When doing replacement or upgrading on 2008 – 2018 Buick Enclave, 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 2008 – 2012 D1S
2013 – 2018 D3S
Front Fog Light 2008 – 2012 H8/H11/H16
Back Up Light 2008 – 2018 921
Brake 2008 – 2018 7443
Daytime Running Light 2008 – 2012 3157
Dome Light 2008 – 2018 212-2
Front Side Marker 2008 – 2012 12396NA
2013 – 2018 12961
Front Turn Signal 2013 – 2018 7444NA
2008 – 2012 HPC24NA
License Plate 2008 – 2018 168
Parking Light 2008 – 2012 12396NA
2013 – 2018 194
Rear Side Marker 2008 – 2018 194
Rear Turn Signal 2008 – 2018 7443
Glove Box 2008 – 2012 194
Inner Tail Light 2008 – 2018 194
Map Light 2008 – 2018 194
Outer Tail Light 2008 – 2018 7443