What is the 2017 chevy trax headlight bulb size?

The 2017 Chevrolet Trax can Make use of a 9005 for both the headlight high and low, or if you want to go separately, you can use the 9005 for the high beams and the H11 for the lows. 9005s tend to be cheap, at only $3 a pop, while the H11s run about $8. You'll obviously spend more if you upgrade from the common halogens to LEDs, but going the latter route gives you longer life and brighter lights. If you're also replacing your front fog light, you'll want to use an H8 for that; running lights are going to be 7443s, as are the brakes, parking lights and tail lights, so buying a set of those would give you the best value for your money.