Why does only one reverse light illuminate on the 2021 Corolla?
2 Answers
The 2021 Corolla has only one reverse light because this design is intended to better capture the driver's attention. Symmetrical lighting on both sides might cause a numbing effect, leading drivers to mistakenly perceive an oncoming vehicle as moving in reverse. Typically, the reverse light is positioned with the left fog light and right reverse light. This configuration is due to the driver's seat being on the left side in China, allowing better visibility of oncoming vehicles with the fog light on the left, while the right-side reverse light facilitates nighttime parking maneuvers on the right side of the road. The Corolla is a compact car under FAW Toyota. Taking the 2021 Corolla 1.2T S-CVT Pioneer PLUS edition as an example, it is powered by a 1.2L inline four-cylinder turbocharged engine with an aluminum alloy structure, delivering a maximum power of 85kW and a maximum torque of 185Nm, paired with a 10-speed continuously variable transmission.
My 2021 Corolla had only the right-side reverse light working last month. At first, I thought it might be a design issue, but upon checking, I found that the left bulb had burned out. Common causes for this problem include bulb failure, aging or short-circuited wiring, blown fuses, or loose plug connections causing poor contact. In models like the Corolla, reverse lights should normally illuminate on both sides, so a single-side failure is definitely abnormal. I promptly replaced the new bulb to fix it. If left unaddressed, it would make reversing at night difficult due to poor visibility, increasing the risk of collisions. Next time I encounter a similar situation, I’d recommend starting with the basics—checking the fuse box for abnormalities—and if that doesn’t work, getting it repaired promptly.
