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What 6 owners told NHTSA about the 2020 Lexus Nx300h

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 (6)Crash / fire / injury (1)Visibility & wipers (2)Driver assistance (1)Engine (1)Speed control (1)

Newest first · 6 complaints

Apr 14, 2021Speed controlDriver assistance

FEATURE ACC: CONTROLS ACCELERATION AND/OR BRAKING TO MAINTAIN A PRESCRIBED DISTANCE BETWEEN THE VEHICLE AND ANOTHER ONE IN FRONT. MAY BE ABLE TO COME TO A STOP AND CONTINUE. SAFETY ISSUE: THE BRAKE LIGHTS DO NOT COME ON ESPECIALLY WHEN COMING TO A COMPLETE STOP IN TRAFFIC. VEHICLES FOLLOWING MY CAR ARE UNAWARE MY VEHICLE IS COMING TO A COMPLETE STOP, AND MAY REAR END MY VEHICLE. I REPORTED THE ISSUE TO LEXUS TOO.

NHTSA ODI 11408083

Nov 24, 2020Visibility & wipers

ON 11-05-2020 I WAS DRIVING MY NEW LEXUS (3200 MILES ON IT) ABOUT 55 MPH ON A 4 LANE HIGHWAY IN LIGHT TRAFFIC. IT WAS A SUNNY AFTERNOON AND 84 DEGREES. ALL OF A SUDDEN THERE WAS A VERY LOUD EXPLOSION SOUND FROM ABOVE OUR HEADS AND THEN THE SOUND OF GLASS FLYING OFF FROM THE VEHICLE ONTO THE ROADWAY BEHIND US. THERE WAS NO ROAD DEBRIS, FLYING ROCKS OR CEMENT TRUCKS NEARBY THAT MIGHT HAVE CAUSED A ROCK TO FLY UP AND BREAK THE GLASS ON THE SUNROOF. I THOUGHT WE HAD BEEN SHOT AT. I WAS ABLE TO PULL OVER OFF THE HIGHWAY AND GOT OUT TO INSPECT THE DAMAGE. THAT'S WHEN I REALIZED THE SUN ROOF HAD EXPLODED. IT EXPLODED UPWARD AS THE SHARDS OF GLASS INDICATED. THE INTERIOR SUN VISOR PORTION HAD BEEN CLOSED WHEN THIS EXPLOSION TOOK PLACE OTHERWISE MY SELF AND MY PASSENGER WOULD HAVE BEEN SERIOUSLY CUT BY FLYING SHARDS OF GLASS. IT WAS AT THIS POINT I TOOK THE PICTURES THAT I AM ATTACHING TO THIS REPORT. WE IMMEDIATELY CALLED THE LEXUS DEALER AND BROUGHT THE CAR TO THEM ON THE NEXT DAY. AFTER 1 WEEK THEY SAID THE DAMAGE WAS CAUSED BY FLYING DEBRIS BUT DID NOT EXPLAIN HOW THEY CAME TO THIS CONCLUSION. THEY ALSO SAID THIS WASN'T UNDER WARRANTY AND WE HAVE TO PAY $1700 TO HAVE IT REPAIRED. TO DATE, 11/24/2020 WE STILL DO NOT HAVE OUR VEHICLE BACK FROM THE LEXUS DEALER. WE HAVE FILED A CLAIM WITH OUR INSURANCE COMPANY, STATE FARM. I DISAGREE WITH THIS EXPLANATION AND HAVE FOUND HUNDREDS OF DOCUMENTED CASES SUCH AS MINE THAT HAVE BEEN REPORTED TO NHTSA WHERE THE SUN ROOF EXPLODES OUTWARD FOR NO REASON. I HOPE THE NHTSA WILL INVESTIGATE THESE ACCIDENTS AND REQUIRE MANUFACTURERS TO USE BETTER, SAFER GLASS IN THE SUNROOFS. THESE SUNROOFS ARE BECOMING VERY COMMON. WITHOUT OVERSIGHT AND SAFER MATERIALS THERE WILL BE MANY MORE ACCIDENTS AND PEOPLE WILL BE SERIOUSLY INJURED OR WORSE. PLEASE LOOK INTO THESE SUNROOF ACCIDENTS AND HELP MAKE VEHICLES SAFER.

