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 MANUALSGMC2013SIERRA DENALI AWD V8-6.2LREPAIR AND DIAGNOSISLOCATIONSCOMPONENT LOCATIONSINFRARED TRANSMITTER (U42)
2013 GMC Sierra Denali AWD V8-6.2L
Infrared Transmitter (U42)
2013 GMC Sierra Denali AWD V8-6.2LSECTION Infrared Transmitter (U42)
Passenger Compartment/Roof Component Views
Overhead Console and Headliner Components (U42/5Y0)
1 - Roof Beacon Switch (5Y0)
2 - Video Display (U42)
3 - Infrared Transmitter (U42)
4 - Blunt Cut - Emergency Vehicle Provision (5Y0)
5 - Emergency Vehicle Roof Lamp Relay (5Y0)
RENDER: 1.0x
NO RELATED
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Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.