131 of the 424 complaints filed about the Lexus LS400 are about the electrical system — 31% of everything owners reported. The worst model year for it is 1993.
131
Complaints
31%
Share of all complaints
0
Crashes
1
Fires
ELECTRICAL SYSTEM
THE INSTRUMENT CLUSTER LIGHTS ARE ALL OUT. ONLY THE WARNING AND SHIFT INDICATORS LIGHTS ARE ON. I CAN'T SEE HOW FAST I AM GOING OR HOW MUCH FUEL I HAVE IN THE CAR.
NHTSA complaint #11210495 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM:STARTER ASSEMBLY
TL* THE CONTACT OWNS A 1998 LEXUS LS400. WHILE STATIONARY, THE VEHICLE FAILED TO START. THE CONTACT STATED THAT THE VEHICLE STARTED AFTER SEVERAL ATTEMPTS WERE MADE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE STARTER NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE DEALER (ARROWHEAD LEXUS IN PEORIA, ARIZONA) WAS MADE AWARE OF THE FAILURE AND STATED THAT AN UNKNOWN RECALL ON THE VEHICLE HAD CLOSED/EXPIRED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE RECALL INFORMATION WAS NOT PROVIDED. THE FAILURE MILEAGE WAS APPROXIMATELY 151,000.
NHTSA complaint #11092540 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
INSTRUMENT CLUSTER ILLUMINATION FAILS, LEAVING INSTRUMENTS INVISIBLE DUE TO INSTRUMENT DESIGN. AT THE SAME TIME, THE FUEL GAUGE STOPS INDICATING FUEL LEVEL. ON MY PARTICULAR VEHICLE, THIS HAPPENS WHEN OUTSIDE TEMPERATURE EXCEEDS 75 DEGREES FAHRENHEIT. IN COOLER TEMPERATURES, THE ILLUMINATION AND FUEL GAUGE RESUME FUNCTION. ALSO, OCCASIONALLY THE TACHOMETER AND SPEEDOMETER NEEDLES WILL STICK AT ZERO, WILL RESUME FUNCTION WHEN HITTING THE DASH OVER TOP OF THE GAUGES HARD WITH FIST. THE SPEEDOMETER INDICATOR NEEDLE HAS STOPPED ILLUMINATING UNDER ALL CONDITIONS. CAR HAS 159K MILES AND JUST PURCHASED 4 DAYS AGO. I HAVE READ THAT THESE ARE VERY COMMON AND EXPENSIVE PROBLEMS WITH THIS CAR. I REALIZE THE CAR IS NOW 23 YEARS OLD, BUT THERE SHOULD BE AN INEXPENSIVE SOLUTION TO THESE PROBLEMS, OR AT LEAST SOME COMPENSATION OR CO-PAYMENT FROM THE MANUFACTURER DUE TO THE EXPENSE OF THESE REPAIRS. REPAIR COST WOULD BE 30% OF WHAT I PAID FOR THE CAR.
NHTSA complaint #11002430 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
THE FIRST TIME MY ECU FAILED WAS WHEN I WAS PARKED I WANT TO DRIVE AND THE ENGINE WOULD NOT GO ABOVE 1000RMPS. I GOT THE ECU REPLACED THIS WAS AROUND 2013. THE SECOND TIME WAS A MONTH AGO. I WAS DRIVING HOME FROM WORK HAD A HUGE THUD IN THE ENGINE AND THE SAME THING MY CAR COULD NO LONGER GO ABOVE 1000RPMS AND COULDN'T GET THREW THE INTERSECTION. THE CAR BEHIND ME HAD TO SLAM ON THERE BREAKS BECAUSE MY CAR HAD LOST ALL POWER. I MADE IT HOME AND WAS ABLE TO GET A TOW TRUCK. BY THE TIME THE TOW TRUCK ARRIVED THE CAR WOULD START BUT THEN COMPLETELY DIE. TOOK IT TO A MECHANIC THEY HAD IT FOR A WEEK SAID IT FIXED ITSELF. ONE HOUR AFTER I GOT IT THE CAR STARTED TO ACT UP AGAIN. THE CAR IS BACK IN THE SHOP. THEY HAD TO SEND THE ECU OUT TO GET REPAIRED. I DID SOME RESEARCH AND APPARENTLY THE PARTS LEXUS USED ON THE ECU ARE FAULTY AND LEEK. CAUSING THE MOTHERBOARD TO SHORT. I STILL HAVE NOT GOTTEN MY CAR BACK AND DON'T KNOW IF THE CAR WILL BE FIXED ONCE THEY GET THE COMPUTER BACK. PLEASE RESEARCH MORE AS THIS IS NOT A CHEAP FIX AND FOR IT TO HAPPEN TWICE....WHICH I'M SURE YOU ALREADY KNOW IS NOT SOMETHING COMMON TO HAVE TO REPAIR ON A CAR LET ALONE TWICE. WILL SEND MORE DOCUMENTATION ONCE I GET MY CAR BACK. OR FEEL FREE TO CONTACT ME.
