2003 Lexus SC: common problems
Owners of the 2003 Lexus SC filed 4 complaints with NHTSA, most often about air bags and service brakes. Details by component below, with sources.
Key figures
- Owner complaints
- 4
What fails most often
- 1 Air bags 75% of all complaints
- 2 Service brakes 25% of all complaints
- Air bags: 3 complaints (75% of all).
- Service brakes: 1 complaints (25% of all).
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 4.3 L · petrol · 8 cyl
- automatic, 5-speed
Drive: RWD
Symptoms owners describe
How many of the 4 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Air bags | 3 | 0 | 0 |
| Service brakes | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
While driving home one day four warning lights lit up: VSC, VSC OFF, ABS & BRAKE, plus a very loud warning tone. I cautiously drove home thinking at any moment my brakes may not stop the car in time. I arrived at home & parked in the garage. I needed some time to think what I should do.
Dealer refused to make repairs in asheville after making appointment to repair. The consumer stated that the dealer advised the vehicle could not be repaired in-state.
Received 3 letters on recall #k6fv-aae. Called takata, lexus customer experience, and the closest lexus dealership in santa barbara. Nobody is following up. I am running a business and can only travel out of town on saturday and will lose an entire day.
We received an interim notice regarding the possibility of a malfunction in the passenger air bag and that toyota is working on a remedy. Since this situation could occur before the remedy is developed and implemented I request that nhtsa require toyota provide interim relief in the form of deactivating the passenger…
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 15,521 of 36,656 model years in the NHTSA data (top 42% most complained about).
On average one model year of the SC has 2 complaints (7 years in the data). This year has 4, above average.
What to check before buying
- Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Other years of this model
Questions and answers
What are the most common problems with the 2003 Lexus SC?
Owner complaints to NHTSA most often mention: air bags, service brakes. Total complaints: 4. The most frequent symptoms in complaint texts: rollaway, parking brake (25%), warning lights, check engine (25%).
How many service bulletins (TSB) were issued for the 2003 Lexus SC?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2003 Lexus SC from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2003 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.