2015 Buick Verano BaseFACTORY OEM SERVICE PROCEDURE

Left HVAC Components

Left HVAC Components

Items
1: M4 Air Inlet Door Actuator (C67 or CJ2) M4 Air Inlet Door Actuator
2: B7H Air Temperature Sensor - Duct Left Upper (CJ2) B7H Air Temperature Sensor - Duct Left Upper
3: M37 Mode Door Actuator (C67 or CJ2) M37 Mode Door Actuator
4: B7D Air Temperature Sensor - Duct Left Lower (CJ2) B7D Air Temperature Sensor - Duct Left Lower
5: M6L Air Temperature Door Actuator - Left (C67 or CJ2) M6 Air Temperature Door Actuator (C67)
Fig 1: Left HVAC Components
GM3337938Courtesy of GENERAL MOTORS COMPANY
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.