Unfortunately, there isn't a single definitive location; the exact fuse location and even the fuse rating can vary slightly based on the specific options package on your Trailblazer.
To find it, you need to:
1. Consult your owner's manual: This is the most reliable source. Look for the section on fuses, diagrams, and descriptions. It will specify the fuse location and amperage.
2. Check the fuse box under the dash: Open the driver's side door, look under the dash, often near the steering column, for a fuse box cover. It may be hinged, or require removal of a panel. Inside, you'll find a fuse panel diagram or a sticker showing which fuse controls what.
3. Check the center console fuse box (if equipped): Some Trailblazers have an additional fuse box in the center console. Again, check the cover or diagrams for the location of the heated seat fuse.
The fuse is likely labeled as "Heated Seats," "Seat Heaters," or something similar. If you can't locate it, take a picture of your fuse box diagrams and check online forums or Chevrolet enthusiast websites; someone may have a picture that matches your layout.
Remember to always turn off the ignition before checking or replacing fuses.
