2007 Lexus P0455: What It Means & Is It Safe to Drive?
P0455 on the 2007 Lexus: Evaporative Emission System Leak Detected (Large Leak). Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
PowertrainMedium urgency
What this code means
A large leak has been detected in the EVAP system. Could be gas cap left off, disconnected hose, or damaged canister.
Common causes on the 2007 Lexus
- Gas cap missing or not sealed
- Disconnected or ruptured EVAP hose
- Damaged charcoal canister
- Faulty purge/vent solenoid
Symptoms
- Check Engine Light
- Fuel smell possible
Typical fixes
- Install or replace gas cap
- Inspect and repair EVAP hoses
- Replace canister or valves as needed
Repair cost range
For a 2007 Lexus, repairs for P0455 typically fall between $20 and $500, depending on the root cause and labor rates in your area.
Known issues on Lexus
Lexus P0455 follows the Toyota pattern—gas cap first, then charcoal canister hoses. The EVAP vent valve near the charcoal canister is a known failure on IS and GS models. A smoke test locates the leak quickly on Lexus systems.
Most commonly affected models
IS250/IS350 2006–2013GS350 2006–2011RX350 2007–2015