To find the correct fuse:
1. Consult your owner's manual: This is the best place to start. The manual should have a diagram of the fuse box and list what each fuse controls. Look for a fuse related to "heated seats," "power seats," or something similar.
2. Locate the interior fuse block: This is usually located under the dashboard, often near the steering column. Some models might have it in the glove compartment.
3. Check the fuses: Once you've identified the potential fuses (based on your owner's manual), carefully inspect each one. Look for a blown fuse (a broken filament in the fuse). Replace any blown fuses with the correct amperage rating (this will also be specified in your manual).
Important Considerations:
* If replacing the fuse doesn't solve the problem: The issue might not be the fuse. The problem could be a wiring issue, a faulty seat heater element, or a problem with the seat switch itself. This will require more in-depth troubleshooting or professional repair.
* Fuse numbers can vary: Even within the 2002 GMC Envoy model year, different trim levels and options might have different fuse layouts. Therefore, relying solely on information found online without referencing *your* owner's manual is risky. The owner's manual is tailored to your exact vehicle configuration.
Without your owner's manual, I cannot give you the precise fuse number. Please refer to your manual first.
