CP_a004
Low Severity
Tesla CP_a004 — Charge Port Door Open
Charge Port System (CP) alert — plain English explanation and what to do next
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System
Charge Port System (CP)
Severity
Low Severity
Dealer visit
Not required
Affects models
All Models
What CP_a004 means
CP_a004 means Tesla detected the charge port door is open or thinks it is. This is usually a minor issue — the door may not have fully latched or a sensor is misreading. One of the most common and least serious Tesla alerts.
What to do
✓ Almost always a quick fix. Check the charge port door physically before anything else.
1
Check charge port physically — Look at the door. It may simply not have closed after your last charge.
2
Close firmly — Press until you hear or feel a click.
3
Check for debris — Look for dirt ice or debris preventing full closure.
4
Reboot if alert persists — Soft reboot by holding both scroll wheels 10 seconds.
Related Tesla error codes
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