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 MANUALSBUICK2019ENVISION BASEREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTINFOTAINMENTCELLULAR, ENTERTAINMENT, AND NAVIGATION SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESDTC B1024 (HUMAN MACHINE INTERFACE CONTROL MODULE)ACTION TAKEN WHEN THE DTC SETS
2019 Buick Envision Base
Action Taken When the DTC Sets
2019 Buick Envision BaseSECTION Action Taken When the DTC Sets
- The human machine interface control module sets the DTC.
- A message is displayed indicating that the system performance is being impacted by the excessive temperature condition.
- The module stops communicating on the MOST Bus network, but does not interrupt communication on the network.
- The infotainment system and the Info Display Module will have limited or no functionality.
- Components or other subsystems that interface with the infotainment system may have limited or no functionality.
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.