Insert the key into the driver's side door lock and turn it to unlock the door. In some vehicles, this action can disarm the anti-theft system and allow you to start the car. Start the Car with the Key: Some vehicles have a system that recognizes the key's chip or transponder.
Resetting the anti-theft system and the car's computer system requires disconnecting the battery connections for 5 to 10 minutes. While this may assist to resolve issues with your anti-theft system, it is not guaranteed to work if there are additional concerns.
The Interior Movement Sensor monitors the interior of the vehicle with ultrasonic waves. If it senses movement or unauthorized entry, it can activate the vehicle alarm, which will trigger the horn, siren and vehicle lights as well as the Surround Vision Recorder, if equipped.
First, check the battery of your key fob to ensure it's not dead or low on power. If needed, replace the battery and attempt to start the car again. Another option is to lock and unlock the doors using the key fob multiple times, as this can sometimes reset the anti-theft system and allow you to start the vehicle.
You'll know that it's your anti-theft system causing this issue if you spot the anti-theft light appearing on your car's dashboard. The symbol looks like a lock or a key, and the light is usually red. This indicates that your anti-theft system has been activated and isn't going to allow your car to start.
The anti-theft fuse is typically in the fuse box on the driver's side. Depending on the vehicle's specifications, the anti-theft fuse can also be found under the hood and behind the air filter. You can use a fuse puller or a pair of pliers to disable the alarm.
Some Security Systems for Cars Will Drain the Battery
This is particularly true of alarms that have an “on” mode when the vehicle is stationary and turned off. The wiring to the alarm on these systems goes directly to the battery, and they will slowly take away energy from the battery.
Insert ignition key and turn to the “ON” position. Do not attempt to start the engine. Leave the key in the “ON” position for approximately 11 minutes. The security light will be steady on or flashing for the 11-minute period.
The PassLock system was designed to prevent vehicle theft by disabling fuel to the engine if attempts are made to start the vehicle without the correct bitted key.
To reset your car's computer, you should disconnect the battery and allow time for the residual energy in the electrical circuits to dissipate completely. Typically, this process can take anywhere from 15 minutes to an hour.
The security light flashes when the key is removed from the ignition. This means that the anti-theft system is active. The system prevents the engine from starting if someone tries to steal the car.
insert the key into the ignition, turn it to the "on" position, and wait for the anti-theft system to deactivate, which may take a few minutes.
Interior Movement Sensor: Monitoring the interior of your vehicle with ultrasonic waves, the Interior Movement Sensor detects unauthorized movement or entry. If it senses such activity, it triggers the vehicle's alarm system to deter potential break-ins.
Navigate to the GMC IntelliLink home screen and click on 'Settings'. Select 'Return to Factory Settings'. Three options will appear: Restore Vehicle Settings, Clear All Private Data, or Restore Radio Settings. For this purpose, select 'Restore Vehicle Settings'.
Reset the anti-theft system: Give the car a shot of hope by locking and unlocking it using the key fob. Sometimes, this simple action can magically reset the anti-theft system and allow you to start the car again.
If your vehicle has been damaged, during an attempted break-in or theft or otherwise, the anti-theft system might have been triggered. Check to see if the lock cylinder is damaged, and also check underneath the door handle – thieves have been known to use screwdrivers in an attempt to jimmy the door open.
To get your car out of anti-theft mode, try using the key fob by locking and unlocking the doors. If that doesn't work, insert the key into the ignition and turn it to the "on" position without starting the car, leaving it there for about 10-15 minutes to reset the system.
Manually reset the anti-theft system by turning your car on and off. Insert your key and hold it in the “off” position for 30 seconds. Then, turn the key to “on” and wait at least 10 minutes. Flip the position back to off for 30 seconds and repeat the cycle.
A kill switch is a device that's hidden inside your car that prevents it from starting. A kill switch adds another layer of security to help stop your car from being stolen and increase your car's security.
Failed Fuel Pump Relay
A small fuse from the fuse box controls this function. If you have trouble starting your vehicle and have these signs there might not be enough fuel drawn to the combustion chamber. Replace the fuel pump relay fuse or swap it with a different relay fuse and check if the engine turns this time.
Electrical issues such as a weak battery, a faulty alternator, or loose connections can cause the alarm to malfunction. If you're unable to identify and resolve the issue causing the alarm to keep going off, it's recommended to take your car to a mechanic further inspection and diagnosis.