Keyless Entry Control Module

2025 Chevrolet Trailblazer ACTIV, 4WDSECTION Keyless Entry Control Module

The keyless entry control module is responsible for activating the low frequency antenna when the ignition mode switch is pressed. The antennas emit a challenge to the keyless entry transmitter. The transmitter receives this challenge and emits it's response as an RF message.

RENDER: 1.0x

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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.