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What 7 owners told NHTSA about the 2015 Jaguar Xj (swb)

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 (7)Crash / fire / injury (4)Speed control (3)Brakes (2)Airbags (1)Electrical system (1)Engine (1)Steering (1)Tires (1)Transmission & drivetrain (1)

3 of 7 complaints match · Speed control · clear filters

Sep 2, 2020Speed controlBrakes

TL* THE CONTACT OWNS A 2015 JAGUAR XJ. THE CONTACT STATED THAT WHILE HIS WIFE WAS DRIVING APPROXIMATELY 20 MPH, THE VEHICLE INDEPENDENTLY ACCELERATED TO APPROXIMATELY 50-60 MPH. THE CONTACT STATED THE DRIVER APPLIED THE BRAKES HOWEVER, THE BRAKES FAILED TO STOP THE VEHICLE. THE DRIVER KEPT THE BRAKE PEDAL DEPRESSED UNTIL THE VEHICLE FINALLY CAME TO A STOP. THE CONTACT WAS UNSURE IF THERE WERE ANY WARNING LIGHTS ILLUMINATED. THE CONTACT HAD NOT CONTACTED THE DEALER. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 34,900.

NHTSA ODI 11352735

Dec 3, 2019Speed controlEngineCrashFire3 injuries

I WAS CALMLY DRIVING SLOWER THAN 35 MPH ON A CITY STREET WHEN THE CAR SUDDENLY SLOWED DOWN AND STOPPED RESPONDING TO THE ACCELERATOR PEDAL. WHEN I TRIED TO STEP ON THE GAS I HEARD A BIG EXPLOSION-LIKE SOUND. THEN ALL OF A SUDDEN THE CAR ACCELERATED TO WHAT SEEMS LIKE OVER 100 MPH AND THE BREAKS DID NOT WORK DESPITE ME PRESSING THE BREAKS SEVERAL TIMES. I SHOT INTO 3 CARS AHEAD OF ME THAT WERE AT THE RED LIGHT. THE OTHER CARS RECEIVED SUBSTANTIAL DAMAGE; I SAW THAT OTHERS WERE INJURED. MY CAR WAS COMPLETELY DAMAGED/CRUSHED IN THE FRONT AND A FIRE HAD BROKEN OUT. THE AIRBAGS HAD DEPLOYED AND I WAS PRETTY MUCH PINNED TO THE SEAT. I HAD BOUGHT THE CAR FROM THE DEALER BRAND NEW AND HAD IT REGULARLY SERVICED AND MAINTAINED. I WAS THE ONLY DRIVER AND IT HAD ONLY 30000 MILES OVER 3 YRS.

NHTSA ODI 11286712

Feb 18, 2019Speed controlCrash

ON SATURDAY, FEBRUARY 9, 2019, AT ABOUT 5.45 P.M. I WAS DRIVING MY VEHICLE WITH MY WIFE AS THE FRONT SEAT PASSENGER. THE DRIVING CONDITIONS WERE GOOD AND WE BOTH HAD OUR SEAT BELTS ON. THERE WERE NO DISTRACTIONS IN THE CAR. I JUST GOT OFF THE WESTBOUND 118 FREEWAY AT THE SOUTHBOUND TOPANGA CANYON BLVD. OFF RAMP. I TURNED LEFT AND BROUGHT MY CAR TO A COMPLETE STOP AS THERE WERE OTHER CARS IN THE OUTER LANE (CLOSEST TO THE CURB.) THE CAR ROLLED FORWARD BY A COUPLE OF FEET DESPITE MY RIGHT FOOT BEING ON THE BRAKE PEDAL. MY WIFE ASKED WHAT WAS HAPPENING AND I REMARKED THAT THE BRAKES WERE NOT WORKING. THERE WAS AT THIS STAGE A GAP OF ABOUT FIVE FEET BETWEEN MY CAR AND THE ONE IN FRONT. I PRESSED THE BRAKE PEDAL HARDER AND THE VEHICLE, INSTEAD OF STOPPING, WENT INTO SUDDEN ACCELERATION. SOMEHOW THE CAR VEERED INTO THE INNER LANE (CLOSEST TO THE CENTER DIVIDER LINE) AND HIT A HONDA TRUCK ON ITS RIGHT SIDE NEAR THE FRONT DOOR AFTER IT HAD SPUN HAVING BEEN STRUCK BY ANOTHER VEHICLE. 4 CARS, INCLUDING MINE, WERE INVOLVED IN THE CRASH. MY CAR'S AIRBAGS DID NOT DEPLOY AND THERE WAS EXTENSIVE DAMAGE TO THE FRONT OF THE CAR, PARTICULARLY ON THE LEFT SIDE. THE CAR WAS TOWED TO AN AUTO SHOP AND THE CASE REPORTED TO THE POLICE AND MY TRIPLE A INSURANCE COMPANY. I ALSO REPORTED IT TO JAGUAR CORPORATE BUT DID NOT GET MUCH HELP FROM THEM. I AM WAITING TO HEAR FROM MY INSURANCE COMPANY REGARDING THE DISPOSITION OF THE VEHICLE, BUT FEEL JAGUAR HAS TO TAKE ITS SHARE OF THE LIABILITY. PLEASE ADVICE ME ON MY COURSE OF FUTURE ACTION. PLEASE ALSO INVESTIGATE THIS MECHANICAL AND ELECTRONIC FAILURE IN THE VEHICLE.

NHTSA ODI 11180881

Working with the data? Download all 7 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 2015 Jaguar Xj (swb) verdict →