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.
Driver Seat Harness Routing (2 of 2)
2021 GMC Terrain SLT, 4WDSECTION Driver Seat Harness Routing (2 of 2)
Driver Seat Harness Routing (2 of 2)
| Harness Name | Callout |
|---|---|
| J351 Driver Sear Harness (KU1) | 1 |
| J356 Driver Sear Harness (KA1) | 2 |
| J354 Driver Sear Harness (KU1) | 3 |
| J355 Driver Sear Harness (KU1) | 4 |
| J353 Driver Sear Harness (A45 or A74) | 5 |
| J352 Driver Sear Harness | 6 |
| J358 Driver Sear Harness (KA1) | 7 |
| X310 Driver Seat Harness to Body Harness X310 Driver Seat Harness to Body Harness | 8 |
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.