2006 Lexus Sc problems

General information about Lexus-Sc
Overview of popular issues
Recalls list

The Lexus SC (Japanese: レクサス・SC, Rekusasu SC) is a grand tourer that was retailed by Lexus (a luxury vehicle division of Toyota), and built from 1991 until 2010. It features a front-engine, rear-wheel-drive design and seating for up to four passengers. The first-generation SC debuted as the V8-powered SC 400 in 1991, and the I6-powered SC 300 was added in 1992. Both first-generation models were produced until 2000. The second-generation model, the SC 430, went into production in 2001. The SC 430 features a hardtop convertible design and a V8 engine. The first-generation SC was largely styled in California at Calty, and the second-generation SC was mainly conceived at design studios in Europe.

In Japan, the related third-generation Toyota Soarer, with which the first-generation SC originally shared body design and multiple components, featured a separate line-up of vehicle configurations and different powertrains. The third generation Soarer sport coupe, largely identical to the SC 430, was superseded by its Lexus counterpart in Japan when the Lexus marque débuted there in 2005. The SC was the sole coupé in the Lexus lineup until the arrival of the IS C. According to Lexus, the SC designation stands for Sport Coupe. The LC replaced the SC lineup in 2017.

First generation (Z30; 1991)

1991–2000

In the early 1990s, following the début of Lexus, automotive press reports indicated a forthcoming Full-size Lexus coupé to compete with other luxury GT coupés of other marques like the Mercedes-Benz CL, Acura Legend coupe and later the Acura CL, Mazda Eunos Cosmo, Buick Riviera, Cadillac Eldorado, Lincoln Mark VIII, Jaguar XJS, Bentley Continental, Maserati Shamal/Ghibli, Ferrari 456 and BMW 8 Series coupe. At that point, Toyota had no genuine luxury coupés in its model range. A coupe would complement the successful Lexus flagship model, the V8-powered, rear-wheel drive LS 400 sedan. The coupé was going to be targeted towards the American market, and the development effort for its exterior design was handed over to the Calty Design Research center in California in 1987.

The American Calty design team took a different approach to designing the car, using plaster molding shapes to design the body, and working three-dimensionally instead of the traditional 2-D sketch approach. As described by design chiefs Denis Campbell and Erwin Lui, the result was a car that was based on "emotion and feeling" rather than linear aesthetics. The resulting design possessed almost no straight edges, and produced a drag coefficient of Cd=0.31. The production design concept by Lui was approved at the beginning of 1989, resulting in Lui being sent back to Japan for 4 months to assist in completion of the production design. According to automotive journalist Bill Russ, the SC design was considered influential among automotive designs of the time.

Production of the Soarer started in April 1991 at the Motomachi plant in Toyota, Aichi, with the Lexus SC produced alongside the Soarer at a second Higashi Fuji plant at Susono, Shizuoka. Motomachi-sourced cars lasted until April 1997. The Lexus SC platform was used to develop Toyota's next generation Supra, both vehicles were manufactured in the same plant.

The SC 400 débuted on 1 June 1991 in the United States as a 1992 model. The SC 400's 4.0 L V8 1UZ-FE, the same engine as used in the LS 400, was reported to have cost over US$400,000,000 in research and development. The engine sits behind the front axles, which makes it a front mid engine rear wheel drive vehicle. The SC 400 was honored as the Motor Trend Import Car of the Year for 1992. It also made Car and Driver magazine's Ten Best list from 1992 through 1996.

In July 1992, the SC 300, a smaller-engined version of the SC 400, premiered in the United States. The SC 300 was equipped with a 3.0 L inline 6 2JZ-GE. Lexus' traction control system, TRAC, was offered as an option.

The first-generation SC lasted in production until 7 July 2000, over nine years, quite long compared to the other cars of the 1990s. Even with the SC's long production cycle, only minor exterior changes were made. New tail lighting and a modified spoiler design was part of the mid-cycle vehicle refresh. A front grille was added in 1996, along with a redesigned front bumper, side skirts and rocker panels. The SC 400 produced 250 hp (186 kW)/260 lb⋅ft (353 N⋅m) from 1991 to 1995. The original 1991–1997 engines for the 2JZ-GE-powered SC 300 were rated at 225 hp (168 kW)/210 lb⋅ft (285 N⋅m). The output of the SC 300 was 5 horsepower more than the equivalent engine used in the Toyota Supra.

In 1996, the SC 400's 1UZ-FE engine design was upgraded to 260 hp (194 kW) from 250 hp (186 kW). These engines were coupled with a 4-speed automatic transmission on both the SC 300 and SC 400 models. A 5-speed manual transmission was only offered on the SC 300 from its debut until 1997.

