For the 2008 Chevrolet Tahoe, the low-beam headlight uses an H11 bulb, while the high beam uses a 9005. These are the primary headlight fitments for this model year.
The front turn signal and parking light use 4157NA. The daytime running light takes a 3157, and the reverse light uses 7440. The center stop light is an integrated LED unit.
Brake, tail, and rear turn-signal fitments vary by configuration. Base models use 3057R for the brake light, while Hybrid models use 3157R. For the tail and rear turn signal, Hybrid models use 3157R and 3157, respectively; LS models use 3057R and 3057. Check the vehicle configuration before ordering these bulbs.
Other listed bulbs include 194NA for the Hybrid front side marker and rear side marker, 212-2 for dome and map lights, and 921 for the trunk light. License plate lighting may use 2825 or 98.