2021 Toyota Sequoia Pre-Purchase Inspection Checklist
Known Issues — 2021 Toyota Sequoia
CRITICAL
Secondary air injection pump failure
CRITICAL
Rear air suspension failures
MODERATE
Exhaust manifold cracks
MINOR
No significant updates in final year before full redesign
MINOR
Fuel economy remains very poor
What to Inspect
- Scan for air injection codes
- Test rear suspension function
- Check exhaust manifolds at cold start
- Verify all three rows of seating
- Test all power features and connectivity
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Oil change (5.7L V8) | every 5,000 miles | $90-$120 |
| Differential fluid (front & rear) | every 30,000 miles | $130-$200 |
| Transfer case fluid | every 60,000 miles | $80-$130 |
| Spark plugs (5.7L) | every 90,000 miles | $200-$350 |
| Air suspension service | as needed | $500-$2,000 |
| Brake pads (front) | every 40,000 miles | $130-$200 |
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