By the end of the decade, North American SC sales began dwindling due to the lack of significant design updates since the car's introduction and marketplace changes that led to loss of interest in coupes.

In 1997 (1998 model year), both the SC 300 and 400 were upgraded with VVT-i and thus the ratings were raised to 290 hp (216 kW)/300 lb⋅ft (407 N⋅m) of torque for the SC 400 and 225 hp (168 kW)/220 lb⋅ft (298 N⋅m) of torque for the SC 300. Tests conducted on the new engines showed an acceleration for the SC 400 for years 1992–1995 of 0–60 mph in 6.9 seconds, years 1996–1997 in 6.7 seconds, and years 1998–2000 in 6.1 seconds. For the SC 300 an acceleration 0–60 mph in 6.8 seconds with the 5-speed manual and 7.2 seconds with the 4-speed automatic for all years. This 1997 upgrade included the replacement of the four-speed automatic on the SC 400 to a five-speed unit. With the replacement of the five-speed unit those models also got a new differential with a final drive of 3.27 improving both fuel economy and top speed.

Sales of the automatic transmission SC 300 and SC 400 models formed the vast majority of models purchased. The Lexus SC 400 was never officially sold in the British Isles, but many examples found their way across the Atlantic as personal imports.

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Common 2006 Lexus Sc problems

Based on complaints from owners of the 2006 Lexus SC, several common problems have been identified:

Steering Wheel Vibration: Owners have reported excessive vibration in the steering wheel, which can lead to wandering while driving. This issue is often caused by worn rear top suspension arms or front wheel bearings. If these components are fine, the front control arm bushes may need replacement.
Juddery Gear Changes: Complaints include juddering when shifting gears, likely due to coolant contamination. Flushing the system and refilling it with clear fluid can resolve this issue.
Car Not Starting: Some owners have experienced difficulties starting the car, accompanied by a buzzing or clicking sound from the engine. This is typically caused by a worn-out starter motor, which may require removal of the inlet manifold for replacement.
Overheating Engine: White smoke from the exhaust, milky-white oil, and engine overheating indicate a failed head gasket due to coolant loss. Replacing the head gasket is necessary to address this issue.
Creaking Suspension: A squeaking noise from the front of the car over uneven surfaces can be attributed to worn front sway bar bushes. Replacing these components can eliminate the noise.
Squeaking Front Seats: Squeaking noises from the front seats are often caused by contact between the seat track locating pins and the vehicle floor pan. Removing the locating pins in contact with the pan can resolve this problem.
Slow Roof Mechanism: Owners have reported that the roof mechanism takes longer than usual to fold back. This issue is common in the SC430 and may indicate wear in the roof motor. Replacing the roof motor can address this problem.

These common problems with the 2006 Lexus SC highlight various issues that owners may encounter, ranging from mechanical components to comfort features. Regular maintenance and prompt attention to these issues can help ensure the longevity and performance of the vehicle.

Are Lexus SC430 expensive to maintain?

The annual maintenance cost of a Lexus SC430 is $462.

Does the 2006 Lexus SC430 have a timing belt or a timing chain?

SC430 2001-2010 has a timing belt and replacement interval recommended by Lexus is 90K miles or 7 years.

What does SC mean Lexus?

Sports Coupe

Lexus SC. Aimed at targeting the mid-size luxury coupe market, the SC stood for Sports Coupe. It also has the unique distinction of being one of the few models produced by Lexus without an S or X at the end.

What happened to the Lexus SC?

The SC was discontinued three years later, with 2000 being the final model year; the car was replaced in 2001 by the 2002 SC430 convertible. Lexus made 82,538 examples of the SC, including 49,538 powered by the V-8 and 33,000 with the straight-six.

2006 Lexus Sc complaints

The NHTSA has received 0 complaints about various vehicle components related to the 2006 Lexus Sc.

You can leave your car complaint via the special form below.

2006 Lexus Sc recalls

The National Highway Traffic Safety Administration (NHTSA) has issued 2 recalls for different components of the 2006 Lexus Sc.

