When doing replacement or upgrading on 2001 – 2018 Toyota Prius C Plug-In Prime V capsule halogen headlamps HID LED Lights Parking with without, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

High Beam and Low Beam Headlight 2001 – 2003 9003
Back Up Light 2001 – 2003 921
Brake 2001 – 2003 7443
Dome Light 2001 – 2003 DE3175
Front Side Marker 2001 – 2003 168
Front Turn Signal 2001 – 2003 7440NA
License Plate 2001 – 2003 168
Parking Light 2001 – 2003 168
Rear Turn Signal 2001 – 2003 7440
Tail Light 2001 – 2003 7443
Center High Mount Stop Light 2001 – 2003 168
Trunk 2001 – 2003 194
Low Beam Headlight 2010 – 2015 H11
High Beam Headlight 2010 – 2015 9005
High Beam and Low Beam Headlight 2004 – 2009 9003
Front Fog Light 2004 – 2009 9006
2010 – 2015 H8/H11/H16
Back Up Light 2004 – 2015 7440
Daytime Running Light 2012 – 2015 9005
Dome Light 2004 – 2015 DE3175
Front Side Marker 2004 – 2015 194
Front Turn Signal 2004 – 2015 7440NA
License Plate 2004 – 2009 168
2010 – 2015 194
Parking Light 2004 – 2009 12961
2010 – 2015 194
Rear Turn Signal 2004 – 2015 7440NA
Tail Light 2004 – 2009 194
Luggage Compartment 2004 – 2015 DE3022
Courtesy 2004 – 2009 168
Interior Door 2010 – 2015 194
Map Light 2010 – 2011 168
2004 – 2009, 2012 – 2015 194
High Beam and Low Beam Headlight 2004 – 2005 D2R
2006 – 2009 D4R
Front Fog Light 2004 – 2009 9006
Back Up Light 2004 – 2009 7440
Dome Light 2004 – 2009 DE3175
Front Side Marker 2004 – 2009 194
Front Turn Signal 2004 – 2009 7440NA
License Plate 2004 – 2009 168
Parking Light 2004 – 2009 12961
Rear Turn Signal 2004 – 2009 7440NA
Tail Light 2004 – 2009 194
Luggage Compartment 2004 – 2009 DE3022
Courtesy 2004 – 2009 168
Map Light 2004 – 2009 194
Back Up Light 2016 – 2018 921
Dome Light 2016 – 2018 DE3175
Front Turn Signal 2016 – 2018 7440NA
Rear Turn Signal 2016 – 2018 7440NA
Luggage Compartment 2016 – 2018 194
Interior Door 2016 – 2018 194
Map Light 2016 – 2018 168
Back Up Light 2016 – 2018 921
Dome Light 2016 – 2018 DE3175
Front Turn Signal 2016 – 2018 7444NA
Parking Light 2016 – 2018 7444NA
Rear Turn Signal 2016 – 2018 7440NA
Luggage Compartment 2016 – 2018 194
Interior Door 2016 – 2018 194
Map Light 2016 – 2018 168
Low Beam Headlight 2012 – 2014 H11
High Beam Headlight 2012 – 2014 9005
Front Fog Light 2012 – 2014 H8/H11/H16
Back Up Light 2012 – 2018 921
Daytime Running Light 2012 – 2014 9005
Dome Light 2012 – 2018 194
Front Side Marker 2012 – 2014 12961
2015 – 2018 194
Front Turn Signal 2012 – 2014 7440NA
2015 – 2018 7444NA
License Plate 2012 – 2014 12961
2015 – 2018 194
Parking Light 2012 – 2014 12961
2015 – 2018 7443NA
Rear Side Marker 2012 – 2014 12961
Rear Turn Signal 2012 – 2018 7440NA
Tail Light 2012 – 2014 12961
Luggage Compartment 2012 – 2014 12961
2015 – 2018 194
Map Light 2012 – 2014 168
2015 – 2018 194
Low Beam Headlight 2012 – 2015 H11
High Beam Headlight 2012 – 2015 9005
Front Fog Light 2012 – 2015 H8/H11/H16
Back Up Light 2012 – 2015 7440
Daytime Running Light 2012 – 2015 9005
Dome Light 2012 – 2015 DE3175
Front Side Marker 2012 – 2015 194
Front Turn Signal 2012 – 2015 7440NA
License Plate 2012 – 2015 194
Parking Light 2012 – 2015 194
Rear Turn Signal 2012 – 2015 7440NA
Luggage Compartment 2012 – 2015 DE3022
Interior Door 2012 – 2015 194
Map Light 2012 – 2015 194
Back Up Light 2017 – 2018 921
Dome Light 2017 – 2018 DE3175
Luggage Compartment 2017 – 2018 194
Interior Door 2017 – 2018 194
Map Light 2017 – 2018 168
Low Beam Headlight 2012 – 2018 H11
High Beam Headlight 2012 – 2018 9005
Front Fog Light 2015 – 2018 H8/H11/H16
Back Up Light 2012 – 2018 7440
Daytime Running Light 2012 – 2018 9005
Dome Light 2012 – 2018 DE3175
Front Side Marker 2015 – 2018 168
2012 – 2014 194
Front Turn Signal 2012 – 2014 7440NA
2015 – 2018 7443NA
License Plate 2015 – 2018 168
2012 – 2014 194
Parking Light 2015 – 2018 168
2012 – 2014 194
Rear Turn Signal 2012 – 2018 7440NA
Luggage Compartment 2012 – 2014 DE3022
2015 – 2018 DE3175
Interior Door 2012 – 2018 194
Map Light 2015 – 2018 168
High Beam Headlight 2012 – 2014 9005
Front Fog Light 2015, 2017 – 2018 H16
2012 – 2014, 2016 H8/H11/H16
Back Up Light 2012 – 2018 7440
Daytime Running Light 2012 – 2014 9005
Dome Light 2012 – 2018 DE3175
Front Side Marker 2012 – 2014 194
Front Turn Signal 2012 – 2018 7440NA
License Plate 2015 – 2018 168
2012 – 2014 194
Parking Light 2012 – 2014 194
Rear Turn Signal 2012 – 2018 7440NA
Luggage Compartment 2012 – 2018 DE3022
Interior Door 2012 – 2018 194
Map Light 2015 – 2018 168