Chevrolet Impala 2009 Bulb Size
Bulb size chart
This page for the 2009 Chevrolet Impala helps you verify the correct bulb size by lighting position, so you can match the right replacement to the right socket. Whether you are changing a headlight, a tail lamp, or a small interior bulb, using the position-specific chart is the easiest way to avoid buying the wrong part.
The 2009 Impala uses a mix of halogen exterior bulbs and smaller interior bulbs, and some positions may vary by trim, lighting package, market, or body style. Use the bulb listings here as a guide for the exact location on the car, then compare the installed bulb before you order a replacement.
For fitment, always check whether your Impala has the standard halogen setup or an aftermarket LED conversion, since that can change the bulb you need or the way the lamp behaves. Trim and package differences can also affect items like fog lights, courtesy lights, and interior lamps. If you are replacing a bulb with an LED upgrade, make sure the new bulb matches the socket, polarity, and available space inside the housing. Before purchasing, remove the old bulb and confirm the number printed on it whenever possible, especially for positions that may have optional variations.
FAQ
What bulb size does the low beam use on a 2009 Chevrolet Impala?
The low beam headlight bulb is H11.
What bulb size does the high beam use on this model?
The high beam headlight bulb is H9.
What is the front turn signal bulb size for the 2009 Impala?
The front turn signal bulb is 4157NA.
What bulb does the parking light use?
The parking light bulb is 4157NA.
What is the rear brake light bulb size?
The brake light bulb is 3057R.
What bulb size is used for the tail light?
The tail light bulb is 3057R.
What bulb does the rear turn signal use?
The rear turn signal bulb is 3057.
What is the reverse light bulb size?
The back up reverse light bulb is 921.
What bulb size is used for the dome light and map light?
Both the dome light and map light use 578 bulbs.
What bulb is used for the trunk or cargo area light?
The trunk or cargo area light uses a 912 bulb.
What bulb size is listed for the license plate light?
The license plate light uses 194 or 7441.
Are the fog light bulbs the same on every 2009 Impala?
Not always. The fog light listing shows H11 LED or H16 LED, and fitment can depend on trim, package, or prior modifications.
Does the center high mount stop light use a standard bulb?
The center high mount stop light is listed as LED.
Why do some interior bulbs show two possible sizes?
Some interior positions, such as the glove box, stepwell, ash tray, and certain courtesy lights, are listed with 194 or 7441, while another courtesy light option is listed as 37. This reflects possible variation by trim or lamp design.
Should I check the old bulb before ordering replacements?
Yes. Checking the installed bulb is the best way to confirm fitment, especially on a 2009 Impala where trim and lighting package differences can affect certain positions.