Chevrolet TrailBlazer 2005 Bulb Size
Bulb size chart
This page helps you find the correct bulb sizes for the 2005 Chevrolet TrailBlazer by lighting position, so you can match the right bulb to the right socket before you buy. Because different lamps on this SUV use different bulb types, checking the exact location is the easiest way to avoid ordering the wrong part.
Use the bulb chart on this page as a quick fitment guide for exterior and interior lights, including headlights, brake lights, turn signals, license plate lights, dome lights, and more. It is especially useful when replacing one bulb at a time or when you want to compare the original bulb size with an LED upgrade.
Fitment can vary by trim, lighting package, market, and body style, so it is smart to confirm what is actually installed on your TrailBlazer before purchasing replacements. Some positions may use halogen bulbs from the factory, while others may be converted to LED by a previous owner or by an aftermarket kit. If you are planning an LED swap, check for bulb depth, connector style, beam pattern, and any need for resistors or anti-flicker parts. For the most reliable result, remove the old bulb and compare its base and markings to the bulb size listed here before ordering.
FAQ
What bulb does the 2005 Chevrolet TrailBlazer use for the high beam headlight?
The high beam headlight bulb listed for the 2005 Chevrolet TrailBlazer is 9005.
What is the daytime running light bulb size on this model year?
The daytime running light bulb size is 9005 on the 2005 Chevrolet TrailBlazer.
What bulb size is used for the front turn signal and parking light?
Both the front turn signal light and the parking light are listed as 3757A.
What bulb is used for the front fog lights?
The front fog light bulb size listed for this vehicle is 880.
What bulb fits the rear brake light and tail light?
The brake light bulb and tail light bulb are both listed as 3157R.
What is the rear turn signal bulb size?
The rear turn signal light bulb is listed as 3157.
What bulb does the back-up reverse light use?
The back-up reverse light bulb is listed as 3157.
What size is the front side marker bulb?
The front side marker light bulb is listed as 194NA.
What bulb is used for the license plate lights?
The license plate light bulb is listed as 2825 or 98.
What bulb fits the dome light and cargo area light?
The dome light bulb and trunk or cargo area light are both listed as 212-2.
What bulb is used for the map light, glove box light, and courtesy light?
Those interior positions are listed with 194 or 7441 bulb sizes.
Does the 2005 Chevrolet TrailBlazer use an LED center high mount stop light bulb?
Yes, the center high mount stop light bulb is listed as LED on this page.
Why should I check the installed bulb before buying replacements?
Because trim and lighting package differences can change fitment, and some vehicles may already have aftermarket bulbs installed. Verifying the bulb in the socket helps confirm the correct base and size before you order.
Can I replace the factory bulbs with LEDs on this TrailBlazer?
Yes, many positions can be upgraded to LED, but you should confirm fitment, polarity, and beam pattern. Some exterior LED conversions may also need load resistors or other compatibility parts to prevent warning issues or fast flashing.