2021 Toyota 4Runner Pre-Purchase Inspection Checklist
Known Issues — 2021 Toyota 4Runner
MODERATE
Transmission shuddering and hesitation during acceleration
MINOR
Panoramic sunroof wind noise and rattling
MINOR
Dashboard cracking and warping in high heat conditions
MODERATE
Rear differential noise and potential seal leaks
MODERATE
HVAC blend door actuator failure causing temperature control issues
MINOR
Infotainment system freezing and touchscreen responsiveness problems
What to Inspect
- Transmission fluid condition and shift quality during test drive
- Panoramic sunroof operation and seal integrity
- Differential fluid level and condition for leaks
- HVAC system temperature control and actuator function
- Dashboard surface for cracks and warping
- Infotainment system responsiveness and software version
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Oil and filter change | every 10,000 miles | $65-$85 |
| Transmission fluid change | every 60,000 miles | $150-$200 |
| Differential fluid change | every 50,000 miles | $120-$180 |
| Air filter replacement | every 15,000 miles | $35-$50 |
| Cabin air filter replacement | every 15,000 miles | $40-$65 |
| Spark plug replacement | every 120,000 miles | $200-$300 |
| Brake fluid flush | every 24 months | $100-$150 |
| Coolant flush | every 100,000 miles | $120-$180 |
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