NHTSA lists 2 safety recalls and 13 owner complaints for the 1997 Lexus LS400. Most complaints involve vehicle speed control (3) and tires (2). The EPA rates it 19 mpg combined.
CERTAIN CK MOTORSPORTS COMBINATION HEADLIGHTS, CLEAR CORNER, BUMPER, AND SIDE MARKER LIGHTS SOLD AS REPLACEMENT LAMPS FOR USE ON THE PASSENGER VEHICLES LISTED ABOVE. SOME COMBINATION LAMPS THAT ARE NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT.
VEHICLE DESCRIPTION: PASSENGER VEHICLES. DUE TO IMPROPER ASSEMBLY OF THE TERMINAL FOR THE STARTER MOTOR MAGNETIC SWITCH, AN ELECTRICAL SHORT CIRCUIT CAN OCCUR IF ELECTRICALLY-CONDUCTIVE LIQUID, SUCH AS ROAD SPLASH WITH DEICING SALT, ENTERS THIS AREA.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
“AS I WAS DRIVING, MY VEHICLE STARTED ACCELERATING ON IT'S OWN. WHEN I HAD PREVIOUSLY CHECKED THE SPEED ODOMETER IT SAID 50. ALL OF A SUDDEN THE VEHICLE STARTED GAINING SPEED. I TOOK MY FOOT OFF OF THE GAS PEDAL AND THE SPEED KEPT ACCELERATING. I PRESSED THE BRAKES AND THE BRAKES DID NOT WORK! THE VEHICLE KEPT ACCELERATING. I SAW A SIDE ROAD AND TURNED ONTO IT. I KEPT TRYING TO STOP THE VEHICLE AND IT KEPT GOING. I THOUGHT TO PULL THE EMERGENCY BRAKE AND IT SLOWED THE VEHICLE CONSIDERABLE, BUT IT KEPT MOVING. THE ENGINE CONTINUED TO ACCELERATE. I KEPT PUMPING THE BREAKS WITH THE EMERGENCY BRAKE ON AND THE CAR WAS STILL MOVING. IT FINALLY STOP, BUT THE ENGINE WAS STILL ACCELERATING. I PUT THE VEHICLE IN PARK AND THE MORE THE ENGINE ACCELERATED. I PUT BACK IN DRIVE AND IT CONTINUED TO ACCELERATE. THE VEHICLE STARTED SMOKING. I DIDN'T KNOW WHAT TO DO OR WHAT WAS GOING TO HAPPEN TO THE VEHICLE. I TOLD MY SONS TO GET OUT OF THE CAR. I TURN THE ENGINE OFF, THE CAR JUMPED AND I RAN AWAY FROM THE CAR. THE VEHICLE WAS STILL SMOKING. I CALLED 911. THE CAR STOPPED SMOKING AND REMAINED IN PLACE. MY HUSBAND CAME AND STARTED THE VEHICLE IT ACCELERATED AND HE PRESSED THE GAS…”
“CRASH CAUSED BY POOR WET TRACTION OF GOODYEAR INTEGRITY TIRES. ACCIDENT WAS PRECEDED BY NUMEROUS INSTANCES OF LOST LATERAL GRIP AND SLIPPING UNDER NORMAL ACCELERATION IN NORMAL DRIVING.”
“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.”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| LS 400 Auto 4-spd, 8 cyl, 4.0 L · Rear-Wheel Drive | 17 | 23 | 19 | $4,200 | 468 |
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
2 safety recalls as of Oct 28, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 13 complaints with NHTSA. The most-cited components are vehicle speed control (3), tires (2), power train (2). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 1997 Lexus LS400 at 19 mpg combined, depending on engine and drivetrain (1 version rated).