Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Unlocking the trunk lid/tailgate
Applicable to the S80/S60:
The lock unit in the trunk lid on the S80/S60 actually has no "unlocked" mode. The difference between locked and unlocked mode is whether or not the rear electronic module (REM) activates the lock unit when the switch in the trunk lid is pressed.
The trunk lid "locks" and "unlocks" during the normal unlocking procedure. The trunk lid can also be opened separately with a special button on the remote control. The trunk lid can also be opened independently of the central locking system with the key in the lock cylinder on the trunk lid. However, the alarm will be triggered if more than 26 seconds has elapsed since locking the central locking (applies to vehicles with alarm function).
The lock unit and switch on the trunk lid are directly connected to the rear electronic module (REM).
Applicable to the V70/XC70/XC90:
On the V70/XC70/XC90 the lock unit in the tailgate is unlocked during a normal unlocking procedure. The tailgate can also be unlocked separately with a button on the remote control. The tailgate can also be opened independently of the central locking system with the key in the lock cylinder on the tailgate. The lock cylinder is only on vehicles with a factory-fitted auxiliary rear facing seat. If the tailgate is opened with the key in the lock cylinder then the alarm will be triggered if more than 26 seconds has elapsed since locking the central locking (applies to vehicles with alarm function).
The lock unit on the tailgate is directly connected to the rear electronic module (REM).
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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.
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