NHTSA service bulletin

NHTSA Service Bulletin 10204556: 2006-2019 Lexus Ct Hybrid

Official manufacturer communication context for 2006-2019 Lexus Ct Hybrid, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10204556 summary graphic for 2006-2019 Lexus Ct Hybrid
10204556NHTSA document ID
Technical service bulletincommunication type
28affected product rows
90/100quality 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: For proper calibration of the millimeter wave radar sensor, the vehicle and radar target must be on a level surface with a consistent plane. If a level surface with a consistent plane is not available, use the Floor Slope Compensation Procedure in this service bulletin in conjunction with the appropriate model and model year Repair Manual instructions when adjusting the millimeter wave radar sensor.

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 Hybrid2011-2017Ask for service records and run the exact VIN before purchase.
LexusEs Hybrid2013-2015Ask for service records and run the exact VIN before purchase.
LexusEs3502007-2015Ask for service records and run the exact VIN before purchase.
LexusGs 3502007, 2008, 2009, 2010, 2011, 2013, 2014, 2015Ask for service records and run the exact VIN before purchase.
LexusGs Hybrid2010, 2013Ask for service records and run the exact VIN before purchase.
LexusGs3002006Ask for service records and run the exact VIN before purchase.
LexusGs4302006, 2007Ask for service records and run the exact VIN before purchase.
LexusGs450h2007, 2008, 2009, 2011, 2014, 2015Ask for service records and run the exact VIN before purchase.
LexusGs4602008-2011Ask for service records and run the exact VIN before purchase.
LexusGx4602010-2019Ask for service records and run the exact VIN before purchase.
LexusHs 250 Hybrid2010-2012Ask for service records and run the exact VIN before purchase.
LexusIs 2502006-2015Ask for service records and run the exact VIN before purchase.
LexusIs 250c2010-2015Ask for service records and run the exact VIN before purchase.
LexusIs 3502006-2016Ask for service records and run the exact VIN before purchase.
LexusIs 350c2010-2015Ask for service records and run the exact VIN before purchase.
LexusIs F2008-2014Ask for service records and run the exact VIN before purchase.
LexusIs200t2016Ask for service records and run the exact VIN before purchase.
LexusLs4602007-2017Ask 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 10204556?

TSB: For proper calibration of the millimeter wave radar sensor, the vehicle and radar target must be on a level surface with a consistent plane. If a level surface with a consistent plane is not available, use the Floor Slope Compensation Procedure in this service bulletin in conjunction with the appropriate model and model year Repair Manual instructions when adjusting the millimeter wave radar sensor.

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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