2025 GMC Sierra 1500 Pre-Purchase Inspection Checklist
Known Issues — 2025 GMC Sierra 1500
CRITICAL
2.7L Turbo I4 timing chain rattle cold start
CRITICAL
DFM lifter failure on V8 engines
MINOR
Infotainment early production software issues
MINOR
MultiPro tailgate latch sensor calibration
MINOR
Wireless CarPlay connectivity
MINOR
TPMS reset needed after rotation
What to Inspect
- On 2.7T — listen for cold-start timing chain rattle
- On V8 — check for DFM lifter tick at idle
- Test all infotainment functions including wireless CarPlay
- Test MultiPro tailgate all positions
- Test 4WD engagement through all modes
- Confirm factory warranty coverage
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Oil change (synthetic) | every 7,500 miles | $80-$120 |
| Transmission fluid service | every 45,000 miles | $200-$350 |
| Spark plugs (V8) | every 60,000 miles | $200-$350 |
| Rear differential fluid | every 45,000 miles | $100-$150 |
| Transfer case fluid | every 45,000 miles | $80-$130 |
| DEF fluid refill (Diesel) | every 10,000 miles | $30-$60 |
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