NHTSA ODI 11376160

Nov 11, 2020Visibility & wipers

SUNROOF SPONTANEOUSLY EXPLODED WHILE DRIVING ON HIGHWAY ROUTE 101 IN NEW HAMPSHIRE NEAR EPPING. THE SUNROOF AND CAR WINDOWS WERE CLOSED AT THE TIME. THERE WAS VERY LITTLE TRAFFIC ON THE ROAD AND THE CAR WAS NOT NEAR AN UNDERPASS. THE GLASS FROM THE SUNROOF SHATTERED ALL OVER THE INTERIOR OF THE CAR WITH THE MAJORITY ENDING UP IN THE BACK SEAT. FORTUNATELY, NO PASSENGERS WERE IN THE BACK SEAT AND THERE WERE NO INJURIES TO REPORT. THE DRIVER PULLED THE CAR OFF THE HIGHWAY AT THE NEXT EXIT AND DROVE THE CAR TO A LOCAL LEXUS DEALER FOR REPAIR.

NHTSA ODI 11374123

Oct 22, 2020

IMY 2020 LEXUS NX 300 HAD A 10,000 MILE SERVICE ON 10-6-2020 ON 10-13-20 IVE NOTICE WATER COMING IN MY CAR FROM CENTER CONSOLE. CALLED DEALER AND WAS TOLD BRING IT IN ON 10-15-20. WAS TOLD BY THEM A SPIDER WEB CAUSED BLOCKAGE OF DRAIN TUBE AND FLOODED MY INTERIOR OF CAR. ALSO WAS NOT COVERED BY WARRANTY.AS I DROVE THE MORE WATER WAS COMING IN THE CAR. WHEN THE CAR WAS STATIONARY WITH HEAT/AC RUNNING MORE WATER WAS COMING IN DRIVER SIDE.ALSO WAS RETURNED CAR AFTER INSURANCE DENIED TO PAY WAS TOLD TO PICK UP MY CAR WITH CAR PARTS SCATTERED INSIDE MY VEHICLE AND MISSING SCREW COVERS. I ALSO WAS TOLD MOLD WAS FORMING AND MOLD MEDIATION WAS RECOMMENDED. IT WAS A 6800.00 ESTIMATE. DID SOME RESEARCH AND VERY SIMIALIAR PROBLEMS THROUGH THE YEARS HAVE CAME UP WITH LEXUS / TOYOTA.

NHTSA ODI 11365752

Oct 11, 2020

DCM COMPUTER

NHTSA ODI 11363800

Jun 1, 2020EngineFire

TL* THE CONTACT OWNS A 2020 LEXUS NX300. THE CONTACT STATED THAT AT 2:45 AM THERE WAS A LOAD SOUND COMING FROM THE DRIVEWAY WHERE THE VEHICLE WAS PARKED. THE CONTACT THEN DISCOVERED HER VEHICLE WAS ON FIRE NEAR THE FRONT OF THE HOOD. THE TIRE EXPLODED ALONG WITH THE WINDSHIELD FRACTURING. THE CONTACT MENTIONED THAT THE VEHICLE WAS NOT DRIVEN SINCE WEDNESDAY FROM THE INCIDENT DATE ON SATURDAY. THE CONTACT STATED THE FIRE WAS EXTINGUISH BY THE FIRE DEPARTMENT, AND A FIRE DEPARTMENT REPORT WAS FILED. THE INSURANCE COMPANY INSPECTED THE VEHICLE AND STATED THE CAUSE OF THE FIRE WAS UNDETERMINED. THE CONTACT MENTIONED THAT ONLY THE FRAME OF THE VEHICLE REMAINED AFTER THE FIRE WAS EXTINGUISHED. THE CONTACT STATED THE VEHICLE WOULD BE TOWED TO A SALVAGE YARD WHERE AN INVESTIGATOR WAS TO DETERMINE WHAT CAUSED THE FIRE BUT AS OF YET THE VEHICLE WAS NOT DEEMED A TOTAL LOSS. THE CONTACT STATED AN UNKNOWN LOCAL DEALER WAS CONTACTED AND INFORMED CONTACT THERE WAS NO RECALLS ON VEHICLE. THE MANUFACTURER HAD NOT BEEN INFORMED OF FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 3,500.

NHTSA ODI 11326766

Working with the data? Download all 6 complaints as CSV · fetched from NHTSA July 20, 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 2020 Lexus Nx300h verdict →