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 Chevrolet Suburban Z71FACTORY OEM SERVICE PROCEDURE
Fastener Specifications
NOTE:
Callouts in the following chart represent components shown in graphic above.
Low Frequency Console Antenna & Garage Door Opener Transmitter
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Theft Deterrent Module Bolt [2x] | - | - | 1.5 N.m (13 lb in) | Low Frequency Console Antenna Replacement (DCH) Low Frequency Console Antenna Replacement (D07) |
| 2 | Garage Door Opener Transmitter Bolt [2x] | - | - | 1.5 N.m (13 lb in) | Garage Door Opener Transmitter Replacement |
NOTE:
Callouts in the following chart represent components shown in graphic above.
Low Frequency Instrument Panel Antenna
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Low Frequency Instrument Panel Antenna [2x] | - | - | 2.5 N.m (22 lb in) | Low Frequency Instrument Panel Antenna Replacement (9C1) |
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.