2012 GMC Terrain AWD L4-2.4LFACTORY OEM SERVICE PROCEDURE

Keyless Entry Receiver: Locations




Passenger Compartment/Roof Component Views

Headliner Components

Factory service manual diagram




1 - E37R Dome/Reading Lamps - Rear

2 - B77R Radio Volume Compensator Interior Noise Microphone - Rear (VQN)

3 - M69 Sunroof Motor (CF5)

4 - E37M Dome/Reading Lamps - Middle

5 - E37EL Dome/Reading Lamps - Front Overhead Console Left

6 - S12 Dome Lamp Switch

7 - B24 Cellular Phone Microphone (UE1)

8 - S72 Sunroof Switch (CF5)

9 - S45B Liftgate Control Switch - Interior (TB5)

10 - S88 Sunroof Tilt Switch (CF5)

11 - S17RF Dome/Reading Lamps Switch - Front Overhead Console Right

12 - S17LF Dome/Reading Lamps Switch - Front Overhead Console Left

13 - E37ER Dome/Reading Lamps - Front Overhead Console Right

14 - E1L Accent Lamp - Overhead Console (LT, LTZ, SLE2, or SLT)

15 - P14 Passenger Air Bag Disable Indicator

16 - A3R Sunshade - Right

17 - K77 Remote Control Door Lock Receiver

18 - A10 Inside Rearview Mirror

19 - P7 Display (UVC without UYS or PCJ)

20 - A3L Sunshade - Left

21 - B77F Radio Volume Compensator Interior Noise Microphone - Front (VQN)

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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.