Most common 2003 Lexus SC430 problems
Share of the 20 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Lexus SC430 complaints by model year
Best SC430 years: 2004, 2006, 2005. Years to avoid: 2002, 2007. Compare all years →
2003 Lexus SC430 recalls (1)
Air bags › Frontal › Driver side › Inflator module
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2010-2016 4Runner, 2003-2006 Tundra, 2003-2013 Corolla, 2009-2010 Corolla Matrix, 2004-2005 RAV4, 2002-2007 Sequoia, 2011-2013 Sienna, 2008-2012 Scion xB, 2008-2009 Lexus IS-F, 2007-2012 Yaris and Lexus ES350, 2010-2017 Lexus GX460, 2002-2010 Lexus SC430,…
Remedy: Toyota will notify owners. Depending on the vehicle model, dealers will replace the front driver inflator, front passenger airbag inflator, the airbag assembly, or the front passenger airbag sub-assembly and inflator.
What 2003 Lexus SC430 owners say
Air bags
Tl* Takata recall. The contact owns a 2003 Lexus SC430. The contact received notification of NHTSA campaign number: 19V741000 (air bags) however, the parts to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. Fox Lexus of el paso (11165 gateway blvd w, el paso, tx 79935, [phone]) was contacted and confirmed that parts were not yet available. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.
Received recall notice and scheduled appointment for air bag recall to be repaired. The Lexus dealer held the car for four days before realizing they did not have the parts to make the repair. We were told to pick up the car and they could not tell us when the parts would be available to remedy the recall defect. The notice says not to operate the car with a passenger until the repairs are complete.
Brakes
The car failed to start six times in the first five months. It seems they have found the cause of that problem. However, the car continues to make clunking noise whenever it goes over a bump. Lexus tells me that is normal. I say it sounds like a 1973 Dodge I owned 30 years ago. The car also pulls to the right at low speeds. Again I'm told this is normal and is a result of the run flat tires. If so, they should use other tires. Parking brake light continues to come on intermittently. I have requested that this car be replaced repeatedly. Lexus has refused.
The car veers violently to the left or to the right when braking on a road that is not completely smooth. Depending upon the unevenness in the road, the car will jerk the steering wheel violently either way. We have had the car actually change lanes when braking. Lexus says that this is normal action for this car. If so, there are a lot of people in danger who are driving this model car. This has happened since the car was new. It now has about 3300 miles on it.
Wheels & tires
2003 Lexus SC430 has problems with run flat tires and rims. The rims are bent and dealer said that it was runout caused by excessive driving. I have complained to three dealers, Lexus of grapevine where vehicle was purchased, Lexus of shreveport/bossier and parke Lexus of little rock. I am currently working with the Lexus dispute settlement ctr.
The tpm light turned on. I have adjusted tire pressure, had the dealer adjust tire pressure and had an independent service provider adjust the tire pressure. This was done according to specs. The dealer can not figure out why the tpm light is on and has not offered a remedy.
Frequently asked questions
Is the 2003 Lexus SC430 a good car?
Based on 20 owner complaints filed with NHTSA, the 2003 SC430 rates average: 2.0× as many complaints as a typical year of the SC430 at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2003 Lexus SC430?
The air bags — 10 complaints, 50% of all complaints for this model year. Next are the brakes (4) and wheels & tires (3).
How many recalls does the 2003 Lexus SC430 have?
There is 1 recall for the 2003 Lexus SC430, the most recent from October 17, 2019 (inflator module). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Lexus SC430?
The best years by complaints, compared at the same age, are 2004, 2006 and 2005. Years to avoid or approach with caution: 2002 and 2007. See the full Lexus SC430 years comparison.
At what mileage do 2003 Lexus SC430 problems happen?
The median mileage reported in complaints is about 39,000 miles; 57% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.