2021 Buick Envision Bulb Size

tl;dr: This bulb size chart lists recommended replacement bulbs for a 2021 Buick Envision. As a practical mechanic, I organized sockets, amp ratings, and common equivalents so you can pick the right part quickly. Recommendation: verify your trim and model year before ordering and use the chart as a checklist to match front, rear, and interior bulbs. Impact: using correct bulbs saves time, prevents fit issues, and keeps lighting legal and safe. Risks: incorrect bulbs can blow fuses or fit poorly, and LED conversions may need resistors. Next steps: consult the chart, confirm part numbers, then order via the links if convenient. Affiliate disclaimer: some links are affiliate links; I may earn a small commission at no extra cost to you.