For the 2011 Chevrolet Traverse, the low-beam headlights use H11 bulbs, while the high-beam headlights use 9005 bulbs. The daytime running lights also use 9005, so confirm which lighting function you are servicing before ordering replacements.
Front turn signals and parking lights use 4157NA bulbs. Front side markers use 194NA, while rear side markers use PC195. At the rear, the brake and tail lights use 7443R bulbs, and the rear turn signals use 7443. Reverse lights use 912 bulbs.
The center stop light and license plate lights are listed as LED, rather than replaceable bulb numbers. Interior fitments include 194 and 7441 for the glove box, 168 and 917 for map lights, 6411 and 6428 for the trunk, and 6612F for the vanity light. No fog-light bulb is listed for this fitment.