See also:

Automatic relocking
If the doors are unlocked, the locks will automatically reengage (re-lock) and the alarm will rearm after 2 minutes unless a door or the trunk has been opened. ...

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 ...

Engine oil
Engine oil must meet the minimum ILSAC specification GF-4, API SL, or ACEA A1/B1. Lower quality oils may not offer the same fuel economy, engine performance, or engine protection. Volvo recommend ...