How to Replace the Key Fob Battery in a Volvo V50

1. Place the remote key with the keypad downward and pry open the cover with a small slotted screwdriver.
2. Remove the cover.
3. Note how the + and – sides of the battery are positioned on the inside of the cover.
4. Pry out the old battery and put in the new one, without touching the battery or its contact surfaces with your fingers.
5. Press the cover back into place.

• A weak battery shows the Information symbol and KEY BATTERY LOW VOLTAGE in the information display.
• Avoid touching the electrical circuitry in the other half of the remote key.
• Dispose of the old battery at a recycling center or through a qualified Volvo service technician.

Source: 2011 Volvo V50 owner's manual, PDF page 124. Steps are summarized in our own words (AI-assisted, checked against the cited pages 2026-10-18). Other model years can differ; your manual has the final word.