P0456 on Your 2024 Volvo XC60
A P0456 code on your 2024 Volvo XC60 indicates the ECM has found a very small leak (0.020-inch equivalent) in the EVAP system. On a new XC60 built on Volvo's SPA platform, this is typically minor and fully warranty-covered.
Likely Causes
- Gas cap not fully seated (33%) — Click firmly.
- Software calibration sensitivity (23%) — ECM updates may adjust thresholds.
- Factory EVAP connection variance (18%) — A fitting not fully engaged.
- Purge or vent valve irregularity (14%) — Slightly out of spec.
- New seal break-in (7%) — Fresh seals needing cycling.
- Transport artifact (5%) — Connection disturbed during delivery.
What to Do
- Check the gas cap — Remove, inspect, reinstall.
- Volvo dealer visit — Full warranty, zero cost. VIDA diagnostics.
- Software update and repair — Dealer handles everything.
Cost
- Under warranty: $0—covered through 2028 (basic) and 2032 (emissions)
- Gas cap (DIY): $15–$35
Warranty
Your 2024 XC60 carries Volvo's 4-year/50,000-mile warranty through 2028 and federal emissions coverage for 8 years/80,000 miles through 2032.