1999 Lexus LS400 Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 1999 Lexus LS400, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Driver assistance1246.2%
- Electrical415.4%
- Body & structure27.7%
- Tires & wheels27.7%
- Engine13.8%
- Interior & seats13.8%
- Powertrain (other)13.8%
- Seat belts13.8%
- Steering13.8%
- Brakes13.8%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Driver assistance
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.
From owner reports, verbatim
TL* THE CONTACT OWNS A 1999 LEXUS LS400. THE CONTACT STATED THAT WHILE DRIVING 15 MPH, HE APPLIED THE BRAKE DUE TO TRAFFIC. HOWEVER, THE VEHICLE ACCELERATED INDEPENDENTLY AND CRASHED INTO THE REAR OF ANOTHER VEHICLE. THE CRASH CAUSED DAMAGE TO BOTH VEHICLES AS WELL AS AN INJURED KNEE OF THE DRIVER OF THE VEHICLE THAT WAS STRUCK. THE FAILURE HAD RECURRED NUMEROUS TIMES. THE DEALER WAS NOTIFIED AND HE WAS INFORMED THE THROTTLE BODY WOULD PROBABLY NEED TO BE REPLACED. ALSO, HE WAS INFORMED THAT DUE TO THE TYPE OF FAILURE HE WOULD HAVE TO CONTACT THE MANUFACTURER. THE MANUFACTURER WAS NOTIFIED AND INFORMED THE CONTACT THAT THE LEGAL DEPARTMENT WOULD HAVE TO BE NOTIFIED BUT OFFERED NO OTHER ASSISTANCE. THE FAILURE MILEAGE WAS 130,000 AND CURRENT MILEAGE WAS 145,000. UPDATED 02/19/13
I AM REPORTING THIS BECAUSE IT MIGHT PROVIDE A CLUE TO THE TOYOTA RACING ENGINE PROBLEM. ON EACH OF TWO DAYS BEFORE I TOOK MY 1999 LEXUS 400 TO THE DEALER FOR REPAIRS, THE ENGINE WOULD RACE AT AN ESTIMATED 4,000+ RPMS AND EMITTED A GRINDING SOUND AS THE CAR WAS STARTED. AFTER TURNING OFF THE ENGINE WITH THE KEY, THE CAR WOULD RESTART WITHOUT A PROBLEM. STRANGELY, THE DEALER DID NOT RECORD THIS PARTICULAR COMPLAINT, BUT STATED THAT DIAGNOSIS REVEALED THAT STARTER WAS FAILING. I WAS CHARGED $990 FOR REPLACEMENT AND REPAIRS. I COULD NOT GET A SATISFACTORY ANSWER AS TO WHY A FAULTY STARTER WOULD CAUSE THE ENGINE TO RACE. I HAVE DRIVEN THE CAR OVER 10,000 MILES SINCE THEN WITHOUT A PROBLEM. *TR
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
OUR 1999LS400 LEXUS IS EXPERIENCING MALFUNCTIONS WITH THE ELECTRONICS IN THE DASH. THE ODOMETER AND THE SPEEDOMETER ARE WORKING INTERMITTENTLY. LEXUS WANTS 1200.00 TO PULL OUT DASH AND SEND AWAY TO REPAIR. I AM CONCERNED THIS IS A HUGE SAFETY ISSUE. I DON'T KNOW WHOSE REPLACING WHAT AND ARE THEY CERTIFIED LEXUS MECHANICS??? ARE THESE EARLY MODEL LS400'S HAVING ELECTRONICS PROBLEMS OR IS THIS JUST A SINGLE CASE? PLEASE LET ME KNOW. *TR
TL*THE CONTACT OWNS A 1999 LEXUS LS400. WHEN THE CONTACT STARTED THE VEHICLE SHE NOTICED THAT THE DASHBOARD PANEL WOULD NO LONGER FUNCTION. THE VEHICLE WAS TAKEN TO THE DEALERSHIP WHERE THE CONTACT WAS INFORMED THAT THE ENTIRE DASHBOARD PANEL NEEDED TO BE REPLACED. THERE WERE NO PRIOR WARNINGS. THE CURRENT AND FAILURE MILEAGES WERE 90000. UPDATED 07/07/10.*JB
Too few reports in this category for a page of its own — they appear in the full complaint list.
Body & structure
Reports naming the vehicle structure, frame, body panels, doors, hood and trim.
From owner reports, verbatim
TL*THE CONTACT OWNS A 1999 LEXUS LS400. THE CONTACT STATED THAT WHILE WORKING UNDER THE HOOD IT STARTED CLOSING CREATING A SAFETY HAZARD. THE VEHICLE WAS REPAIRED BY A LOCAL MECHANIC. TOYOTA WAS NOT CONTACTED. THE VIN WAS NOT AVAILABLE. THE FAILURE MILEAGE WAS APPROXIMATELY 100,000. THE CURRENT MILEAGE WAS 120,000.
