Average Reliability
2018 GMC Yukon Pre-Purchase Inspection Checklist
Known Issues — 2018 GMC Yukon
CRITICAL
AFM lifter failure on 5.3L V8
CRITICAL
Transmission torque converter shudder on 6-speed
MODERATE
Oil consumption on 5.3L V8 with AFM
MODERATE
Third-row seat power fold mechanism failure
MODERATE
Rear air suspension compressor failure on Denali
MINOR
MyLink infotainment freeze
What to Inspect
- Check 5.3L V8 for AFM lifter tick
- Test 6-speed for torque converter shudder
- Check oil level for consumption
- Test third-row power fold
- On Denali — test air suspension all modes
- Test MyLink infotainment for freezing
Maintenance costs to expect
| Service | Interval | Cost |
|---|---|---|
| Oil change (synthetic) | every 7,500 miles | $90-$130 |
| Transmission fluid service | every 45,000 miles | $200-$320 |
| Spark plugs | every 60,000 miles | $250-$400 |
| Rear differential fluid | every 45,000 miles | $120-$180 |
| Transfer case fluid | every 45,000 miles | $100-$150 |
| Air suspension service (Denali) | every 60,000 miles | $200-$400 |
| Brake service (pads and rotors) | every 50,000 miles | $500-$750 |
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