Tesla Model Y 2021 Bulb Size
Bulb size chart
This 2021 Tesla Model Y bulb size page helps you verify the correct bulb type by lighting position, so you can quickly match the right replacement for each exterior and interior light. Because Tesla uses LED lighting for many functions on the Model Y, the exact fit can depend on the light location and the equipment installed on your vehicle.
Use this page as a practical reference when checking the headlight, fog light, brake light, turn signal, license plate light, tail light, daytime running light, reverse light, and cabin lights. It is designed to make bulb lookup easier for the 2021 Tesla Model Y, especially when you want to confirm which lighting position uses LED components before ordering parts.
Fitment can vary by market, trim, body style, and lighting package, so it is smart to confirm the exact setup on your vehicle before buying anything. Some Model Y lighting systems are LED from the factory, while others may differ in how the assembly is configured, and aftermarket conversions can change what is needed. If you are replacing a bulb or light module, check the installed part first and compare it with the vehicle’s current equipment so you do not order the wrong item.
FAQ
What bulbs does the 2021 Tesla Model Y use for the headlights?
The 2021 Tesla Model Y page lists the headlight high beam and low beam as LED. That means the headlight system is not a standard replaceable halogen bulb setup on this page, and the lighting is identified by position rather than a traditional bulb number.
Are the front fog lights on the 2021 Model Y LED?
Yes. The front fog light bulb position is listed as LED for the 2021 Tesla Model Y. Always verify the exact front lighting configuration on your vehicle before purchasing replacement parts.
Does the 2021 Tesla Model Y use LED brake lights?
Yes, the brake light bulb position is listed as LED. If you are diagnosing a rear lighting issue, check whether the problem is in the LED module, wiring, or housing rather than assuming a simple bulb swap.
What about the turn signals on this model year?
The 2021 Tesla Model Y lists LED turn signal lighting for both the front and rear positions. Since these are LED applications, the replacement method may differ from a conventional bulb replacement.
Is the license plate light LED on the 2021 Model Y?
Yes. The license plate light bulb position is listed as LED. This is one of the easier exterior lighting points to verify, but you should still confirm the installed part and housing style before ordering.
Are the daytime running lights and parking lights LED?
Yes. The page lists both the daytime running light bulb position and the parking light bulb position as LED for the 2021 Tesla Model Y. These functions are often integrated into the vehicle’s lighting design.
What is listed for the back up reverse light on the 2021 Tesla Model Y?
The back up reverse light bulb position is listed as LED. Some vehicles may also have related rear lighting differences by market or trim, so it is best to verify the exact rear lamp setup on the car.
Does the 2021 Model Y have LED interior lights too?
Yes. The page includes LED listings for the glove box light, trunk or cargo area light, dome light, and interior door light. These interior positions are useful to check if you are replacing cabin or cargo lighting.
Are the side marker lights LED on this year and model?
Yes. Both the front side marker light bulb position and the rear side marker light bulb position are listed as LED on the 2021 Tesla Model Y.
Can trim level or market change the bulb fitment on a 2021 Tesla Model Y?
Yes. Trim, lighting package, body style, and market can affect fitment. That is why it is important to use the lighting position on this page as a guide and confirm the exact vehicle configuration before buying parts.
Should I compare the installed bulb before ordering a replacement?
Absolutely. Even when a page lists LED, the best practice is to check the installed bulb, module, or housing on your specific vehicle before purchase. This helps avoid ordering the wrong part, especially if your Model Y has been modified or repaired.
Can I convert a non-LED light to LED on the 2021 Tesla Model Y?
Aftermarket conversions are possible in some cases, but fitment, compatibility, and warning messages can vary. If you are considering a conversion, make sure the replacement is compatible with the vehicle’s electrical system and the specific light position.