B1441 on Lexus vehicles
B1441 is named on 23 Lexus model years (2016–2020): 86 manufacturer filings and 0 owner reports in NHTSA’s files, across GS, IS, RC, RC F, LC and 2 more.
Which Lexus model years name B1441
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2017 Lexus GS | Engine | 12 | — |
| 2017 Lexus IS | Engine | 9 | — |
| 2017 Lexus RC | Engine | 9 | — |
| 2016 Lexus GS | Engine | 8 | — |
| 2016 Lexus IS | Engine | 6 | — |
| 2016 Lexus RC | Engine | 6 | — |
| 2019 Lexus GS | Suspension | 3 | — |
| 2019 Lexus RC | Suspension | 3 | — |
| 2018 Lexus GS | Suspension | 3 | — |
| 2018 Lexus RC | Suspension | 3 | — |
| 2017 Lexus RC F | Suspension | 3 | — |
| 2020 Lexus LC | Visibility/Wiper | 2 | — |
| 2019 Lexus IS | Suspension | 2 | — |
| 2019 Lexus LC | Visibility/Wiper | 2 | — |
| 2019 Lexus LS | Equipment | 2 | — |
| 2018 Lexus IS | Suspension | 2 | — |
| 2018 Lexus LC | Visibility/Wiper | 2 | — |
| 2018 Lexus LS | Equipment | 2 | — |
| 2017 Lexus LX | Suspension | 2 | — |
| 2016 Lexus RC F | Engine | 2 | — |
| 2019 Lexus LX | Suspension | 1 | — |
| 2018 Lexus LX | Suspension | 1 | — |
| 2016 Lexus LX | Engine | 1 | — |
A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.
Lexus filings that name B1441
Source: NHTSA manufacturer communicationsBulletins and campaigns Lexus filed with NHTSA whose summary names B1441. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- L-SB-0019-20 Service bulletin2020-04-24 · Suspension
- 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 Sid
- L-SB-0001-21 Service bulletin2021-01-11 · Air Bags
- TSB: Some 2013 ? 2017 model year Lexus vehicles may exhibit one of the following HVAC conditions. ?Uneven temperature or air flow between the vents ?Little or no air flow from the vent(s) ?Improper MODE control function Additionally, some vehicles may store one or more of the following HVAC servo Diagnostic Trouble Codes (DTCs). ?B1441 ? Air Mix Damper Control Servo Motor Circuit (Fron
- L-SB-0001-21 Rev Service bulletin2021-02-11 · Engine And Engine Cooling
- TSB: Some 2013 ? 2017 model year Lexus vehicles may exhibit one of the following HVAC conditions. ?Uneven temperature or air flow between the vents. ?Little or no air flow from the vent(s). ?Improper MODE control function. Additionally, some vehicles may store one or more of the following HVAC servo Diagnostic Trouble Codes (DTCs). ?B1441 ? Air Mix Damper Control Servo Motor Circuit (F
- L-SB-0009-22 Service bulletin2022-04-04 · Visibility — Defroster/Defogger/Hvac System
- TSB: Some 2018 ? 2020 model year LC 500 and LC 500h vehicles may exhibit one of the following HVAC conditions: ?Uneven temperature or air flow between the vents. ?Little or no air flow from the vent(s). ?Improper MODE control function. Additionally, some vehicles may store one or more of the following HVAC servo Diagnostic Trouble Codes (DTCs): ?B144A ? Air Outlet DEF Damper Control S
- L-SB-0010-22 Service bulletin2022-04-08 · Equipment — Appliance — Air Conditioner
- TSB: Some 2018 ? 2019 model year LS 500 and LS 500h vehicles may exhibit one or more of the following HVAC conditions: ?Uneven temperature or air flow between the vents. ?Little or no air flow from the vent(s). ?Improper MODE control function. Additionally, some vehicles may store one or more of the following HVAC servo Diagnostic Trouble Codes (DTCs): ?B144A ? Air Outlet DEF Damper Co
- L-SB-0002-21 Service bulletin2021-01-11 · Air Bags
- Some 2016 ? 2017 model year LX 570 vehicles may exhibit one or more of the following HVAC conditions: ?Uneven temperature or air flow between the vents. ?Little or no air flow from the vent(s). ?Improper MODE control function. Additionally, some vehicles may store one or more of the following HVAC servo Diagnostic Trouble Codes (DTCs): ?B1441 ? Air Mix Damper Control Servo Motor Circui
What B1441 means
Source: SAE J2012 / OBD-IIB1441 is a manufacturer-specific code: the second character is a 1, which under the OBD-II standard hands the definition to whoever built the vehicle. The same code can mean one thing on a Ford and something unrelated on a Hyundai. Any site that prints a single definition for it is guessing.
A stored code names the test that failed, never the part that caused it. The record above is what Lexus and its owners have filed about it; the code’s page across every make has the whole file.
Common questions
Source: NHTSA files and the OBD-II standardIs B1441 a known problem on Lexus vehicles?
It is a documented one: NHTSA's files hold 86 manufacturer filings and 0 owner reports naming B1441 on 23 Lexus model years (2016–2020). Whether it is a problem on one particular car is a diagnosis, not a count — but a bulletin that names the code on your model year is the place to start.
Which Lexus models does B1441 appear on most?
2017 GS (12 documents), 2017 IS (9 documents), 2017 RC (9 documents).
Does B1441 on a Lexus mean it is recalled?
No. Recalls are filed by campaign and matched by VIN; no recall is triggered by a scan tool. Check the VIN at nhtsa.gov/recalls, or open the model year's page here for the campaigns filed against it.