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 MANUALSJEEP2023GRAND CHEROKEE LAREDO X, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOLLISION/AVOIDANCECOLLISION AVOIDANCE SYSTEM - PROGRAMMING AND CALIBRATIONPROGRAMMING AND CALIBRATIONGLOBAL NAVIGATION MOTION MODULE
2023 Jeep Grand Cherokee Laredo X, AWD
Global Navigation Motion Module
2023 Jeep Grand Cherokee Laredo X, AWDSECTION Global Navigation Motion Module
When replacing the Global Navigation Motion Module (GNMM), perform the following steps:
- Load the satellite Ephemeris and Almanac data.
- Position the vehicle to an area where a full range of satellites are in view (Open Sky).NOTE:
No obstructions >10 degrees above the GNMM antenna.
- Connect the scan tool to the vehicle.
- Navigate to the Guided Diagnostics tab.
- Select and perform the "PROXI Configuration Alignment " routine.
- Check the LAT/LONG position is correct for the vehicles current location.
- Verify the GNMM is outputting proper global navigation data by verifying the display coordinates are correct to the vehicles location.
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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.