2020 GMC Yukon Pre-Purchase Inspection Checklist
Known Issues — 2020 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 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
- Test all infotainment functions
Expected Maintenance Costs
| 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 |
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 GMC Inspection Checklists
Maintenance Guides for GMC Owners
Want a complete buying guide? Read our Used Car Buying Inspection Checklist.