U0158
NetworkModule Communicationlow severityLost Communication with Head-Up Display Module
What U0158 Means
Cannot communicate with the head-up display (HUD) projector module.
Symptoms
- HUD not projecting
- HUD display blank
- HUD settings not accessible
- HUD warning message
Common Causes
- HUD module failure
- CAN bus wiring
- Module power loss
- Fuse blown
- HUD projector lamp failure
Diagnostic Steps
- Check HUD module fuse
- Test power and ground
- Check CAN wiring
- Inspect HUD projector unit
- Test with diagnostic tool
Where to start: Check fuses. HUD projector units can fail from heat exposure on dash.
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