. I recommend testing the cleaning effect: turn on your headlights facing a wall at night, and you'll immediately notice the beams become more focused after cleaning. However, avoid washing when the headlights are very hot, as thermal expansion and contraction can damage the lens coating. A quick tip: remind car wash attendants not to manually press the nozzles—my neighbor's car had its seal ring broken from pressing, causing leaks.

Driving a Crown in the north, the headlight washers are a lifesaver in snowy conditions. When driving at night and encountering mud splashed up by the vehicle ahead, simply keep the headlights on and press the windshield washer stalk on the right side of the steering wheel for 3 seconds. You'll see small nozzles extend from both sides of the headlights while the wipers are working. Here's an important driving tip: Always release the accelerator and keep the steering wheel steady to avoid liquid splashing during cleaning. Tested to work even in sub-zero temperatures, as the antifreeze washer fluid won't freeze. But remember to drive for a few minutes after washing to dry off the moisture. Last year, I parked immediately after use and ended up with frozen nozzles, having to thaw them with warm water. This feature only needs to be used two or three times a month—conserves your washer fluid too.


