What breaks most · 1990 to 2001 model years
Lexus SC 400 problems by year
Owners have filed 62 safety complaints with NHTSA about the Lexus SC 400 across model years 1990 to 2001. Three years stand out: 1992 for electrical system complaints, 1993 for speed control and throttle complaints and 1995 for electrical system complaints. The quietest years are 1990, 1997 and 1994.
- Years to check closely: 1992, 1993, 1995
- Fewest complaints: 1990, 1997, 1994
- Complaints on file
- 621990 to 2001, all trims
- Worst year
- 199230 complaints
- Crashes reported
- 111 fires · 1 injuries · 0 deaths
- Typical failure mileage
- 102kMedian where owners gave mileage
- Recall campaigns
- 3Across the years shown
Complaints by model year
Raw filings with NHTSA, not adjusted for how many were sold.
| Model year | Complaints | Crashes | Recalls | Most-reported component |
|---|---|---|---|---|
| 1 | 0 | 0 | Visibility (1) | |
| 30 | 5 | 1 | Electrical system (12) | |
| 9 | 4 | 0 | Speed control and throttle (2) | |
| 2 | 0 | 0 | Steering (1) | |
| 9 | 1 | 0 | Electrical system (2) | |
| 4 | 0 | 1 | Tires (2) | |
| 1 | 0 | 1 | Air bags (1) | |
| 2 | 1 | 0 | Engine and cooling (1) | |
| 2 | 0 | 0 | Exterior lighting (1) | |
| 1 | 0 | 0 | Engine and cooling (1) | |
| 1 | 0 | 0 | Tires (1) |
What fails on the 1992 Lexus SC 400
| Component | Share of complaints | Filings | Crashes | Parts for this job |
|---|---|---|---|---|
| Electrical systemAlternators, starters and ignition | 40% |
12 | 0 | Shop electrical system parts for the 1992 Lexus SC 400 |
| Brakes (hydraulic)Brake pads, rotors and calipers | 17% |
5 | 0 | Shop brakes (hydraulic) parts for the 1992 Lexus SC 400 |
| Exterior lightingHeadlights, tail lights and bulbs | 17% |
5 | 1 | Shop exterior lighting parts for the 1992 Lexus SC 400 |
| Speed control and throttleThrottle and pedal sensors | 13% |
4 | 1 | Shop all speed control and throttle parts, not filtered to this vehicle |
| Unknown or other | 10% |
3 | 0 | — |
| Interior Lighting | 7% |
2 | 0 | — |
| Powertrain and transmissionTransmission parts | 7% |
2 | 0 | Shop all powertrain and transmission parts, not filtered to this vehicle |
| Equipment and infotainment | 7% |
2 | 1 | — |
One complaint can name more than one component, so shares add to more than 100%. "Unknown or other" is NHTSA's uncategorized bucket and is shown but never ranked.
In owners' words
Complaint narratives as filed with NHTSA, trimmed for length.
-
Dash instrument speed, tach, gas, and temperature needles no longer illuminate. Therefore, you can not view them at night and, often, during the day. No adequate repair is available.
-
Consumer was parking vehicle into a parking space when vehicle all of a sudden acceleratted for unknown reason, causing vehicle to rollover two other vehicles, which were damaged. Dealer/ manufacturer notified and informed that nothing could be found. *ak
-
Consumer was driving at approximately 40 mph, went to make a routine stop,vehicle did not slow down. Put vehicle into neutral, caused the vehicle to accelerate , went 3000 rpms for 3-4 seconds. This defect could have resulted in an accident. *ak
How to read this page
Every figure comes from the National Highway Traffic Safety Administration's public complaint database, which holds every safety-related defect complaint filed by owners since 1995. We refresh it monthly and count each complaint once per component it names. Data through September 6, 2026.
NHTSA only accepts safety-related complaints. Rattles, paint, infotainment bugs and other annoyances are under-reported here, so this page is a map of what fails in ways owners consider dangerous, not a full reliability score.
Counts are raw. Use the year-over-year shape and the component mix, not the absolute numbers. Where a component maps to parts we stock, the row links to that category filtered to the year you are viewing. Air bag and seat belt complaints link to the recall checker instead, because those repairs are almost always covered.
Common questions
Which Lexus SC 400 years have the most problems?
By NHTSA complaint volume, 1992, 1993, 1995 carry the most filings on the Lexus SC 400. The 1992 alone has 30 complaints, led by electrical system.
What is the most common Lexus SC 400 problem?
On the 1992 model year, the most-reported component is electrical system with 12 complaints. The table above lists the top components for every year.
At what mileage do Lexus SC 400 problems start?
The median mileage at failure across all Lexus SC 400 complaints that include mileage is about 102,000 miles. Older model years skew higher; the per-year figure is in the "at a glance" card.
Are these complaints verified?
No. NHTSA publishes complaints as submitted and does not investigate individual filings. Patterns across hundreds of complaints are meaningful; a single one is not.