Buick LeSabre 2003 Bulb Size
Bulb size chart
Looking for bulb sizes for the 2003 Buick LeSabre? This page helps you verify the correct bulb by lighting position, so you can match the right part to the right socket before you buy. Whether you are replacing an exterior signal lamp or a small interior bulb, checking the exact location is the easiest way to avoid a mismatch.
The 2003 Buick LeSabre uses several different bulb types depending on where the light is installed. High beam headlight bulbs use 9005, while many interior and courtesy locations use small wedge-style bulbs such as 194, 7441, 578, 161, or 211-2. Because trim and lighting equipment can vary, it is always smart to confirm the bulb position on the vehicle and compare it with the chart before installation.
Fitment can vary by trim, body style, market, and lighting package, so the same 2003 Buick LeSabre may not use every bulb listed here. If you are switching from halogen to LED, make sure the replacement is compatible with the socket, polarity, and available space inside the housing. Some aftermarket LED conversions may require additional load resistors, hyperflash fixes, or a different beam pattern to work properly. Before ordering, check the bulb currently installed in the vehicle whenever possible, since the old bulb marking is often the fastest way to confirm the correct replacement.
FAQ
What is the high beam headlight bulb size for a 2003 Buick LeSabre?
The high beam headlight bulb size listed for the 2003 Buick LeSabre is 9005.
What bulb does the daytime running light use on this model year?
The daytime running light bulb size listed for the 2003 Buick LeSabre is 3156.
What are the front turn signal and parking light bulb sizes?
Both the front turn signal light and the front parking light use 3157 bulbs on this vehicle.
What bulb is used for the brake light and outer tail light?
The brake light bulb and the outer tail light bulb are listed as 3057R.
What bulb fits the rear turn signal and back up reverse light?
The rear turn signal light bulb and the back up reverse light bulb are both listed as 3057.
What is the center high mount stop light bulb size?
The center high mount stop light bulb is listed as 3155, and it is noted as optional in the bulb chart.
Which bulb is used for the dome, map, and courtesy lights?
The dome light, map light, and courtesy light all use 578 bulbs.
What bulb sizes fit the glove box and interior door lights?
The glove box light and interior door light are listed with 194 and 7441 bulb options.
What bulb is used for the vanity mirror light?
The vanity mirror light bulb size listed for the 2003 Buick LeSabre is 7065.
What bulb fits the license plate light?
The license plate light bulb size listed for this model is 161.
What bulb is used for the trunk or cargo area light?
The trunk or cargo area light bulb is listed as 211-2.
Are all 2003 Buick LeSabre models guaranteed to use the same bulbs?
Not always. Trim level, body style, market, and lighting package can change the bulb used in certain positions, so it is best to verify the installed bulb and compare it to the chart.
Can I replace the original bulbs with LED bulbs?
Yes, many positions can be converted to LED, but you should confirm socket fit, polarity, and physical clearance. Some exterior LED upgrades may also need extra parts to prevent flashing or warning issues.
Should I check the old bulb before buying a replacement?
Yes. Checking the installed bulb is one of the best ways to confirm fitment, especially when the vehicle has been modified or when the trim/package may differ from the standard chart.