What maintenance can I do myself vs professional service?

You can safely handle routine checks like tire pressure, fluid top-offs, wiper blades, cabin air filters, and basic battery/visual inspections with the right tools and confidence. For anything involving brakes, engine cooling system service, transmission work, suspension/steering, diagnostics, or software updates on your used Scion, rely on a professional to avoid costly mistakes.

What This Means

Think of DIY maintenance as “small, frequent, non-invasive tasks.” On a used Scion, that often includes topping washer fluid, inspecting belts/hoses for cracking, replacing air filters when they’re due, and checking brakes and tires for uneven wear. If you’re tracking service intervals, these quick jobs help you catch issues early—especially on commuter Scions driven around Findlay weather swings.

Professional service is for systems where a small error can become a bigger repair. Examples: brake service (pads/rotors/calipers), radiator/thermostat replacement, transmission servicing, wheel bearing work, and any “check engine” light diagnosis.

Why It Matters

Regular maintenance protects drivability and helps prevent unexpected failures. In fact, one common industry estimate notes that about 1 in 3 vehicles have at least one maintenance need; keeping up with essentials can reduce the odds of falling behind. [Source]

Featured example: If your used Scion is feeling sluggish or the temperature gauge runs higher than normal, DIY “just add coolant” can mask a leak or a failing component that needs inspection. A shop can verify pressure integrity, test the cooling system, and confirm the correct parts for your exact model and mileage.

Your Next Steps

• Do DIY this week: check tire pressure (including the spare), inspect tread/brake pad indicators, and confirm wiper/air filter condition.
• Bring it in when you notice symptoms: grinding brakes, vibration on turns, overheating, shifting concerns, or any warning lights.
• Ask for a used Scion inspection: we’ll help prioritize what matters now vs what can wait, so you spend wisely.

If you’re unsure what’s safe to DIY on your used Scion—or want a practical service plan—get in touch with Cars On Main in Findlay, OH.