Average Reliability

2025 Chevrolet Suburban Pre-Purchase Inspection Checklist

5th Generation (T1XX) ยท 5.3L V8 (355hp) / 6.2L V8 (420hp) / 3.0L Duramax diesel I6 (277hp) ยท $65,000 - $90,000

Known Issues โ€” 2025 Chevrolet Suburban

CRITICAL

AFM lifter failure on 5.3L โ€” new platform, same issue

MODERATE

Air ride suspension failures

MODERATE

First-year infotainment bugs (2021)

MODERATE

Diesel DEF system maintenance costs

MINOR

Poor V8 fuel economy

What to Inspect

  • Listen for 5.3L AFM lifter tick
  • Test air suspension
  • Test diesel if equipped
  • Test all three rows
  • Verify no open recalls

Expected Maintenance Costs

Service Interval Cost
Oil change (5.3L V8) every 7,500 miles $80-$110
Oil change (3.0L diesel) every 7,500 miles $100-$150
Transmission fluid every 45,000 miles $130-$200
Spark plugs every 100,000 miles $150-$250
Air suspension service as needed $500-$2,000
DEF fluid (diesel) every 7,500 miles $10-$20

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