2021 Genesis G90 Bulb Size

Goal: help you quickly find the correct bulb sizes for a 2021 Genesis G90 so you avoid wrong purchases and wasted time. Start by identifying the lamp location and comparing the chart entry to the stock part number. That reduces a common source of confusion. Prerequisites and step by step: have your owner’s manual or remove a lamp to confirm fitment. Use the chart as a cross-reference, then decide on OEM versus aftermarket options based on the trade-off between brightness and longevity. My recommended assumption is to match socket type first, then consider lumen and color temperature. Validation and troubleshooting: test bulbs before final installation and check for error messages or fit issues. Note constraints like CAN-bus compatibility. Some links on this page are affiliate links; if you buy through them I may earn a small commission at no extra cost to you.