NHTSA complaint #10957724 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
DASH FUNCTIONS DON'T WORK AT TIMES. SPEED, FUEL LEVEL,ETC ARE NOT INDICATED WHEN CAR IS AT REST OR MOVING. THIS HAS BEEN A RECURRING PROBLEM WITH THE RESULT THAT I FEAR DRIVING THE CAR AND WON'T SELL IT AS IT IS NOW. AT AROUND $1800 TO REPAIR WITH NO GUARANTEE THE REPLACEMENT IS NOT BUGGY, I FEEL BETRAYED AND DISMISSED BY TOYOTA.
NHTSA complaint #10934343 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
S10 APPROPRIATE HANDLING - ENCLOSING AN AGENDA REPORT SERVICE HISTORY MAY 2014 - MAY/JUNE 2016 ON BLACK 1990 LEXUS LS 400. *SMD THE CONSUMER STATED EACH TIME THE REPAIR SHOP PERFORMED SERVICES ON HER VEHICLE, IT LED TO ANOTHER PROBLEM(S). A CLAMP WAS MISSING. A WIRE LEFT DANGLING, A HOSE WAS NOT PLACED ON CORRECTLY OR IT WAS THE WRONG HOSE AND/OR A GOOD HOSE WAS TORN, BROKEN OR TATTERED. A SCREW WAS LEFT MISSING. A PART OR COMPONENT WAS NOT PUT IN PROPERLY. THE CONSUMER STATED SHE WAS AFRAID TO DRIVE THE VEHICLE MORE THAN 10 MILES, BECAUSE IT WOULD SMOKE AND LEAK FLUID. THE STARTER WAS REPLACED, THE DOOR WOULD NOT CLOSE COMPLETELY, THE HOOD WOULD NOT SHUT COMPLETELY, THE FUEL GAUGE DID NOT WORK, DESPITE HAVING A FULL TANK OF GAS, THE DEFROSTER DID NOT WORK. ALSO, THE OIL SHOWED A QUART LOW, THE INTERIOR GAUGES ON THE STEERING PANEL WENT HAYWIRE, THE INTERIOR TURN SWITCHES WERE NOT WORKING AS THEY SHOULD, THE TRANSMISSION MOUNT NEEDED TO BE REPLACED, THE TRANSMISSION STICK WAS LOOSE, THE BRAKE HOSE AND IGNITION CYLINDER, CONTROL ARMS AND WINDOW REGULATORS WERE REPLACED. *JB UPDATED 04/10/2017*JS
NHTSA complaint #10916975 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
TL* THE CONTACT OWNS A 1996 LEXUS LS400. THE CONTACT STATED THAT THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE ISSUE. THE FAILURE MILEAGE WAS 116,000. UPDATED 02/23/16*LJ UPDATED 05/04/18*JB
NHTSA complaint #10808803 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
VEHICLE DOES NOT START WHEN HOT. STARTER DOES NOT TURN. VEHICLE WAS NEVER RECALLED FOR NHTSA CAMPAIGN ID: 98V016000. MY CAR HAS A PRODUCTION DATE OF 7/97. CUT OFF DATE FOR THIS CAMPAIGN WAS 6/97. I BELIEVE MY VEHICLE SHOULD HAVE BEEN RECALLED FOR THE REPAIR OF THE MAGNETIC SWITCH IN THE STARTER. A NO START CONDITION EXISTS AND A FIRE CAN RESULT IF THE SOLENOID SHORTS OUT. THIS IS A SAFETY ISSUE AND NEEDS TO BE ADDRESSED.
NHTSA complaint #10761776 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
TL* THE CONTACT OWNS A 1995 LEXUS LS400. THE CONTACT STATED THAT THE VEHICLE STALLED WITHOUT WARNING. THE CONTACT REPLACED THE ALTERNATOR AND BATTERY, BUT THE FAILURE PERSISTED. THE CONTACT ALSO CHANGED THE WIRES TO THE BATTERY CABLES. THE VEHICLE WAS TAKEN TO A DEALER. THE TECHNICIAN WAS UNABLE TO DIAGNOSE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 214,000. THE VIN WAS NOT AVAILABLE.
