U211B on Ford vehicles

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.

Bulletins and campaigns Ford filed with NHTSA whose summary names U211B. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

• SSM 52320 Service bulletin
  2024-03-01 · Electrical System — Adas — Blindspot — Warning — Lamp
• Some 2024 F-150 vehicles may set diagnostic trouble code (DTC) U211B:87 in the headlamp control module (HCM) when a diagnostic self-test is performed. This may be due to a HCM communication error within a specified timeframe. DTC U211B:87 does not affect vehicle durability with no effect on vehicle operation and no additional diagnostics or service is required for this condition at this time. Info
• SSM 52730 Service bulletin
  2024-07-19 · Unknown Or Other
• Some 2023-2024 F-Super Duty and 2024 F-150/Nautilus vehicles may set DTC U211B:51 in the telematics control unit (TCU) module after a software update on the TCU is performed at dealer or via over the air (OTA) Update. The DTC U211B:51 in the TCU has no effect on vehicle functionality or connectivity. Replacement or reprogramming of the TCU will not resolve this condition. DTC U211B:51 should be ig
• SSM 52799 Service bulletin
  2024-08-14 · Unknown Or Other
• Some 2024 F-150 vehicles may exhibit diagnostic trouble code (DTC) U211B:87 in the headlamp control module (HCM) when a diagnostic self-test is performed.
• SSM 51475 Service bulletin
  2023-03-23 · Service Brakes, Air — Antilock
• Some 2023 F-Super Duty vehicles may set diagnostic trouble code (DTC) U211B:08 in the ABS module during a diagnostic self-test. This may be due to the ABS modules DTC sensitivity during vehicle key-on/start-up. U211B:08 should be ignored if: no other DTCs are present in the ABS module, the malfunction indicator lamp (MIL) is not illuminated while the engine is running, and no drivability concerns
• SSM 51664 Service bulletin
  2023-05-26 · Electrical System — Body Control Module/Bcm
• Some 2023 F-Super Duty vehicles equipped with SYNC 4 may require a replacement of the body control module (BCM) for various concerns. After programmable module installation (PMI) of the new BCM, diagnostic trouble codes (DTC) U2100:00, U2101:00 and/or U211B:87 may be present. Download and run the Ford Diagnosis and Repair System (FDRS) application titled Trusted Real-Time Operation Network (TRON)
• SSM 51675 Service bulletin
  2023-06-01 · Electrical System — Body Control Module/Bcm
• Some 2023 F-Super Duty vehicles equipped with SYNC 4 may experience programming errors after a replacement of the body control module (BCM) for various concerns. After programmable module installation (PMI) of the new BCM, diagnostic trouble codes (DTC) U2100:00, U2101:00 and/or U211B:87 may be present. Download and run the Ford Diagnosis and Repair System (FDRS) application titled Trusted Real-Ti
• SSM 51884 Service bulletin
  2023-08-24 · Service Brakes, Air — Antilock
• Some 2024 Mustang vehicles may set diagnostic trouble code (DTC) U211B:87 in the ABS module during a diagnostic self-test. This may be due to the modules DTC sensitivity during vehicle key-on/start-up. Replacement or reprogramming of the ABS module may not resolve this condition. U211B:87 should be ignored if: no other DTCs are present, no warning indicators are illuminated while the engine is run
• SSM 52242 Service bulletin
  2024-02-08 · Service Brakes, Air — Antilock
• Some 2024 Mustang vehicles may set diagnostic trouble code (DTC) U211B:87 in the ABS module during a diagnostic self-test. This may be due to the ABS module's DTC sensitivity during vehicle key-on/start-up. To correct the condition, reprogram the ABS module using the latest software level of the Ford Diagnosis and Repair System (FDRS) diagnostic scan tool. For claiming, use the causal part number
• SSM 52589 Service bulletin
  2024-06-05 · Service Brakes
• Some 2024 Mustang vehicles built on or before 10-Feb-2024 may set diagnostic trouble code (DTC) U211B:87 in the ABS module during a diagnostic self-test. This may be due to the modules DTC sensitivity during vehicle key-on/start-up. Replacement or reprogramming of the ABS module may not resolve this condition. U211B:87 should be ignored if no other DTCs are present, no warning indicators are illum
• SSM 52759 Service bulletin
  2024-07-30 · Unknown Or Other
• Some 2025 Explorer/Aviator/Police Interceptor Utility vehicles may set diagnostic trouble code (DTC) U211B:87 in the headlamp control module (HCM) when a diagnostic self-test is performed. This may be due to a HCM communication error within a specified timeframe. DTC U211B:87 does not affect vehicle durability with no effect on vehicle operation and no additional diagnostics or service is required
• SSM 53638 Service bulletin
  2025-04-14 · Unknown Or Other
• After replacement of any TRON module, the gateway module (GWM) and the TRON capable modules can set diagnostic trouble codes (DTCs) U211A, U211B, U211C, U3034, U3035, U3036, U35D9, U35DA and/or U35DB if the secret authentication security keys are not aligned between the modules, a loss of communication is occuring between modules and/or a module is not responding. This may be a result of missing t
• SSM 53759 Service bulletin
  2025-05-12 · Unknown Or Other
• After replacement of any TRON module, the gateway module (GWM) and the TRON capable modules can set diagnostic trouble codes (DTCs) U211A, U211B, U211C, U3034, U3035, U3036, U35D9, U35DA and/or U35DB if the secret authentication security keys are not aligned between the modules, a loss of communication is occurring between modules and/or a module is not responding. This may be a result of missing

A stored code names the test that failed, never the part that caused it. The record above is what Ford and its owners have filed about it; the code’s page across every make has the whole file.