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.

2014 Buick Verano BaseFACTORY OEM SERVICE PROCEDURE

Left HVAC Components

Items
1: M4 Air Inlet Door Actuator (C67 or CJ2)
2: B7H Air Temperature Sensor - Duct Left Upper (CJ2)
3: M37B Mode Door Actuator - Auxiliary (C67 or CJ2)
4: B7D Air Temperature Sensor - Duct Left Lower (CJ2)
5: M6B Air Temperature Door Actuator - Auxiliary (C67 or CJ2)

Fig 1: Left HVAC Components

Courtesy of GENERAL MOTORS COMPANY

Factory Service Tools

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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.