2018 Toyota Sienna Pre-Purchase Inspection Checklist
Known Issues — 2018 Toyota Sienna
MODERATE
Power sliding door motor failures
MODERATE
V6 oil consumption
MODERATE
AC evaporator leaks
MINOR
Paint chipping on front bumper and leading edges
MINOR
Infotainment Entune system lag
What to Inspect
- Test power sliding doors multiple times
- Check oil level for V6 consumption
- Test AC cooling performance
- Inspect front bumper paint
- Test Entune system
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Oil change (V6) | every 5,000 miles | $70-$100 |
| Transmission fluid | every 60,000 miles | $130-$180 |
| Spark plugs | every 60,000 miles | $120-$200 |
| Brake pads (front) | every 40,000 miles | $100-$170 |
| AC service | as needed | $100-$300 |
| Coolant flush | every 100,000 miles | $100-$160 |
Get a Personalized AI Inspection Report
The data above covers common issues. For a comprehensive, AI-generated report specific to this vehicle — including detailed checks for every system, red flags, and a full verdict — generate your free report below.
2 free reports per day · No account needed
More Toyota Inspection Checklists
Maintenance Guides for Toyota Owners
Want a complete buying guide? Read ourUsed Car Buying Inspection Checklist.
