For the 2004 Chevrolet Impala, the supplied fitment data lists a 9005 bulb for the high beam and daytime running light. No low-beam bulb is listed in the provided data, so confirm the low-beam application on the vehicle before ordering. The fog lights use 893 bulbs.
- Front turn signals and parking lights use 3457A.
- Front and rear side markers use 194NA.
- Rear turn signals use 3057, while the tail and brake lights use 3057R.
- The center stop light is listed as LED.
- Reverse lights use 921.
- License plate, ash, courtesy, glove box, and map-light applications may use 194 or 7441 according to the supplied data.
- The dome light uses 578, and the trunk light uses 912.
Because no low-beam size or headlight-type distinction is provided, verify the existing bulb and housing before replacing the low-beam lamp.