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
BRIGHTDROP, CADILLAC, CHEVROLET, GMC
Reported code forms U357A
This Pi is to let dealer know that a program issue has been released and to not replace any hard for codes P2C8A, P2C8B, U3577, U3578, U3579, U357A, U357B, U357C, U357D, U357E, U357F, U3580, U3581, U3582, U3583, U3584,…
BRIGHTDROP, CADILLAC, CHEVROLET, GMC
Reported code forms U357A
This Pi is to let dealer know that a program issue has been released and to not replace any hard for codes P2C8A, P2C8B, U3577, U3578, U3579, U357A, U357B, U357C, U357D, U357E, U357F, U3580, U3581, U3582, U3583, U3584,…
BRIGHTDROP, CADILLAC, CHEVROLET, GMC
Reported code forms U357A
This Pi is to let dealer know that a program issue has been released and to not replace any hard for codes P2C8A, P2C8B, U3577, U3578, U3579, U357A, U357B, U357C, U357D, U357E, U357F, U3580, U3581, U3582, U3583, U3584,…
CADILLAC, CHEVROLET
Reported code forms U357A
This Preliminary Information communicates that, under certain conditions, a MIL (Malfunction Indicator Lamp) illumination or a "Service High Voltage" message may display on the IPC (Instrument Panel Cluster), and the…
CADILLAC, CHEVROLET
Reported code forms U357A
This Preliminary Information communicates that, under certain conditions, a MIL (Malfunction Indicator Lamp) illumination or a "Service High Voltage" message may display on the IPC (Instrument Panel Cluster), and the…
Check vehicle applicability
35A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| BrightDrop | 600 ELCV | 2024 |
| BrightDrop | 600 ELCV | 2023 |
| BrightDrop | ZEVO 400 | 2024 |
| BrightDrop | ZEVO 600 | 2024 |
| BrightDrop | ZEVO 600 | 2023 |
| Cadillac | ESCALADE IQ | 2026 |
| Cadillac | ESCALADE IQ | 2025 |
| Cadillac | ESCALADE IQL | 2026 |
| Cadillac | LYRIQ | 2025 |
| Cadillac | LYRIQ | 2024 |
| Cadillac | LYRIQ | 2023 |
| Cadillac | OPTIQ | 2025 |
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.