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What 12 owners told NHTSA about the 2012 Jaguar Xj (lwb)

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (12)Crash / fire / injury (1)Engine (4)Electrical system (3)Fuel system (3)Brakes (2)Suspension (2)Visibility & wipers (2)Body & structure (1)Latches & locks (1)Seats (1)Speed control (1)

1 of 12 complaints match · Speed control · clear filters

Mar 13, 2014Electrical systemSpeed controlSeats

THE PROBLEMS I HAVE ENCOUNTERED, SOME INFREQUENTLY, SOME OFTEN, INCLUDE: THE ADAPTIVE SPEED CONTROL SILENTLY AND INVISIBLY CEASING TO WORK (BUT ONLY AT TURNPIKE SPEEDS); SOME WINDOWS NOT LOWERING WHILE OTHERS DO; THE PASSENGER OUTSIDE MIRROR NOT DIPPING IN REVERSE; THE DRIVER'S DOOR REFUSING TO OPEN FROM THE INSIDE (REQUIRING ME TO CRAWL OVER TO THE PASSENGER DOOR TO EXIT THE CAR); THE TRUNK NOT OPENING WITH THE BUTTON; THE TRUNK NOT CLOSING WITH THE BUTTON; THE RADIO NOT PLAYING (UNTIL THE CAR IS SHUT OFF AND THEN RE-STARTED); THE IGNITION BUTTON NOT TURNING OFF THE CAR ON THE FIRST OR SECOND PUSH; THE SEATS FORGETTING THEIR MEMORY SETTINGS AND REVERTING TO THE DEFAULT SETTINGS WHILST THE CAR IS PARKED AND UNATTENDED; THE ENGINE STARTING AND RUNNING AT 5,000 RPM AND NOT SLOWING DOWN UNLESS TURNED OFF; THE TRUNK OPENING WHILE THE CAR IS MOVING; THE DRIVER'S REAR-VIEW MIRROR NOT EXTENDING WHEN THE DOOR IS UNLOCKED AND OPENED. MANY DAYS THERE ARE NO PROBLEMS; OTHER DAYS MULTIPLE PROBLEMS. THE SERVICE DEPARTMENT AT MY DEALER TELLS ME THAT UNLESS THE PROBLEMS ARE CONTINUOUS, THEY HAVE NO IDEA HOW TO FIX THEM. I THINK THERE MAY BE A COMPUTER OR WIRING PROBLEM. *TR

NHTSA ODI 10568987

Working with the data? Download all 12 complaints as CSV · fetched from NHTSA July 24, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2012 Jaguar Xj (lwb) verdict →