What is the model number of the Vios turn signal?

2 Answers
JakeMarie
07/24/25 10:23pm
The model number of the Vios turn signal is PY21. The function of the turn signal is to alert surrounding vehicles and pedestrians when the vehicle is turning. Taking the 2021 Vios as an example, it is a compact car with body dimensions of 4435mm in length, 1700mm in width, and 1490mm in height, a wheelbase of 2550mm, a fuel tank capacity of 42 liters, and a curb weight of 1070kg. The 2021 Vios features a MacPherson strut front suspension and a torsion beam rear suspension. It is equipped with a 1.5L naturally aspirated engine, delivering a maximum horsepower of 110PS, a maximum power of 81kW, and a maximum torque of 138Nm, paired with a 5-speed manual transmission.
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VonKendra
08/10/25 2:59pm
The turn signal bulb model for the Vios is typically W21W. I've driven this car for a long time, and based on experience, this model is quite standard. When replacing it, remember to turn off the power first to avoid short-circuiting and damaging the electrical system. Be gentle when removing the lamp cover—don’t use excessive force to avoid breaking the plastic parts. After installing the bulb, test whether the flashing is normal. If you buy the wrong model, such as one with poor compatibility, it may cause rapid flashing or failure to light up, affecting driving safety and drawing attention from traffic police. It’s recommended to check the bulb condition every six months and replace any burnt-out bulbs immediately. It’s best to keep an original spare part in the car so you can handle unexpected situations yourself, saving both money and hassle.
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