What to know about the Trunk Lock Actuator:
The trunk or hatch on your vehicle is planned to store or transport your belongings securely. It is locked with a keyed lock cylinder, and if your vehicle is furnished with a power trunk release knob, there is a trunk lock actuator fixed to the keyed lock cylinder. When entry to the trunk is requested through electrical input, either by a trunk release button inside the car or by pressing the trunk release button on a key fob, the trunk lock actuator releases the trunk latch in the same way turning a key in the lock cylinder would. When the trunk lock actuator fails or is too weak to release the trunk latch, you may not be able to access your belongings in the trunk without using the key in the lock cylinder.
Facts to Note:
The trunk actuator can usually be triggered by button or remote control. If one doesn’t work, try the other to see if the problem is with the actuator or the control method.
If the power trunk lock actuator doesn’t work, a manual trunk lock cylinder can be used to access your belongings in the trunk.
In some vehicles, a valet switch in the glove box will turn off the power trunk release. If the trunk lock release doesn’t work, check to make sure the valet switch is not engaged.
A wiring problem or burnt fuse may mimic the symptoms of a failed trunk lock actuator. Have one of your expert mechanics check the system to determine the exact cause of failure.
How to Fix:
The trunk lock actuator is confirmed to be damaged
The inside trunk trim panel trunk is removed and the broken lock actuator is removed
The new trunk lock actuator is fixed
The trunk lock actuator is tested for proper operation and the inside trim panels are reinstalled
The trunk lid is opened and closed to check the latch and lock actuator operation
If the key still turns in the lock cylinder but the trunk will not open with either the trunk release switch inside the car or on your key fob, you may need to change the trunk lock actuator.
Common symptoms indicating you may need to change the Trunk Lock Actuator:
Power trunk release will not work but the manual trunk lock cylinder works
Power trunk lock button and remote key fob release buttons don’t work
Audible click at the trunk lock when the release button is pressed but the trunk doesn’t open
Importance of this service:
The trunk lock actuator is part of a convenient power trunk release system. If it doesn’t operate as designed, you’ll have to open the trunk through the manual key lock cylinder instead. You can change it at your convenience.