What is the reason why the Corolla cannot switch to high beam?
2 Answers
Corolla cannot switch to high beam because the automatic headlights are turned on. Here are the relevant explanations: 1. Automatic headlights: Automatic headlights are light-sensitive control systems installed by some car manufacturers for user convenience. When the light intensity is greater or less than a certain value, the headlights will automatically turn on or off. 2. Notes: The activation of automatic headlights has a delay, meaning the headlights will only turn on automatically within a dozen seconds after the light-sensing system detects the dimming of light. According to traffic regulations, cars must turn on their headlights before entering a tunnel. Therefore, it is still necessary to manually turn on the headlights in advance when passing through a tunnel.
I've been driving a Corolla for almost ten years and have encountered the issue of the high beams not switching a few times, usually caused by a faulty switch button. The Corolla's high beam switch is on the turn signal stalk, and over time, the contacts can wear out or accumulate dust, leading to no response when switching. Another common cause is a faulty relay. The Corolla's relay is located in the fuse box and is prone to aging and failure. Loose wiring connections are also a culprit, especially in areas with high moisture like the chassis, where rusted connections can interrupt the signal. If all the lights are on but you can't switch them, prioritize checking the switch and relay. Once, I was too lazy to fix it and almost got into an accident while driving on the highway at night because it was too dark. I recommend going to a 4S shop or a professional repair shop for inspection as soon as possible. Replacing the parts isn't expensive, and safety comes first. Don't try to fix it yourself; you might end up damaging more things.
