When doing replacement or upgrading on 2003 – 2014 Toyota Matrix, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

Low Beam Headlight 2003 – 2014 9006
High Beam Headlight 2003 – 2014 9005
Front Fog Light 2003 – 2008 9006
2009 – 2014 H8/H11/H16
Back Up Light 2003 – 2014 921
Brake 2003 – 2014 7443
Daytime Running Light 2009 – 2014 9005
Dome Light 2003 – 2014 DE3175
Front Side Marker 2003 – 2008 1157NA
2009 – 2014 3457
Front Turn Signal 2003 – 2008 1157
2009 – 2014 3457NA
License Plate 2003 – 2014 168
Parking Light 2003 – 2008 1157
2009 – 2014 3357NA
Rear Side Marker 2003 – 2014 7443
Rear Turn Signal 2003 – 2014 7440NA
Tail Light 2003 – 2014 7443
Luggage Compartment 2003 – 2008 168
2009 – 2014 DE3175
Center High Mount Stop Light 2003 – 2008 921
Map Light 2003 – 2008 904