IllustrationWHILE BACKING OUT AND SHIFTING INTO DRIVE VEHICLE SURGED FORWARD. AS A RESULT, VEHICLE CRASHED INTO A BUILDING. UPON IMPACT, DUAL AIRBAGS DEPLOYED UPON IMPACT. *AK *LA
1999 Lexus GS400
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all GS400 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 11 of 17 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Vehicle Speed Control. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 4 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Suspension. Review the 4 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
6 crash reports0 fire reports2 injury reports
What owners actually said
17 reportsFRONT SUSPENSION HAS CLUNK NOISE WHEN GOING OVER SPEED BUMP IN SLOW SPEED. DEALER NEVER ABLE TO RESOLVE THE PROBLEM AND SAME SYMPTON RECUR EVERY 6K MILES AFTER DEALER REPAIR THE SUSPENSION.
THE VEHICLE EXPERIENCED SUDDEN ACCELERATION. *JB
VEHICLE EXPERIENCING PROBLEM WITH TRACTION CONTROL WHILE DRIVING ON SNOW COVERED ROADS, CAUSING VEHICLE TO FISHTAIL TO RIGHT. DEALER NOTIFIED. PLEASE FEEL FREE TO PROVIDE ANY FURTHER DETAILS ON THIS MATTER. *AK
VEHICLE HAS A FAST SHUDDER OF THE STEERING WHEEL AT HIGHWAY SPEEDS. IT ALSO HAS A VIBRATION IN THE SEATS AT 45 MPH. WE REPLACED THE TIRES THREE TIMES WITH DIFFERENT TYPES AND CANNOT ELIMINATE THE VIBRATION. IT MUST BE A SUSPENSION PART. THEY DID SWAP THE REAR AXLE AND DIFFERENTIAL WITH ANOTHER CAR ON THEIR LOT. A NEW DRIVES…
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VEHICLE HAS A FAST SHUDDER OF THE STEERING WHEEL AT HIGHWAY SPEEDS. IT ALSO HAS A VIBRATION IN THE SEATS AT 45 MPH. WE REPLACED THE TIRES THREE TIMES WITH DIFFERENT TYPES AND CANNOT ELIMINATE THE VIBRATION. IT MUST BE A SUSPENSION PART. THEY DID SWAP THE REAR AXLE AND DIFFERENTIAL WITH ANOTHER CAR ON THEIR LOT. A NEW DRIVESHAFT WAS ALSO INSTALLED.
WHILE DRIVING ENGINE WILL JUST DIE OUT, CAUSING A LOSS OF ALL POWER. DEALER HAS BEEN CONTACTED.*AK
ON AT LEAST SIX OCCASIONS AS MY HUSBAND AND SON APPLIED THE BRAKE TO STOP THE CAR JERKED FORWARD. THIS WAS CAUSED BY THEIR FOOT OVERHANGING THE BRAKE AND WHEN DEPRESS THIS OVERHANG HITS THE ACCELERATOR. THE LAST TIME IN MAY WAS THE MOST SIGNIFICANT ONE . IN THE PROCESS OF PARKING THE CAR IN A RESTAURANT THE CAR JUMPED FORWARD AN…
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ON AT LEAST SIX OCCASIONS AS MY HUSBAND AND SON APPLIED THE BRAKE TO STOP THE CAR JERKED FORWARD. THIS WAS CAUSED BY THEIR FOOT OVERHANGING THE BRAKE AND WHEN DEPRESS THIS OVERHANG HITS THE ACCELERATOR. THE LAST TIME IN MAY WAS THE MOST SIGNIFICANT ONE . IN THE PROCESS OF PARKING THE CAR IN A RESTAURANT THE CAR JUMPED FORWARD AND WAS STOPPED BY A CEMENT PARKING BARRIER. *AK
Official recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1DP03003 · Unintended Engine Speed Increase/sa
Opened Jul 17, 2003 · Closed Sep 23, 2003
Status: closed (inferred from source dates) · Vehicle Speed Control:linkages
ON MAY 13, 2003 THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION (NHTSA) RECEIVED AN APRIL 25, 2003 LETTER FROM MR. PETER BODDAERT PETITIONING THE AGENCY TO CONDUCT A PETITION ANALYSIS OF CERTAIN 1997 THROUGH 2000 MODEL YEAR LEXUS 300 AND 400 SERIES VEHICLES FOR PROBLEMS OF VEHICLE SPEED CONTROL LINKAGES WHICH RESULTS IN SUDDEN, UNEXPECTED EXCESSIVE (VEHICLE) ACCELERATION EVEN THOUGH THERE IS NO PRESSURE [SIC]APPLIED TO THE ACCELERATOR PEDAL.IN SUPPORT OF HIS PETITION, MR. BODDAERT CITES A NUMBER OF ODI REPORTS CONCERNING VEHICLE SPEED CONTROL LINKAGES IN THE SUBJECT VEHICLES.INCLUDED AMONGST THE THIRTY-SIX REPORTS HE CITES IS ONE INVOLVING A LEXUS THAT COLLIDED WITH FIVE OTHER CARS IN THE SPACE OF ONE-HALF MILE BEFORE IT COULD BE STOPPED.ODI FOUND NO DATA INDICATING THE EXISTENCE OF A DEFECT TREND RELATED TO THE PETITIONER'S ALLEGATIONS AT THIS TIME.THEREFORE, THERE IS NO REASONABLE POSSIBILITY THAT AN ORDER CONCERNING THE NOTIFICATION AND REMEDY OF A SAFETY-RELATED DEFECT WOULD BE ISSUED AS A RESULT OF GRANTING MR. BODDAERT'S PETITION.CONSEQUENTLY, IN VIEW OF THE NEED TO ALLOCATE AND PRIORITIZE NHTSA'S LIMITED RESOURCES TO BEST ACCOMPLISH THE AGENCY'S SAFETY MISSION, THE PETITION IS DENIED.