NHTSA complaint #10711769 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
THE EVENING OF 3/7/15 MY WIFE AND I DROVE FROM CEDAR RAPIDS, IA. TO OUR HOME IN MUSCATINE, IA. AS WE EXITED I-80 AFTER ALMOST ONE HOUR OF CONSTANT INTERSTATE DRIVING, THE CAR STALLED AT APPROXIMATELY 5 MPH AS WE CAME TO THE STOP SIGN AT THE END OF THE EXIT RAMP. WE LOST POWER STEERING AND POWER BRAKES AS WELL, CAUSING PANIC. THIS IS NOT THE FIRST TIME THIS HAS HAPPENED IN THE TWO YEARS WE HAVE OWNED THIS CAR. IT SEEMS TO OCCUR AFTER PROLONGED INTERSTATE DRIVING ONLY. IT DID NOT OCCUR THAT MORNING BECAUSE WE BROKE UP THE TRIP TO CR WITH A STOP IN IOWA CITY. THIS IS A HORRIBLY DANGEROUS CONDITION AND AFTER RESEARCHING ON THE INTERNET LAST NIGHT, A VERY INHERENT PROBLEM WITH THIS MODEL AND YEAR. TOYOTA'S TSB EG003-96 SPEAKS OF IT AND ITS REMEDY, PUBLISHED 10/7/96. THE REMEDY IS TO REPLACE THE FAULTY ECM WITH PART 89661-50224; A VERY EXPENSIVE FIX AND PRESUMABLY THE REASON TOYOTA DID NOT VOLUNTARILY RECALL THE CAR. THERE WAS NO FORCED RECALL EITHER, BUT SHOULD HAVE BEEN DUE TO THE MANY COMPLAINTS REPORTEDLY SUBMITTED TO THE NHTSA AND POTENTIAL DEADLY CONSEQUENCES OF LOSING CONTROL OF THE VEHICLE DUE TO FAULTY ECM PROGRAMMING. PLEASE MAKE THIS POSTING AVAILABLE TO ANY POTENTIAL 1995 LS400 OWNERS AND/OR FORCE A RECALL OF THIS VEHICLE.
NHTSA complaint #10692841 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
OWNER WAS DRIVING AN A BUSY STREET AT 25 MILES PER HOUR AND NOTICED THE INSTRUMENT CLUSTER WAS NOT WORKING. OWNER DROVE VEHICLE INTO A PARKING LOT. VEHICLE WAS STOPPED. VEHICLE WAS RESTARTED AND INSTRUMENT CLUSTER BEGAN TO FUNCTION AGAIN. OWNER DROVE THE VEHICLE FROM THE PARKING LOT, HIT A SMALL POTHOLE. THE INSTRUMENT CLUSTER FAILED AGAIN. OWNER TOOK THE VEHICLE TO DEALER. VEHICLE WAS INSPECTED AND THE INSTRUMENT PANEL, CIRCUIT BOARD AND GAUGE KIT WERE REPLACE AT A COST OF $1335.02.
NHTSA complaint #10622431 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM:IGNITION
TL* THE CONTACT OWNS A 2000 LEXUS LS400. THE CONTACT HAD A NEW KEY MADE FOR HER VEHICLE, WHICH CAUSED THE IGNITION TO FAIL. THE VEHICLE WOULD STALL AND THE CONTACT WOULD BE UNABLE TO REMOVE THE KEY FROM THE IGNITION. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS 104,000. UPDATED 09/16/14*LJ THE CONSUMER STATED THE DEALER REFUSED TO REPLACE THE KEY OR REFUND THE COST OF THE BATTERIES. THE DEALER FAILED TO DETERMINE THAT THE TIRES WERE ROTTEN DURING SERVICE CHECK, FAILED TO PROVIDE WORKING BATTERIES FOR KEYS AND ORIGINAL COPY OF KEY. THERE WAS AN OVERFLOW OF TRANSMISSION FLUID FOUR TIMES. UPDATED 1/16/2015
NHTSA complaint #10621534 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
TL* THE CONTACT OWNS A 1995 LEXUS LS400. WHILE DRIVING VARIOUS SPEEDS, THE VEHICLE WOULD SUDDENLY STALL. IN ADDITION, THE INSTRUMENT PANEL INDICATORS WOULD RANDOMLY ILLUMINATE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE VIN WAS UNAVAILABLE. THE FAILURE MILEAGE WAS 160,000.
