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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSGMC2021TERRAIN SLT, 4WDREPAIR AND DIAGNOSISELECTRICALBODY ELECTRICALELECTRICAL COMPONENT LOCATOR AND HARNESS ROUTING VIEWSSCHEMATIC WIRING DIAGRAMSHARNESS ROUTING VIEWSENGINE COMPARTMENT HARNESS ROUTING - RIGHT SIDE OF THE ENGINE COMPARTMENT
2021 GMC Terrain SLT, 4WD
Engine Compartment Harness Routing - Right Side of the Engine Compartment
2021 GMC Terrain SLT, 4WDSECTION Engine Compartment Harness Routing - Right Side of the Engine Compartment
Engine Compartment Harness Routing - Right Side of the Engine Compartment
| Harness Name | Callout |
|---|---|
| X100 Front Fascia Harness to Body Harness X100 Front Fascia Harness to Body Harness (UD5/UFQ) | 1 |
| X101 Body Harness to Forward Lamp Harness X101 Body Harness to Forward Lamp Harness | 2 |
RENDER: 1.0x
NO RELATED
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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.