2021 GMC Canyon Bulb Size

Goal: Help you find the correct bulb sizes for a 2021 GMC Canyon so you replace lights quickly and safely. Many owners waste time guessing sizes and buying wrong parts; this chart removes that uncertainty and highlights common trade-offs like halogen versus LED. Prerequisites and step by step are simple: confirm the trim and model year, compare the socket types shown in the chart to the bulb in your vehicle, and refer to the owner's manual as a secondary validation. If you buy online, note the recommended wattage and fitment notes before ordering to avoid fit or cooling constraints. Validation and troubleshooting: test bulbs after installation and check for dashboard errors or flicker. If a fit issue appears, verify part numbers and physical socket shape. Affiliate disclaimer: some links on the page are affiliate links, and I may earn a commission at no extra cost to you. This helps maintain the chart.