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 2006~2011 Chevrolet HHR; 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 and Low beam headlight: H13;
- Fog light for 2006~2007 Chevy HHR: 9140; for 2008~2011 Chevy HHR submodel SS or SS Panel: H11 / H8 / H8LL / H11LL ; for 2008~2011 Chevy HHR submodel LS, LS Panel, LT or LT Panel: 9140
- Front turn signal light ( blinker light)/ Parking light: 3157 / 3157K / 3157-SCK
- Rear turn signal light/Brake Tail light: 3057 / 3057KX / 3157-SCK
- Back-up reverse light: 921 / 921K
- 3rd Brake light / Center high mount stop light: 921
- License plate light / Tag light: 168
- Interior Dome light: 578
- Interior Map light: 2825 / 2825L / W5W
- Glove box Light: 194
- Luggage compartment light: 212-2
- Auto Trans indicartor light: 37
- Front & Rear side marker light: 194
Vehicles includes: 2006, 2007, 2008, 2009, 2010, 2011 Chevrolet ( Chevy ) HHR