NHTSA complaint #10615542 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
TL* THE CONTACT OWNS A 1990 LEXUS LS400. THE CONTACT STATED THAT THE FRONT DRIVERS SIDE DOOR FAILED TO UNLOCK FROM THE INSIDE OR OUTSIDE OF THE VEHICLE. THE CONTACT ATTEMPTED BOTH AUTOMATICALLY AND MANUALLY BUT THE DOOR FAILED TO UNLOCK AND OPEN. THE CONTACT STATED THAT HE HAD NO ALTERNATIVE BUT TO EXIT THROUGH THE PASSENGERS SIDE DOOR. THE VEHICLE WAS TAKEN TO A DEALER WHERE THE FAILURE WAS UNABLE TO BE REPLICATED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE AND CURRENT MILEAGE WAS 130,000.
NHTSA complaint #10594578 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
WHILE TRAVELING ON THE INTERSTATE AT NIGHT-TIME, THE LIGHTING ON THE INSTRUMENT PANEL WENT COMPLETELY DARK AND IT BECAME IMPOSSIBLE TO READ ANY OF THE CARS INSTRUMENTATION SUCH AS VEHICLE SPEED AND WARNING INDICATORS. AT VARIOUS TIMES SINCE THEN THE GAUGES IN THE INSTRUMENT PANEL HAVE ALSO BECOME UNRELIABLE, THESE INCLUDE THE FUEL LEVEL GAUGE, THE SPEEDOMETER, AND THE TACHOMETER. AT TIMES THEY WILL NOT MOVE FROM THEIR "0" SETTING, SUCH AS WHEN THE VEHICLE IS POWERED OFF, UNTIL THEY WARM-UP OR YOU BANG THE DASH WITH YOUR HAND AND AT OTHER TIMES THEY WILL NOT WORK AT ALL. THE LIGHTING PROBLEM STILL OCCURS ON THE INSTRUMENTS ALSO. THE DEALER SAID ALL THEY COULD DO WAS REPLACE THE INSTRUMENT PANEL AND COMPONENTS IN THE DASH AT A COST OF OVER $2000 PLUS LABOR, SO OFTEN I JUST HAVE TO GUESS HOW FAST I AM DRIVING OR HOW MUCH FUEL IS IN THE CAR AS THE REPAIR WOULD BE ALMOST AS MUCH AS I PAID FOR THE CAR (THE INSTRUMENTS WERE WORKING WHEN I PURCHASED THE CAR).
NHTSA complaint #10583571 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
RECENTLY THE CAR BEGAN TO STUMBLE UNDER ACCELERATION WHILE DRIVING UP A HILL OR MERGING INTO TRAFFIC OR MAINTAINING SPEED WHILE DRIVING ON THE INTERSTATE. I INITIALLY THOUGHT IT WAS A FUEL SUPPLY ISSUE SO I CHANGED OUT THE FUEL FILTER, WITHOUT ANY IMPROVEMENT IN THE PROBLEM. I WAS GOING TO CHANGE THE FUEL PUMP ALSO AND WHILE RESEARCHING ON THE INTERNET I LEARNED OF A PROBLEM WITH BAD ELECTROLYTIC CAPACITORS INSIDE THE CAR'S ECU (ENGINE COMPUTER) WHICH CAN MIMIC A FUEL SUPPLY PROBLEM. I AM A TRAINED ELECTRONICS TECHNICIAN, SO I REMOVED AND DISASSEMBLED THE VEHICLE'S ECU AND REPLACED 2 CAPACITORS (COST, LESS THAN $1) THAT I COULD SEE WERE BAD (LEAKING ELECTROLYTE FLUID). I TEST DROVE THE CAR AND THE "FUEL SUPPLY PROBLEM" WAS GONE, IT DROVE NORMALLY AGAIN AND DID NOT STUMBLE WHEN THE ACCELERATOR PEDAL WAS PRESSED. I ORDERED THE OTHER 5 OR 6 ELECTROLYTIC CAPACITORS IN THE ECU (FROM AN OUTSIDE SOURCE, THE DEALER WILL ONLY SELL A COMPLETE ECU FOR $2000 PLUS) TO HOPEFULLY PREVENT FUTURE OCCURRENCES. IN CONCLUSION, IT APPEARS THE BAD CAPACITORS ARE THE RESULT OF A "LARGE-SCALE INDUSTRIAL ESPIONAGE FOUL-UP". NOT A JOKE! THIS RESULTED IN DEFECTIVE CAPACITORS BEING USED IN MANY ELECTRONIC ASSEMBLIES (CONSUMER ELECTRONICS, AUTOMOTIVE, HOUSEHOLD, ETC.) UNTIL THE ISSUE WAS DISCOVERED, SEE WWW.BADCAPS.NET FOR THE STORY. I FORGET WHERE I LEARNED OF THE CAPACITOR PROBLEM ON THE LS400, BUT IT WAS JUST BY SEARCHING ONLINE. SO BASICALLY, LEXUS IS CHARGING CUSTOMERS OVER $2000 TO REPAIR A SAFETY ISSUE (THAT IS CAUSED BY LESS THAN $5 WORTH OF PARTS (RETAIL COST) AND A LITTLE SOLDERING SKILLS/LABOR) THAT WAS THE RESULT OF IMPROPERLY DESIGNED/MANUFACTURED ELECTRONIC COMPONENTS FROM THEIR SUPPLIER.
