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(888) 312-8812 Login SignupThe Peterbilt HVAC Control regulates temperature settings inside the sleeper cab compartments. It adjusts heating and cooling output through a dedicated control interface separate from the primary cab controls. Its dial mechanism allows drivers to fine-tune airflow and temperature levels during rest periods. Additionally, its responsive adjustment capability allows interior climate changes without overcompensating or cycling erratically. When sleeper climate settings begin reacting inconsistently, the Peterbilt Q21-1122 restores controlled temperature regulation inside the rear cabin space.
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