Uploaded April 2022 | Updated September 2026, 1 week ago
How to Replace the SIM card on a comma three:
1. With the comma three off and unplugged, tap/push the SIM card with a credit card or other narrow hard object to release the SIM (you will hear a click).
2. Gently pull the SIM card from the tray slot (try tweezers).
3. Push the SIM card into the SIM slot (with the gold-colored contacts facing downwards) with your fingernail or plastic card until you hear a click or reach resistance. If you’ve done this step correctly, the SIM card should stay completely recessed inside the comma three.
We recommend you clean the camera lenses with the included microfiber cloth before using the comma three again.
Purchase a SIM card for the comma three in the comma shop: comma.ai/shop/products/comma-prime-sim-card
How to Replace the SIM card on a comma three:
1. With the comma three off and unplugged, tap/push the SIM card with a credit card or other narrow hard object to release the SIM (you will hear a click).
2. Gently pull the SIM card from the tray slot (try tweezers).
3. Push the SIM card into the SIM slot (with the gold-colored contacts facing downwards) with your fingernail or plastic card until you hear a click or reach resistance. If you’ve done this step correctly, the SIM card should stay completely recessed inside the comma three.
We recommend you clean the camera lenses with the included microfiber cloth before using the comma three again.
Purchase a SIM card for the comma three in the comma shop: comma.ai/shop/products/comma-prime-sim-card
