To be sure, you should:
* Consult your owner's manual: This is the best resource for the precise location in your specific vehicle.
* Check online forums: Search for "2000 Chevy Blazer inertia switch location" on forums like ChevyTalk or similar sites. Owners often post pictures and detailed instructions.
* Look carefully under the dashboard: It's usually a small, square or rectangular box, often with a reset button.
If you can't find it after searching these places, it's best to consult a mechanic.