How to Replace the Key Fob Battery in a Volvo XC70

1. Slide the spring loaded catch to the side.
2. Pull the key blade straight out of the remote key.
3. Pry up the cover carefully with a small screwdriver in the hole behind the catch, holding the buttons upward.
4. Pry out the old battery with a screwdriver and insert the new CR 2430, 3V battery with the (+) side downward.
5. Press the cover into place, then slide the key blade into its groove.
6. Gently press the key blade in the groove until it clicks into place.

• Avoid touching the battery's contact surfaces, as this can impair battery function.
• Replace the battery when Low battery in remote control. Please change batteries. appears or the locks do not react after several attempts.

Source: 2016 Volvo XC70 owner's manual, PDF pages 161, 162. 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.