When upgrading the stock halogen / incandescent lamps to led lighting bulbs, the bulb size guide will be much helpful, below are the bulb size guide for 2012~2017 Chevrolet Sonic; yet it is for reference only, it is suggested to check the owner manual to confirm the bulb size guide is correct before purchasing.
- High beam headlight: 9005 / 9005LL;Low beam headlight: H11 /H11LL
- Fog light: H8 / H8LL
- Front turn signal light ( blinker light)/ Parking light: 7444NA / 7443-SCK
- Rear turn signal light: 4157NA / 4157NAKLCP / 3157-SCK
- Brake light / Tail light: 7443 / 7443LL / 7443-SCK
- Back-up reverse light for the submodel Sedan: 3157 / 3157K / 3157-SCK for the submodel Hatchback: 921
- License plate light / Tag light: 2825 / W5W / 2825 L
- Interior Dome light: 6411
- Interior Map light : 2825 / 2825L
- 3rd Brake light / Center high mount stop light: LED
- Trunk / Cargo Area light: 175
