Chevrolet Tahoe 2020 Bulb Size
Bulb size chart
This page helps you find the correct bulb sizes for the 2020 Chevrolet Tahoe by lighting position, so you can match the right replacement to the right lamp. Whether you are changing a headlight, reverse light, license plate light, or an interior bulb, checking the exact location first makes the job faster and helps avoid ordering the wrong part.
The 2020 Chevrolet Tahoe uses a mix of LED, halogen, and HID-related bulb setups depending on the lamp position and equipment level. That means the correct bulb can change by function, and in some cases by trim or lighting package, so this guide is organized to help you verify each bulb size before you buy or install anything.
Fitment can vary by market, trim, body style, and lighting package, so always compare the bulb chart with your Tahoe’s current setup before ordering. Some positions use LED assemblies, while others use replaceable bulbs, and headlight fitment can differ between halogen and HID-equipped models. If you are considering aftermarket LED or HID conversions, make sure the bulb base, housing design, and beam pattern are compatible with your vehicle and local regulations. The safest approach is to check the bulb already installed in the vehicle or confirm the part number from the owner’s manual or the existing lamp before purchase.
FAQ
What bulb does the 2020 Chevrolet Tahoe use for the low beam headlight on halogen models?
Halogen-equipped 2020 Chevrolet Tahoe models use an H11 bulb for the low beam headlight.
What bulb fits the low beam on Tahoe models with HID headlights?
Tahoe models with HID headlights use a D3S bulb for the low beam.
What is the high beam bulb size for the 2020 Tahoe?
The high beam headlight bulb is 9005.
What bulb does the front turn signal use on the 2020 Chevrolet Tahoe?
The front turn signal bulb is 7440A.
What bulb is used for the rear turn signal on this Tahoe?
The rear turn signal bulb is 7440.
What bulb fits the brake light on the 2020 Tahoe?
The brake light bulb is 7440R.
What is the reverse light bulb size for the 2020 Chevrolet Tahoe?
The back up reverse light bulb is 921.
What bulb is used for the license plate lights?
The license plate light bulb is listed as 2825, 98.
What fog light bulb does the 2020 Tahoe use?
The front fog light bulb is PSX26W, 12278.
Are the parking lights and side marker lights replaceable bulbs on the 2020 Tahoe?
Yes. The page lists LED fitment for the parking light bulb, front side marker light bulb, and rear side marker light bulb.
Does the 2020 Chevrolet Tahoe use LED bulbs in the interior?
Yes. The chart lists LED fitment for the trunk or cargo area light, dome light, map light, and interior door light.
What bulb is used for the center high mount stop light?
The center high mount stop light bulb is listed as LED.
Do daytime running lights use the same bulb on all 2020 Tahoe models?
No. The daytime running light bulb differs by headlight type: models with HID headlights use an LED setup, while models with halogen headlights use a 9005 bulb.
Should I verify the bulb before buying replacements for my Tahoe?
Yes. Because trim and lighting package differences can affect fitment, it is best to confirm the installed bulb or match the vehicle’s exact lighting configuration before purchasing.