WHILE WORKING ON THE VEHICLE, THE HOOD FELL DOWN ON THE CONSUMER. *JB THE PISTONS IN THE HOOD WERE NOT SUFFICIENT ENOUGH TO HOLD THE WEIGHT OF THE HOOD. *SC
Too few reports in this category for a page of its own — they appear in the full complaint list.
Tires & wheels
Reports naming tires, wheels, hubs, or the tire-pressure monitoring system.
From owner reports, verbatim
RIGHT REAR TIRE HAD A BLOWOUT WHILE DRIVING AT 30 MPH ON A 1999, LEXUS LS400. ORIGINAL EQUIPMENT, TIRE SIZE P225/60R16, DOT# ELA6 CBC528. MANUFACTURER AND TIRE DEALER WERE NOTIFIED.*AK *YH
FIRESTONE TURANZA ORIGINAL EQUIPMENT ON A LEXUS LS400 1999. WHILE DRIVING 75MPH RIGHT REAR TIRE'S AIR WENT OUT. TREAD WAS STILL ON THE TIRE, BUT SIDEWALL WAS GONE. *AK THE TIRE IS DOT ELA6 (CBC 218) # 035629 MADE IN JAPAN. IT FAILED DUE TO POOR MATERIAL, POOR ADHESIVE AND WORKMANSHIP. *YH
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
I AM REPORTING THIS BECAUSE IT MIGHT PROVIDE A CLUE TO THE TOYOTA RACING ENGINE PROBLEM. ON EACH OF TWO DAYS BEFORE I TOOK MY 1999 LEXUS 400 TO THE DEALER FOR REPAIRS, THE ENGINE WOULD RACE AT AN ESTIMATED 4,000+ RPMS AND EMITTED A GRINDING SOUND AS THE CAR WAS STARTED. AFTER TURNING OFF THE ENGINE WITH THE KEY, THE CAR WOULD RESTART WITHOUT A PROBLEM. STRANGELY, THE DEALER DID NOT RECORD THIS PARTICULAR COMPLAINT, BUT STATED THAT DIAGNOSIS REVEALED THAT STARTER WAS FAILING. I WAS CHARGED $990 FOR REPLACEMENT AND REPAIRS. I COULD NOT GET A SATISFACTORY ANSWER AS TO WHY A FAULTY STARTER WOULD CAUSE THE ENGINE TO RACE. I HAVE DRIVEN THE CAR OVER 10,000 MILES SINCE THEN WITHOUT A PROBLEM. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Interior & seats
Reports naming seats, latches, locks, linkages and interior fittings.
From owner reports, verbatim
1999 400LS LEXUS DASH PANEL DEFECTIVE. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
WHILE SLOWLY PULLING INTO A SHOPPPING CENTER PARKING PLACE THAT WAS PERPENDICULAR TO THE STREET, I HAD MY FOOT ON THE BRAKE WHEN MY VEHICLE SUDDENLY ACCELERATED AND LUNGED OVER THE CURB AND ACROSS THE SIDEWALK INTO A BUILDING. LEXUS HAS BEEN NOTIFIED AND INTIMATED THEY WOULD INVESTIGATE. *NM
Too few reports in this category for a page of its own — they appear in the full complaint list.
Seat belts
Reports naming seat belts, buckles, retractors and pretensioners.
From owner reports, verbatim
THE SEAT BELTS ON MY CAR DO NOT RETRACT OR STAY TIGHT ON ME ANYMORE. THEY CONTINUE TO LOOSEN AS I DRIVE. THEY ARE STIFF ALMOST BRITTLE. THE STEERING WHEEL DOES NOT MOVE OUT LIKE IT USED TO. NOW IT MOVES AWAY FROM THE DASH IN AN UPWARD DIRECTION TOWARD MY FACE. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Steering
Reports naming the steering system — racks, columns, power-steering assist and steering linkage.
From owner reports, verbatim
THE SEAT BELTS ON MY CAR DO NOT RETRACT OR STAY TIGHT ON ME ANYMORE. THEY CONTINUE TO LOOSEN AS I DRIVE. THEY ARE STIFF ALMOST BRITTLE. THE STEERING WHEEL DOES NOT MOVE OUT LIKE IT USED TO. NOW IT MOVES AWAY FROM THE DASH IN AN UPWARD DIRECTION TOWARD MY FACE. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
WHILE MAKING A U-TURN THE VEHICLE SUDDENLY ACCELERATED. DRIVER PUT THE BRAKES ON, AND THE BRAKES SQUEALED AND DID NOT STOP VEHICLE. IT LOST CONTROL AND HIT THE SIDE OF THE WALL. DEALER HAVE BEEN CONTACTED, BUT CANNOT DETERMINE THE PROBLEM. *AK PLEASE PROVIDE FURTHER INFORMATION AND VIN#.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .