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 MANUALSGMC2020SAVANA 3500 LS, VAN PASSENGER, 6.0L ENG VIN B, GAS/ETHANOLREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSREMOTE FUNCTIONS SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESSYMPTOMS - REMOTE FUNCTIONSNOTES
2020 GMC Savana 3500 LS, Van Passenger, 6.0L Eng VIN B, Gas/Ethanol
Symptoms - Remote Functions: Notes
2020 GMC Savana 3500 LS, Van Passenger, 6.0L Eng VIN B, Gas/EthanolSECTION Notes
NOTE:
The following steps must be completed before using the symptom tables.
- Perform Diagnostic System Check - Vehicle
before using the Symptom Tables in order to verify that all of the following are true:
- There are no DTCs set.
- The control modules can communicate via the serial data link.
- Review the system operation in order to familiarize yourself with the system functions. Refer to Keyless Entry System Description and Operation .
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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.