How to get rid of the car with lock symbol - 2009 Hummer H3

The yellow car and lock symbol that appears on the dashboard of your Pontiac G6 indicates that the vehicle's security system has detected a problem. This symbol may appear if there is a malfunction with the system or if the system has been triggered by an event such as a collision or attempted break-in.
If the security system is functioning properly and the yellow car and lock symbol is still displayed, it is possible that there is a problem with the security system sensor or wiring. It is recommended to take the vehicle to a mechanic or a Pontiac dealership for further diagnosis and repair.
In the meantime, you can try pressing the unlock button on the remote or using the key to unlock the doors and see if the symbol disappears. If the symbol remains displayed, it is possible that the security system will need to be reset by a professional.

The lock and car symbol and warning light you are seeing is saying that the anti-theft system has been activated.

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A possible dashboard symbol:

https://www.directline.com/car-cover/understanding-car-dashboard-warning-lights

"Brake system light. The first thing to do if you see this symbol glowing on the dashboard is check the handbrake hasn't been left on. ... That could relate to the worn condition of the brake pads or discs, a lack of fluid in the system or a problem with the anti-lock brakes (ABS) or stability control (ESP)."

Make, model and year of automobile.

Color of dashboard symbol or icon, and is it flashing?

This would indicate the security system is activated! Could be the key fob immobiliser, try the spare key!

Turn all the lights on and walk around thd car when you find thd one replace it the warning lamp will go out automatically if all is well. Regards Jim...

WIll not shift into reverse, or will not shift out of drive? Sounds like security issue.

this is a symbol for your TIRE PRESSURE MONOTORING SYSTEM(TPMS). Your owners manual or a dealer can explain how this system works and what to do to get rid of that light.

This symbol is usually your security light it flashes when the vehicle is locked. It comes on solid and goes out after it recognizes the key. And it flashes fast when it thinks it's an invalid key

try leaving the kee on for 20 minute or untill the light stop flashing or go away good luck pierre