U0158 low

Lost Communication With Head-Up Display Module

The U0158 code means the vehicle's onboard diagnostic system has detected: Lost Communication With Head-Up Display Module. This is a low severity code.

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Keep driving?
Yes, but fix soon
DIY difficulty
moderate
Estimated cost
$200 - $1500 (parts and labor)
Diagnose CAN Bus Issues
LAUNCH CRP123X Full System Scanner

Network codes mean modules are not communicating. You need a scanner that reads all systems to find the problem.

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Common Symptoms

  • Head-up display (HUD) not projecting on windshield
  • HUD image flickering or distorted
  • HUD settings not saving or adjustable
  • HUD warning message on dashboard
  • Navigation or speed display missing from windshield projection

Probable Causes (Ranked by Likelihood)

  • Failed head-up display module or projector Very High
  • Damaged CAN bus wiring to HUD module High
  • HUD module overheating in direct sunlight Moderate
  • Windshield replaced without HUD-compatible glass Moderate
  • HUD mirror or lens dirty or damaged Low

Step-by-Step Diagnostic Procedure

  1. Scan for DTCs in the HUD and body control modules

  2. Check if the HUD module is overheating -- feel for excessive heat on the dashboard

  3. Verify the windshield is HUD-compatible if recently replaced

  4. Check CAN bus wiring and connector at the HUD module

  5. Verify power supply and ground at the HUD module

Frequently Asked Questions

Can I drive with code U0158?

Yes. The head-up display is a convenience feature only. All driving information is still available on the main instrument cluster.

Can windshield replacement cause U0158?

If the windshield was replaced with glass that is not HUD-compatible, the HUD projection may not work correctly. HUD-equipped vehicles require a special laminated windshield with an anti-reflective coating in the HUD projection area.

Is HUD repair expensive?

HUD module replacement can cost $200 to $1500. The projector unit is located on top of the dashboard and requires careful removal. Some vehicles also need programming after replacement.

Sources

This page is built from documented references. Verify against your own service info before repair work.

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