NHTSA service bulletin

NHTSA Service Bulletin 10177780: 2002-2021 Lexus Ct Hybrid

Official manufacturer communication context for 2002-2021 Lexus Ct Hybrid, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10177780 summary graphic for 2002-2021 Lexus Ct Hybrid
10177780NHTSA document ID
Technical service bulletincommunication type
66affected product rows
100/100quality score

Reviewed June 2026 from NHTSA manufacturer communication and service bulletin records. Carchieve is independent and not affiliated with any vehicle manufacturer or government agency.

Quick answer

TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin Nos. ST004-01, SU001-08, and L-SB-0174-08. The aforementioned bulletins are obsolete, and any printed versions should be discarded. Be sure to review the entire content of this service bulletin before proceeding. This Service Bulletin provides best practice procedures for vehicle pulling complaint, diagnosis, and repair for 2002 ? 2021 model year Lexus vehicles. This information supplements Repair Manual procedures when the symptoms are: ?Vehicle Pulling: The vehicle moves to the right or left when the driver holds the steering wheel while driving straight ahead without exerting steering effort. ?Steering Wheel Off Center: The vehicle travels straight, but the steering wheel is not pointed straight ahead. The vehicle is not pulling. Before repairing a vehicle pulling to one side, it is necessary to clearly identify the cause of the pulling condition. Frequently, pulling to one side is diagnosed as a wheel alignment concern. However, the actual cause may be related to the lateral force generated by the tires, vehicle damage, road crown or worn components. Performing a wheel alignment when tire force is the cause could result in the wheel alignment being set at a value outside of specifications. This could then cause other problems such as uneven tire wear, etc. A customer may notice a pull to the left when in the left lanes of travel and notice a pull to the right or no pull when traveling in the right lanes of travel on the very same section of roadway. This road crown effect is environmental and cannot be corrected with suspension adjustments or any other wheel or tire modification discussed in this bulletin.

What this bulletin may mean before buying

Treat this as service research, not a verdict on one car. Before you buy, compare this communication with official recall campaigns, model-level owner complaint patterns, and the exact vehicle’s VIN-decoded specifications. A bulletin can help you ask a seller or dealer sharper questions about software updates, known repairs, warranty extensions and service history.

Affected products listed in this communication

MakeModelModel yearsBuyer note
LexusCt Hybrid2010-2019Ask for service records and run the exact VIN before purchase.
LexusEs2002, 2003, 2005, 2008, 2009, 2011, 2012, 2013, 2019Ask for service records and run the exact VIN before purchase.
LexusEs 3302004Ask for service records and run the exact VIN before purchase.
LexusEs 3502007, 2014Ask for service records and run the exact VIN before purchase.
LexusEs Hybrid2012-2021Ask for service records and run the exact VIN before purchase.
LexusEs3002002, 2003, 2005, 2006, 2013Ask for service records and run the exact VIN before purchase.
LexusEs3302005, 2006, 2010Ask for service records and run the exact VIN before purchase.
LexusEs3502007, 2008, 2009, 2010, 2011, 2012, 2013, 2015, 2016, 2017, 2018, 2019, 2020, 2021Ask for service records and run the exact VIN before purchase.
LexusGs2002-2013Ask for service records and run the exact VIN before purchase.
LexusGs 200t2013-2019Ask for service records and run the exact VIN before purchase.
LexusGs 3502006-2020Ask for service records and run the exact VIN before purchase.
LexusGs 4302004Ask for service records and run the exact VIN before purchase.
LexusGs F2015-2020Ask for service records and run the exact VIN before purchase.
LexusGs Hybrid2006, 2007, 2008, 2009, 2010, 2011, 2013, 2016, 2017, 2018, 2019Ask for service records and run the exact VIN before purchase.
LexusGs3002002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020Ask for service records and run the exact VIN before purchase.
LexusGs4302002, 2003, 2005, 2006, 2007, 2008, 2009Ask for service records and run the exact VIN before purchase.
LexusGs450h2007, 2008, 2009, 2012, 2014, 2015Ask for service records and run the exact VIN before purchase.
LexusGs4602006-2017Ask for service records and run the exact VIN before purchase.

Buyer checklist

  1. Run the 17-character VIN and confirm the year, make, model, engine and equipment match the listing.
  2. Check recall campaign pages for safety actions that may require dealer repair.
  3. Compare this bulletin with common problem pages for the same model and component area.
  4. Ask the seller or dealer whether the bulletin procedure, update or inspection has already been completed.
  5. Use the used-car buying checklist and get an independent inspection.

Frequently asked questions

What is NHTSA service bulletin 10177780?

TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin Nos. ST004-01, SU001-08, and L-SB-0174-08. The aforementioned bulletins are obsolete, and any printed versions should be discarded. Be sure to review the entire content of this service bulletin before proceeding. This Service Bulletin provides best practice procedures for vehicle pulling complaint, diagnosis, and repair.

Is a service bulletin the same as a recall?

No. A recall is a safety campaign with a required remedy for affected VINs. A service bulletin or manufacturer communication usually describes diagnostic, repair, software, warranty or service information.

How should a used-car buyer use this bulletin?

Use it as a research signal. Compare it with recalls, owner complaints, service records, a VIN report and an independent inspection before buying.

Check the exact VIN before you buy

Model-level pages show public safety patterns. A full VIN report helps confirm the exact vehicle, decoded specs, recall applicability and buyer checks.

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