2018 GMC Canyon Pre-Purchase Inspection Checklist
Known Issues — 2018 GMC Canyon
MODERATE
Infotainment MyLink system freezing
MODERATE
6-speed automatic transmission rough cold shifts
MODERATE
2.8L Diesel DEF system sensor failures
MINOR
Tailgate cable fraying
MINOR
Infotainment USB port reliability
MINOR
Bed liner adhesion issues on some builds
What to Inspect
- Test 6-speed transmission cold and warm shifts
- Test MyLink infotainment for freeze
- On Diesel — check DEF and scan fault codes
- Inspect tailgate cables for fraying
- Test all USB ports and CarPlay connectivity
- Inspect bed liner adhesion
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Oil change (synthetic) | every 7,500 miles | $60-$90 |
| Transmission fluid service | every 45,000 miles | $150-$250 |
| Spark plugs (V6) | every 60,000 miles | $150-$250 |
| Rear differential fluid | every 45,000 miles | $80-$130 |
| DEF fluid refill (Diesel) | every 5,000 miles | $20-$40 |
| Brake service (pads and rotors) | every 45,000 miles | $300-$500 |
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