When doing replacement or upgrading on 2013 – 2018 Buick Encore capsule halogen headlamps with, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

Low Beam Headlight 2013 – 2016 H11
High Beam Headlight 2013 – 2016 9005
Front Fog Light 2013 – 2016 H8/H11/H16
Back Up Light 2013 – 2016 921
Brake 2013 – 2016 7443
Daytime Running Light 2013 – 2016 H8/H11/H16
Dome Light 2013 – 2016 578
Front Side Marker 2013 – 2016 7444NA
Front Turn Signal 2013 – 2016 7443NA
License Plate 2013 – 2016 12961
Parking Light 2013 – 2016 7444NA
Rear Turn Signal 2013 – 2016 7440NA
Tail Light 2013 – 2016 7443
Map Light 2013 – 2016 12961
Low Beam Headlight 2017 – 2018 H11
High Beam Headlight 2017 – 2018 9005
Front Fog Light 2017 – 2018 H8
Back Up Light 2017 – 2018 921
Dome Light 2017 – 2018 6411
License Plate 2017 – 2018 194
Rear Turn Signal 2017 – 2018 7440NA
Map Light 2017 – 2018 12961