Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBUICK1998LESABRE V6-3.8L VIN KREPAIR AND DIAGNOSISINSTRUMENT PANEL, GAUGES AND WARNING INDICATORSHEADS UP DISPLAY UNIT
1998 Buick LeSabre V6-3.8L VIN K
Heads Up Display Unit
1998 Buick LeSabre V6-3.8L VIN KSECTION Heads Up Display Unit
Description and Operation
Testing and Inspection- Initial Inspection and Diagnostic Overview
- Circuit Operation - Check Gauges and Low Fuel Indicator Inputs
- Circuit Operation - HUD English/Metric Input
- Circuit Operation - HUD Image Dimming with Park Lights ON
- Circuit Operation - HUD Image Intensity Control
- Circuit Operation - HUD Image Position Control
- Circuit Operation - HUD Speedometer
- Circuit Operation - LH Turn Signal, RH Turn Signal, and High Beam Indicator Inputs
- Circuit Operation - Power and Ground
- Initial Inspection
- Preliminary Diagnosis
- System Check
- Symptom Related Diagnostic Procedures
- A Symptom Table
- Chart #1 Head Up Display (HUD) System Inoperative
- Chart #2 Head Up Display (HUD) Does Not Turn Off
- Chart #3 Head Up Display (HUD) Image Does Not Adjust Up & Down
- Chart #4 Head Up Display (HUD) Image Intensity Does Not Dim
- Chart #5 Head Up Display (HUD) Image Intensity
- Chart #6 Head Up Display (HUD) Speedometer Inoperative
- Chart #7 Head Up Display (HUD) Turn Indicator Inoperative
- Chart #8 Head Up Display (HUD) Turn Indicators Always ON
- Chart #9 Head Up Display (HUD) High Beam Indicator Inoperative
- Chart #10 Head Up Display (HUD) High Beam Indicator
- Chart #11 Head Up Display (HUD) Check Gages Indicator INOP
- Chart #12 Head Up Display (HUD) Check Gages Indicator
- Chart #13 Head Up Display (HUD) Low Fuel Indicator Inoperative
- Chart #14 Head Up Display (HUD) Low Fuel Indicator Always ON
- Initial Inspection and Diagnostic Overview
Locations
Diagrams- Diagram Information and Instructions
- Diagnostic Aids
- General Troubleshooting Procedures
- Special Tools
- Wire Repair Procedures
- Circuit Protection Devices
- Typical Electrical Repair Procedures
- Electrical Diagrams
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.