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 MANUALSCHEVROLET2018TAHOE FL, 4WD, GASREPAIR AND DIAGNOSISBODY & FRAMEWINDOWSFIXED AND MOVEABLE WINDOW SYSTEMDESCRIPTION AND OPERATIONPOWER WINDOWS DESCRIPTION AND OPERATIONPOWER WINDOWS SYSTEM COMPONENTS
2018 Chevrolet Tahoe FL, 4WD, Gas
Power Windows System Components
2018 Chevrolet Tahoe FL, 4WD, GasSECTION Power Windows System Components
The power window system consists of the following components:
- Driver window switch
- Passenger window switch
- Left rear window switch
- Right rear window switch
- Window motors in each of the doors
- 30A Fuse
- 5A Fuse
- 30A Fuse
- Body control module (BCM)
| Callout | Component Name |
|---|---|
| S79D | S79D Window Switch - Driver |
| M74D | M74D Window Motor - Driver |
| K9 | K9 Body Control Module |
| S79RR | S79RR Window Switch - Right Rear |
| S79LR | S79LR Window Switch - Left Rear |
| S79P | S79P Window Switch - Passenger |
| M74P | M74P Window Motor - Passenger |
| M74LR | M74LR Window Motor - Left Rear |
| M74RR | M74RR Window Motor - Right Rear |
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.