2015-05-13

Manufacturer: Toyota Motor Engineering & Manufacturing
Components: AIR BAGS
Summary: Toyota Motor Engineering & Manufacturing (Toyota) notified the agency on May 13, 2015 that they are recalling certain model year 2004 Sequoia vehicles manufactured August 18, 2003, to August 19, 2004, and 2003-2004 Tundra vehicles manufactured March 18, 2003, to August 25, 2004. On June 16, 2015, Toyota expanded the recall to include an additional 1,270,468 vehicles, including model year 2002-2003 and 2005-2007 Sequoia, 2005-2006 Tundra, 2003-2007 Corolla, 2003-2007 Corolla Matrix, 2003-2007 Pontiac Vibe and 2002-2007 Lexus SC vehicles. This is to address a safety defect in the passenger side frontal air bag inflator which may produce excessive internal pressure causing the inflator to rupture upon deployment of the air bag. This recall addresses both the passenger side frontal air bags that were originally installed in the vehicles, as well as replacement air bags that may have been installed as replacement service parts. A replacement air bag may have been installed, as one example, if a vehicle had been in a crash necessitating the replacement of the passenger side frontal air bag.
Consequence: In the event of a crash necessitating deployment of the passenger's frontal air bag, the inflator could rupture with metal fragments striking the vehicle occupants potentially resulting in serious injury or death.
Remedy: 2003-2004 Corolla and Corolla Matrix vehicles that are recalled under both 15V-043 and 15V-285 are under a Do Not Drive advisory. Owners of these vehicles are advised not to drive their vehicles until the recall remedy has been completed. Toyota will notify their owners. Pontiac Vibe owners will be notified by GM. Dealers will replace the front passenger air bag. The recall began on July 13, 2015. Toyota owners may contact Toyota customer service at 1-800-331-4331. Pontiac owners may call 1-800-762-2737. NOTE: This recall supersedes recall 14V-312 in its entirety.

2015-05-13

Manufacturer: Toyota Motor Engineering & Manufacturing
Components: AIR BAGS
Summary: Toyota Motor Engineering & Manufacturing (Toyota) notified the agency on May 13, 2015, that they are recalling 2005-2007 Lexus SC, Toyota Corolla, Corolla Matrix, Sequoia, and Pontiac Vibe, and 2005-2006 Toyota Tundra vehicles that were originally sold, or ever registered, in Florida, along the Gulf Coast, Puerto Rico, Hawaii, the U.S. Virgin Islands, Guam, Saipan and American Samoa. On June 16, 2015 Toyota expanded the recall to cover an additional 769,055 vehicles, including certain model year 2002-2004 Lexus SC, Toyota Sequoia, 2003-2004 Toyota Corolla Matrix, Toyota Corolla, Pontiac Vibe, and Toyota Tundra vehicles, as well the vehicles covered by the May 13, 2015 notification in the portions of Georgia, Alabama, Louisiana, Mississippi and Texas that were not previously included. The inflators in the front passenger air bags are susceptible to rupture in the event of a crash necessitating the deployment of the front passenger air bag.
Consequence: In the event of a crash necessitating deployment of the passenger's frontal air bag, the inflator could rupture with metal fragments striking the vehicle occupants potentially resulting in serious injury or death.
Remedy: 2003-2004 Corolla and Corolla Matrix vehicles that are recalled under both 15V-043 and 15V-286 are under a Do Not Drive advisory. Owners of these vehicles are advised not to drive their vehicles until the recall remedy has been completed. Toyota will notify their owners. Pontiac Vibe owners will be notified by GM. Dealers will replace the passenger side front air bag, free of charge. Owners may contact Toyota customer service at 1-800-331-4331. Toyota began the recall on July 13, 2015. Pontiac Vibe owners may contact GM at 1-800-762-2737. GM began the recall on June 29, 2015. NOTE: This recacll supersedes recall 14V-655 in its entirety. For vehicles located in the U.S. states not listed above, please see Toyota recall 15V-285 which covers all other U.S. states.

Additional sources

More sources of information about 2006 Lexus Sc problems:

Lexus SC 430 Common Faults, what to look out for before buying ...

https://www.youtube.com/watch?v=643dqzZZqXc

Jun 30, 2020 ... Welcome to my 2004 Lexus SC430 and in this video I talk about some common faults/issues with the SC 430. The SC 430 is overall a reliable ...

SC430 Common Problems, if any?!? - ClubLexus - Lexus Forum ...

https://www.clublexus.com/forums/sc430-2nd-gen-2001-2010/357400-sc430-common-problems-if-any.html

May 26, 2008 ... The CD changer is the most failed item on the car. A few other notes: The brakes are also exceptionally weak. Consider upgrading them. The ...

Here's Why The Lexus SC430 Is NOT "The Worst Car In The World ...

https://www.youtube.com/watch?v=jJ621aQB0hQ

Apr 20, 2018 ... Thanks to a Top Gear special a few years ago, the SC430 is known ... 2006 Lexus SC430 Review - A Misunderstood Luxury Coupe ... Lexus SC 430. Rev ...

Lexus SC430 Problems and Complaints - 7 Issues

https://repairpal.com/problems/lexus/sc430

Top Lexus SC430 Problems · Volume Control Problems With Premiun Stereo System · Creaking Type Noise From Front Suspension · Electric Trunk Release May not Function ...