See also:

Programming HomeLink
NOTE Some vehicles may require the ignition switch to be turned on or to the second (“accessories”) position for programming and/or operation of HomeLink. It is also recommended that a new batter ...

Accessory installation
• We strongly recommend that Volvo owners install only genuine, Volvo-approved accessories, and that accessory installations be performed only by a trained and qualified Volvo service technici ...

Battery
• Ensure that the battery cables are correctly connected and tightened. • Never disconnect the battery when the engine is running (e.g., when replacing the battery). • Never use a fast charger to ...