Pinpoint Test H : The Adaptive Cruise Control, Lane Keeping System, Distance Indication, Lane Centering Assist Or Speed Sign Display (Part Of The Active Driver Assist System) Is Inoperative

Normal Operation and Fault Conditions
REFER to: Head Up Display (HUD) - System Operation and Component Description .

Possible Sources
- Communication concern
- IPMA concern
- GWM concern
- HUD module

H1 CHECK THE HUD (HEAD UP DISPLAY) MENU SETTING

Using the RH upper steering wheel switch, select the HUD setup.

Verify the adaptive cruise control, lane keeping system, distance indication, lane centering assist or speed sign display is set to on.

Is the inoperative display set to on?

Yes

GO to H2

No	If the HUD can be set to display any of the active driver assist features, the HUD is operating correctly at this time. The HUD was not set to display the active driver assist features. If the HUD cannot be set to display any of the active driver assist features, GO to Pinpoint Test A .

H2 PERFORM THE IPMA (IMAGE PROCESSING MODULE A) SELF-TEST
- Using a diagnostic scan tool, perform the IPMA self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes REFER to: Lane Keeping System .

No GO to H3

H3 PERFORM THE HUD (HEAD UP DISPLAY) MODULE SELF-TEST
- Using a diagnostic scan tool, perform the HUD module self-test.
- Check for recorded Diagnostic Trouble Codes (DTCs) from the HUD module self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes REFER to DTC Chart: HUD Module in this information. Refer to Diagnostic Trouble Code (DTC) Chart

No GO to H4

H4 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
- Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CM DTCs).
Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes REFER to: Communications Network .

No INSTALL a new HUD module. REFER to: Head Up Display (HUD) Module .