P0457
InfoEvaporative emissionsEVAP leak — cap loose
The fuel cap is loose (or aftermarket and a poor fit).
Common causes
- Loose / poor-quality cap
First thing to try:
Tighten the cap. Code should clear in 2-3 drive cycles.
Can I keep driving?
Yes. This one is informational — nothing here stops you driving normally. Get it read at your next service.
Who fixes P0457
This one falls under Fault code diagnosis. Verified specialists can read it live over a remote session, usually in a few minutes — you only pay if it works.
Related codes
These explanations are from a curated DTC knowledge base. Manufacturer-specific codes may need a specialist's hands-on read.