The most common causes of P0CCD include: Battery management system (BMS) malfunction; High voltage battery cell imbalance; Battery temperature sensor fault; High voltage contactor failure. A professional OBD-II scan tool is recommended for accurate diagnosis.

How do I fix P0CCD for Chevrolet / GM Lyriq?

Recommended steps to address P0CCD: (1) Stop driving immediately and park in a safe location (2) Do not attempt to restart the vehicle (3) Contact roadside assistance or authorized dealer (4) Have the vehicle towed to an authorized service center. Always consult a qualified EV technician for high-voltage system repairs.

Is it safe to drive with P0CCD?

No. P0CCD is a critical fault code indicating an immediate safety risk. Stop driving as soon as safely possible and contact roadside assistance or an authorized service center.

Chevrolet / GM Lyriq

P0CCD

Critical

High Voltage Battery Pack Cell Voltage Imbalance

Severity

Critical

What does P0CCD mean?

Fault code P0CCD means "High Voltage Battery Pack Cell Voltage Imbalance". This is a General Motors-specific EV diagnostic trouble code for the GM Ultium / BEV3 platform. It is classified as "battery" with a severity level of "critical". Applicable models: Chevrolet Equinox EV (2024+), Chevrolet Blazer EV (2024+), Honda Prologue (2024+), Cadillac Lyriq (2023+), Chevrolet Silverado EV (2024+).

Possible Causes

Battery management system (BMS) malfunction
High voltage battery cell imbalance
Battery temperature sensor fault
High voltage contactor failure

Recommended Actions

1 Stop driving immediately and park in a safe location
2 Do not attempt to restart the vehicle
3 Contact roadside assistance or authorized dealer
4 Have the vehicle towed to an authorized service center

This is a critical fault code. Pull over safely and seek immediate professional assistance.

This code applies to all vehicles. View generic P0CCD information →