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.
2021 GMC Yukon AT4FACTORY OEM SERVICE PROCEDURE
Pre-Collision Module: Remove & Replace
WARNING: This page is about the Yukon Denali, 3.0L Eng VIN T, 4WD, which is a different variant/trim than selected.
| Applies To | Note | Standard Hours | Warranty Hours | Skill Level |
|---|---|---|---|---|
| Brake System Control Module (BSCM) | Includes: Programming. Includes: R&I Fender Liner. | 1.8 | 1.3 | B |
| Front View Camera | Includes: Programming. Includes: Calibration. | 0.9 | 0.4 | B |
| Image Processing Module,w/3rd Row Seat | Includes: Programming. Includes: R&I Seat. Includes: R&I Quarter Trim. | 3.3 | 1.1 | B |
| Image Processing Module,w/o 3rd Row Seat | Includes: Programming. Includes: R&I Quarter Trim. | 2.9 | 1.1 | B |
| Parking Assist Control Module,w/3rd Row Seat | Includes: Programming. Includes: R&I Seat. | 2.9 | 1.3 | B |
| Parking Assist Control Module,w/o 3rd Row Seat | Includes: Programming. | 2.5 | 1.3 | B |
Factory Service Tools
Use the Manual With the Right Hardware
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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.