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.
Temperature Control Lever
This lever controls the temperature of the air discharged from the heater system. When the temperature control lever is in the "COOL" position, the air mix door closes to block the flow of air to the heater core. When the temperature control lever is in the "HOT" position, the air mix door opens to allow air to pass through the heater core and heat the passenger compartment.
Placing the lever in an intermediate position will cause a lesser or greater amount of air to reach the heater core. In this mode, the passenger compartment temperature can be regulated.
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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.