NHTSA service bulletin

NHTSA Service Bulletin 10174925: 2017-2019 Lexus Gs 200t

Official manufacturer communication context for 2017-2019 Lexus Gs 200t, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10174925 summary graphic for 2017-2019 Lexus Gs 200t
10174925NHTSA document ID
Manufacturer communicationcommunication type
12affected 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: Some 2017 ? 2019 model year Lexus vehicles may exhibit one or more of the following conditions: ?Uneven temperature or air flow between the vents ?Little or no air flow from the vent(s) ?Improper MODE control function Some vehicles may also exhibit one or more of the following Diagnostic Trouble Codes (DTCs): ?B1441 ? Air Mix Damper Control Servo Motor Circuit (Front Passenger Side Lower Air Mix) ?B1442 ? Air Inlet Damper Control Servo Motor Circuit ?B1443 ? Air Outlet Damper Control Servo Motor Circuit ?B1445 ? Passenger Side Cool Air Bypass Damper Control ?B1446 ? Air Mix Damper Control Servo Motor Circuit (Driver Side Lower Air Mix) ?B1447 ? Rear Air Mix Damper Control Servo Motor Circuit ?B1448 ? Passenger Side Face Servo Motor Circuit ?B1449 ? Rear Air Outlet Damper Control Servo Motor Circuit ?B1453 ? Driver Side Air Outlet Damper COOL Control Servo Motor Circuit ?B1454 ? Passenger Side Air Outlet Damper COOL Control Servo Motor Circuit ?B1455 ? Driver Side Air Outlet Damper FOOT/DEF Control Servo Motor Circuit ?B1457 ? Driver Side Air Outlet Damper Control Servo Motor Circuit ?B1458 ? Passenger Side Air Outlet Damper Control Servo Motor Circuit ?B1486 ? Driver Side Air Outlet Damper Control Servo Motor Circuit ?B1488 ? Rear Air Mix Damper Control Servo Motor Circuit (Front Passenger) Follow the Repair Procedure in this bulletin to address these conditions.

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
LexusGs 200t2017Ask for service records and run the exact VIN before purchase.
LexusGs 3502017-2019Ask for service records and run the exact VIN before purchase.
LexusGs F2017-2019Ask for service records and run the exact VIN before purchase.
LexusGs Hybrid2017-2019Ask for service records and run the exact VIN before purchase.
LexusIs 3002017-2019Ask for service records and run the exact VIN before purchase.
LexusIs 3502017-2019Ask for service records and run the exact VIN before purchase.
LexusIs200t2017Ask for service records and run the exact VIN before purchase.
LexusLx5702017-2019Ask for service records and run the exact VIN before purchase.
LexusRc 200t2017Ask for service records and run the exact VIN before purchase.
LexusRc 3002017-2019Ask for service records and run the exact VIN before purchase.
LexusRc 3502017-2019Ask for service records and run the exact VIN before purchase.
LexusRc F2017-2019Ask 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 10174925?

TSB: Some 2017 ? 2019 model year Lexus vehicles may exhibit one or more of the following conditions: ?Uneven temperature or air flow between the vents ?Little or no air flow from the vent(s) ?Improper MODE control function Some vehicles may also exhibit one or more of the following Diagnostic Trouble Codes (DTCs): ?B1441 ? Air Mix Damper Control Servo Motor Circuit (Front Passenger Side Lower Air Mix) ?B1442 ? Air.

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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