CarLogs · Pre-purchase checklist
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Printed 17 Oct 2026
Pre-purchase inspection checklist
2020 Cadillac xt6 Premium Luxury
VIN 1GYKPCRS9LZ105639
Inspect these first — most-reported on this model
- Electrical System (11 owner reports)Test every electrical feature: windows, locks, infotainment, charging and all lights. Watch for flickering, dead accessories or warning lights.
- Power Train (8 owner reports)Drive through every gear: watch for slipping, hard or delayed shifts, and shudder. Check for transmission/driveline leaks and noises.
- Back Over Prevention (7 owner reports)Have a trusted mechanic inspect this system as part of a pre-purchase inspection.
- Engine (4 owner reports)Listen for knocks or ticking, check for leaks and blue/white exhaust smoke, and make sure it doesn't overheat. No check-engine light should be on.
- Forward Collision Avoidance (3 owner reports)Have a trusted mechanic inspect this system as part of a pre-purchase inspection.
- Fuel/propulsion System (2 owner reports)Check for fuel or battery warnings, hard starts and stalling. On a hybrid/EV, confirm charging and range behave normally.
Paperwork & identity
- VIN on the dash, driver door jamb and title all match exactly.
- Seller's name matches the title and photo ID.
- Service and repair records available and consistent with the mileage.
- No lien still listed on the title (ask for a lien release if there was one).
Engine & drivetrain
- Cold-start the engine — listen for knocks, ticking or rattles.
- No blue (oil) or white (coolant) smoke from the exhaust.
- Fluids clean and at level — oil, coolant, brake and transmission.
- No oil, coolant or transmission leaks under the car after it idles.
- All dashboard warning lights clear a few seconds after startup.
Body, tyres & underside
- Panel gaps even; paint colour and texture match across panels (repaint = past damage).
- No fresh undercoating hiding rust or recent weld repairs.
- Tyres worn evenly and matched; check the date codes and the spare.
- No rust on the frame, floor pans, suspension mounts or brake lines.
Test drive
- Shifts smoothly through every gear — no slipping, shudder or clunk.
- Brakes straight and quiet — no pulling, grinding or pulsing.
- Steering tracks straight; no vibration at highway speed.
- Air-con, heater, lights, wipers, windows and infotainment all work.
Before you pay
- Independent pre-purchase inspection by a trusted mechanic.
- Open safety recalls confirmed fixed (a franchised dealer repairs them at no charge). 4 recall campaigns on file for this model year — verify at nhtsa.gov/recalls.
- Agreed price reflects anything the inspection turned up.
Notes