What to Do When Volvo Car Doors Won't Lock?
2 Answers
If you're using the remote key to lock the door and it's not working, it might be due to a malfunctioning remote lock or an aging remote transmitter antenna. In such cases, you can use the spare mechanical key. Since smart keys use low-intensity radio waves, they may not function properly under magnetic interference. Simply moving the car to a different parking spot can resolve this issue. Some criminals use a radio signal jammer that emits electromagnetic waves at the same frequency as the car's locking signal, thereby blocking the electronic code of the car's central locking system.
My Volvo XC90’s doors wouldn’t lock properly a while back, which scared me into immediately checking the remote key’s battery—turns out it was dead. After replacing the coin cell, the issue was resolved. However, I also noticed the vehicle’s electronic systems can sometimes be affected by nearby signal interference, like when parked near a large mall, where signal conflicts may prevent locking. It’s wise to keep a spare key handy and replace the battery regularly—don’t be lazy like I was. If the problem persists, check the fuse box; Volvo’s designs are elegant but fuses can blow easily. Locate the relevant circuit and test it with a multimeter to identify the issue. If all else fails, contact professional repair services—never force the doors open or shut to avoid damaging the locking mechanism. These minor issues are common as cars age.