NHTSA complaint #10583578 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
THE DASHBOARD PANEL GOES "BLACK" AND ALL INSTRUMENTATION FAILS AND THIS HAS HAPPENED TO ME THREE TIMES SINCE I HAVE HAD THE CAR. THEN SECOND TIME AT ABOUT 115000 AND THEN AGAIN AT APPROX 129500. WHEN THIS OCCURS THE CAR IS NOT LEGALLY DRIVABLE AS THERE IS NO WAY TO KNOW EXACT SPEED ETC. THIS TYPE OF FAILURE IS NOT UNCOMMON I HAVE BEEN INFORMED BY REPAIR SHOPS AND SHOULD BE INVESTIGATED TO VERIFY THE REAL UNREPORTED BY OWNERS TIMES IT HAS OCCURRED. IT IS A VERY POTENTIAL NOT TO MENTION EXPENSIVE TO REPAIR BOTH IN TIME AND DOLLARS, OUT OF SERVICE APPROX. 10 DAYS AND COSTS OVER $1,150.00 UNTIL TODAY WHEN I HEARD ABOUT YOUR SITE I DID NOT KNOW IT EXISTED OR I WOULD HAVE REPORTED EACH INCIDENT AS IT HAPPENED. NOTE INCIDENT DATE ABOVE INACCURATE BUT IT WAS THE ONLY DATE THE COMPUTER WOULD INPUT SO THAT IS WHY IT IS WHAT IT IS.
NHTSA complaint #10575203 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
THE INSTRUMENT PANEL FLICKERED AND THEN WENT COMPLETELY DARK. FIRST IT WOULD COME BACK ON AFTER THE CAR WAS DRIVEN FOR 10 MINUTES OR MORE. NOW IT DOES NOT LIGHT UP AT ALL. I FEEL THIS IS A SAFETY ISSUE.
NHTSA complaint #10565063 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
WHILE DRIVING OR WHEN FIRST STARTING THE VEHICLE THE WHOLE DASH WILL GO DARK AND NOT LIGHT BACK UP OR KEEP FLICKERING. YOU ARE UNABLE TO SEE HOW FAST YOU ARE GOING OR ANY WARNING LIGHTS AND THE GAS GAUGE DOES NOT WORK WHEN THE DASH LIGHTS GO OUT. DRIVING ALONE IS UNSAFE AND EVEN WITH OUR 2 CHILDREN MAKES IT VERY UNSAFE NOT KNOWING HOW FAST YOU ARE GOING AND FUEL GAUGE NOT WORKING SO YOU COULD RUN OUT OF FUEL AND LEFT STRANDED WITH KIDS ON THE ROAD. MANY COMPLAINTS HAVE BEEN MADE ABOUT THIS PROBLEM AND LEXUS REFUSES ANY ACKNOWLEDGEMENT OF THIS PROBLEM AND SOMETHING REALLY NEEDS TO BE DONE!
NHTSA complaint #10548987 — an unverified report by a vehicle owner.
ELECTRICAL SYSTEM
WHEN THE VEHICLE IS COLD, THE INSTRUMENT PANEL DOES NOT LIGHT UP. IT TAKES ABOUT AN HOUR OF DRIVING TO "WARM UP" THE DASHBOARD AND WILL EVENTUALLY FLICKER. THIS HAPPENS CONSTANTLY AND SEEMS TO BE AN ISSUE WITH ALL LEXUS LS400S. I AM ALSO HAVING AN ISSUE WITH THE POWER STEERING LEAKING. THE LEAKAGE HAS CAUSED MY ALTERNATOR TO GO BAD. I HAVE SINCE REPLACED THE ALTERNATOR, STEERING PUMP AND STEERING RACK. THE ISSUE ALSO SEEMS TO BE FOR ALL LEXUS LS400S.
NHTSA complaint #10478319 — an unverified report by a vehicle owner.