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.
Door Lock System Components
2019 Chevrolet Trax Premier, AWDSECTION Door Lock System Components
WARNING: This page is about a different car, the 2018 Chevrolet Trax and 2018 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
The power door lock system consists of the following components:
- Driver door lock switch
- Passenger door lock switch
- Key cylinder switch
- Body control module (BCM)
- Driver door latch
- Passenger door latch
- Left rear door latch
- Right rear door latch
- Exterior door handle switches
- Keyless entry control module
| Callout | Component Name |
|---|---|
| WL | Wireless |
| S13D | S13D Door Lock Switch - Driver |
| S13P | S13P Door Lock Switch - Passenger |
| K9 | K9 Body Control Module |
| A23RR | A23RR Door Latch Assembly - Right Rear |
| A23LR | A23LR Door Latch Assembly - Left Rear |
| A23P | A23P Door Latch Assembly - Passenger |
| A23D | A23D Door Latch Assembly - Driver |
| K84 | K84 Keyless Entry Control Module |
| B27RR | B27RR Door Handle Switch - Right Rear Exterior |
| B27LR | B27LR Door Handle Switch - Left Rear Exterior |
| B27P | B27P Door Handle Switch - Passenger Exterior |
| B27D | B27D Door Handle Switch - Driver Exterior |
RENDER: 1.0x
NO RELATED
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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.