# U04A1 on the 2021 Volkswagen ID.4

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

## Bulletins for this model year that name U04A1

- [11014953](https://open.wenmarpro.com/bulletins/11014953), 2025-03-05: Customer states MIL\-on, P0442 stored in ECM memory; Customer states Electrical System Error Message, U04A1 \[42304\], U04A5 \[42336\], and/or U04A9 \[42444\] stored in DA:008C; Customer states vehicle does not start; key not detected. No communication to J519 active. AW 19: U014000\[2170894\]\[2240526\], B1248F3\[1074443\], U17B900\[8398624\] active DTC’s; Customer states wind noise and or water ingress; Customer states middle row seat rattles; Customer states vibration from front of the vehicle at highway speeds; Customer states there is a noise from the front of the vehicle; Customer states there is a leak from the front of the vehicle
- [11014952](https://open.wenmarpro.com/bulletins/11014952), 2025-03-05: Customer states MIL\-on, P0442 stored in ECM memory; Customer states MIL\-on, P0068 stored in ECM memory; Customer states Electrical System Error Message, U04A1 \[42304\], U04A5 \[42336\], and/or U04A9 \[42444\] stored in DA:008C; Customer states vehicle does not start; key not detected. No communication to J519 active. AW 19: U014000\[2170894\]\[2240526\], B1248F3\[1074443\], U17B900\[8398624\] active DTC’s; Customer states wind noise and or water ingress; Customer states middle row seat rattles; Customer states vibration from front of the vehicle at highway speeds; Customer states there is a noise from the front of the vehicle
- [11013864](https://open.wenmarpro.com/bulletins/11013864), 2025-02-06: Customer states MIL\-on, P0442 stored in ECM memory; Customer states MIL\-on, P0068 stored in ECM memory; Customer states the seat cover has discoloration \(usually yellowing\) stains; Customer states Electrical System Error Message, U04A1 \[42304\], U04A5 \[42336\], and/or U04A9 \[42444\] stored in DA:008C; Customer states vehicle does not start; key not detected. No communication to J519 active. AW 19: U014000\[2170894\]\[2240526\], B1248F3\[1074443\], U17B900\[8398624\] active DTC’s; Customer states wind noise and or water ingress; Customer states middle row seat rattles
- [11013859](https://open.wenmarpro.com/bulletins/11013859), 2025-02-06: Customer states MIL\-on, P0442 stored in ECM memory; Customer states MIL\-on, P0068 stored in ECM memory; Customer states the seat cover has discoloration \(usually yellowing\) stains; Customer states Electrical System Error Message, U04A1 \[42304\], U04A5 \[42336\], and/or U04A9 \[42444\] stored in DA:008C; Customer states vehicle does not start; key not detected. No communication to J519 active. AW 19: U014000\[2170894\]\[2240526\], B1248F3\[1074443\], U17B900\[8398624\] active DTC’s; Customer states wind noise and or water ingress
- [11013858](https://open.wenmarpro.com/bulletins/11013858), 2025-02-06: Customer states MIL\-on, P0442 stored in ECM memory; Customer states the seat cover has discoloration \(usually yellowing\) stains; Customer states Electrical System Error Message, U04A1 \[42304\], U04A5 \[42336\], and/or U04A9 \[42444\] stored in DA:008C; Customer states vehicle does not start; key not detected. No communication to J519 active. AW 19: U014000\[2170894\]\[2240526\], B1248F3\[1074443\], U17B900\[8398624\] active DTC’s
- [11011376](https://open.wenmarpro.com/bulletins/11011376), 2024-12-05: Customer states rattle from below the vehicle; Customer states coolant leak/coolant light on; Customer states MIL\-on, P0442 stored in ECM memory; Customer states key FOB lock/unlock functions do not work via button press \(not KESSY\); Customer states the seat cover has discoloration \(usually yellowing\) stains; Customer states MIL\-on, U01B000 stored in ECM memory; Customer states seat belt won't retract; Customer states Electrical System Error Message, U04A1 \[42304\], U04A5 \[42336\], and/or U04A9 \[42444\] stored in DA:008C; Customer states vehicle does not start; key not detected. No communication to J519 active. AW 19: U014000\[2170894\]\[2240526\], B1248F3\[1074443\], U17B900\[8398624\] active DTC’s
- [11010027](https://open.wenmarpro.com/bulletins/11010027), 2024-11-06: Customer states rattle from below the vehicle; Customer states coolant leak/coolant light on; Customer states MIL\-on, P0442 stored in ECM memory; Customer states key FOB lock/unlock functions do not work via button press \(not KESSY\); Customer states seat belt won't retract; Customer states windshield has a visual imperfection, Customer states Electrical System Error Message, U04A1 \[42304\], U04A5 \[42336\], and/or U04A9 \[42444\] stored in DA:008C; Customer states vehicle does not start; key not detected. No communication to J519 active. AW 19: U014000\[2170894\]\[2240526\], B1248F3\[1074443\], U17B900\[8398624\] active DTC’s;Customer states MIL\-on, U01B000 stored in ECM memory
- [11010026](https://open.wenmarpro.com/bulletins/11010026), 2024-11-06: Customer states rattle from below the vehicle; Customer states MIL\-on, P0442 stored in ECM memory; Customer states key FOB lock/unlock functions do not work via button press \(not KESSY\); Customer states seat belt won't retract; Customer states windshield has a visual imperfection, Customer states Electrical System Error Message, U04A1 \[42304\], U04A5 \[42336\], and/or U04A9 \[42444\] stored in DA:008C; Customer states vehicle does not start; key not detected. No communication to J519 active. AW 19: U014000\[2170894\]\[2240526\], B1248F3\[1074443\], U17B900\[8398624\] active DTC’s;Customer states MIL\-on, U01B000 stored in ECM memory
- [11008867](https://open.wenmarpro.com/bulletins/11008867), 2024-10-09: Customer states rattle from below the vehicle; Customer states MIL\-on, P0442 stored in ECM memory; Customer states key FOB lock/unlock functions do not work via button press \(not KESSY\); Customer states seat belt won't retract; Customer states windshield has a visual imperfection, Customer states Electrical System Error Message, U04A1 \[42304\], U04A5 \[42336\], and/or U04A9 \[42444\] stored in DA:008C; Customer states vehicle does not start; key not detected. No communication to J519 active. AW 19: U014000\[2170894\]\[2240526\], B1248F3\[1074443\], U17B900\[8398624\] active DTC’s; Customer states Automatic headlights and or rain\-sensing wipers do not work AW 09: U10F600\[934148\], B136629\[934664\], U10F500\[939524\] active DTC’s. Customer states MIL\-on, U01B000 stored in ECM memory
- [11007400](https://open.wenmarpro.com/bulletins/11007400), 2024-09-06: Customer states rattle from below the vehicle; Customer states MIL\-on, P0442 stored in ECM memory; Customer states key FOB lock/unlock functions do not work via button press \(not KESSY\); Customer states seat belt won't retract; Customer states windshield has a visual imperfection, Customer states Electrical System Error Message, U04A1 \[42304\], U04A5 \[42336\], and/or U04A9 \[42444\] stored in DA:008C; Customer states vehicle does not start; key not detected. No communication to J519 active. AW 19: U014000\[2170894\]\[2240526\], B1248F3\[1074443\], U17B900\[8398624\] active DTC’s; Customer states Automatic headlights and or rain\-sensing wipers do not work AW 09: U10F600\[934148\], B136629\[934664\], U10F500\[939524\] active DTC’s.