What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer communications
5Original wording in English
VOLKSWAGEN
Reported code forms U01B000
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…
VOLKSWAGEN
Reported code forms U01B000
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…
VOLKSWAGEN
Reported code forms U01B000
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…
VOLKSWAGEN
Reported code forms U01B000
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…
BRIGHTDROP, BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms U01B0
This service bulletin provides a procedure to repair a customer concern of Stop/Start System Inhibited / IBS / Battery Monitor with Module Malfunction Indicator Light (MIL) Illuminated - DTC U152D, P15FF, P305D, P305E,…
Check vehicle applicability
60A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| BrightDrop | EV600 | 2022 |
| Buick | ENVISION | 2022 |
| Buick | ENVISION | 2021 |
| Cadillac | CT4 | 2022 |
| Cadillac | CT4 | 2021 |
| Cadillac | CT4 | 2020 |
| Cadillac | CT5 | 2022 |
| Cadillac | CT5 | 2021 |
| Cadillac | CT5 | 2020 |
| Cadillac | ESCALADE | 2023 |
| Cadillac | ESCALADE | 2022 |
| Cadillac | ESCALADE | 2021 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.