Charger shows E08 and the vehicle reports ‘Grounding Issue’ or refuses to charge at this location.

Safety first: Do not use the charger until the ground fault is resolved. An open ground can be life-threatening.

• Step 1 – Visual ground check: With power OFF, remove the charger cover and verify that the green or bare copper ground wire is securely attached to the ground terminal or bonding point.
• Step 2 – Inspect outdoor connections: For exterior installations, check for rust or corrosion on the ground lug and conduit fittings. Any severe corrosion should be cleaned or replaced by an electrician.
• Step 3 – Test outlet (portable units): Use a plug-in outlet tester with GFCI indication to verify correct wiring and ground presence on the receptacle used by a Chevrolet portable charger.
• Step 4 – Electrician verification: Have a licensed electrician test ground continuity from the panel to the charger using a multimeter or dedicated tester.
• Step 5 – Internal fault: If the external ground is confirmed good but E08 persists, the charger’s internal ground detection circuit on the main PCB may be defective and require replacement.