2012 GMC ACADIA DENALI VIN 1GKKVTED6CJ136871

This entry is for a 2012 GMC Acadia Denali. The petrol engine has six cylinders and produces 288 hp. Power reaches the wheels through an automatic gearbox.

The record gives the mileage as 142,720 miles. The figure is in miles and needs converting before it is compared with kilometres: one mile is about 1.6 km. A single figure proves little: what makes a mileage believable is a series of readings that rise steadily over the years.

The record lists front-end damage as the main problem on this car. Two cars with the same damage label can be very different: one needs a few new parts, the other major work. Whatever the cause, a diagnostic scan of the car’s electronics shows fault codes that a visual check misses.

As a non-runner, the car needs its engine, gearbox and electrics assessed before anything else. The engine could not be started. A key was noted with the car.

The car carries a clean title. Nothing on the title points to a total loss or a flood.

Behind every used car lies a string of events: who owned it and for how long, what the inspections found and which repairs and claims were made. A car’s past rarely shows on the paintwork: a well-repaired accident or water damage that was dried out is easy to miss.

When a car does not run, a compression test and the condition of the oil tell a mechanic whether the engine can be brought back to life. Many modern petrol engines are turbocharged and direct-injected; where they are, the turbocharger and injectors belong on a specialist’s checklist. While the car does not run, stored fault codes and a look at the fluid are the only early evidence of how the automatic gearbox has fared. With all-wheel drive, mismatched tyres can strain the centre differential or coupling, so all four should be the same make and similarly worn.

The ninth character of the VIN is a check digit calculated from the other sixteen, so a mistyped or invented number does not add up. The VIN of this GMC Acadia Denali is 1GKKVTED6CJ136871. A VIN that differs between the documents and the car, or shows signs of tampering, is reason enough to walk away.

Depending on what is on file, a VIN report may include past registrations, mileage readings, damage entries, branded titles and theft checks. No report is complete: a repair done privately and never claimed on insurance leaves nothing to find. A VIN check and a physical inspection answer different questions: the first says what happened to the car, the second what condition it is in now. The next step is to look up the history behind VIN 1GKKVTED6CJ136871.