What Causes the Flashing in Front of the Car Windshield?
3 Answers
The flashing in front of the car windshield is caused by the anti-theft indicator light. Anti-theft indicator light explanation: If the car's engine anti-theft light flashes at a frequency of once every 1 to 2 seconds, it is normal. This indicates that the vehicle's engine has entered the anti-theft mode, and the engine anti-theft system is functioning properly. This is a normal phenomenon and does not require the owner to deactivate it. Additionally, the power consumption is negligible and poses no issue for the battery. Purpose of car anti-theft devices: Installing an anti-theft device can increase the difficulty and risk for thieves attempting to steal the car. It is recommended that owners consult with the car manufacturer before installation to determine if it is necessary or possible to install one. Moreover, always purchase branded products from authorized dealers. Otherwise, the manufacturer may refuse warranty claims on the grounds of unauthorized modifications to the wiring, or improper installation or use of non-standard products may lead to vehicle malfunctions.
I've been driving for over twenty years, and windshield glare is all too common. Most of the time, it's just light playing tricks—sunlight reflecting off the chrome bumper or rearview mirror of the car in front of you, causing constant flickering on your glass. Sometimes, when the windshield isn't cleaned properly, dust and oily residue mix together, and under the sun, it looks like a layer of gold dust has been sprinkled. Rainy days are even more annoying—worn-out wipers leave streaks, and water droplets refract light like a flash. I always keep a degreaser handy and give the windshield a thorough cleaning every couple of weeks. If the tint film starts bubbling, I replace it; modern high-definition films rarely have this issue. These small details really can't be overlooked—glare at high speeds can easily lead to accidents.
After ten years in auto repair, I've seen too many cases of windshield glare. Eighty percent are due to oil film buildup on the windshield, especially after highway driving where the front end gets covered with bug splatter mixed with exhaust soot, creating a rainbow-like film under sunlight. Thirty percent of customers report glare caused by bubbling window tint, with substandard films guaranteed to cause problems within three years. There are also rare but dangerous cases: when the inner windshield gets sprayed with cleaner leaving a hazy residue, oncoming headlights at night scatter into blinding halos. I recommend using specialized scrapers with pH-neutral cleaners to remove oil film every 5,000 km, and immediately replacing loose wiper springs - otherwise the curved water streaks they create will amplify glare.
