Head Up Display (HUD) Hazard Indicators Inoperative

WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

Step	Action	Yes	No
Schematic Reference: Head Up Display Schematics
1	Did you perform the Instrument Panel Cluster (IPC) Diagnostic System Check?	Go to Step 2	Go to Diagnostic System Check - Instrument Cluster
2	Verify the hazard indicators head-up display (HUD) display are operating properly. Does the system operate normally?	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Turn OFF the ignition. Disconnect the IPC connector. Turn ON the ignition, with the engine OFF. Turn on the hazard switch. Using a test lamp probe the signal circuit of the hazard switch to ground at the IPC. Refer to Circuit Testing in Wiring Systems. Does the test lamp illuminate?	Go to Step 4	Go to Step 5
4	Replace the IPC. Refer to Instrument Panel Cluster (IPC) Replacement . Did you complete the replacement?	Go to Step 7	-
5	Disconnect the hazard warning switch connector. Test the hazard switch signal circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 7	Go to Step 6
6	Replace the hazard warning switch. Refer to 52332 in Lighting Systems. Did you complete the replacement?	Go to Step 7	-
7	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 3