p0442
Moderate
Lexus · SUVs
Evaporative Emission Control System - Leak Detected (Small)
Quick Answer
Error code P0442 on your Lexus SUVs means: Evaporative Emission Control System - Leak Detected (Small). This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Inspect fuel cap first and replace if damaged
2
Check all EVAP system hoses for leaks
3
Examine fuel filler neck for cracks
4
Perform EVAP system smoke test
5
Verify all connections are secure
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
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