The most common causes of P1E08 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.

Recommended steps to address P1E08: (1) Schedule service as soon as possible (2) Reduce driving speed and avoid long trips (3) Monitor for additional warning messages (4) Have the vehicle diagnosed by a certified technician. Always consult a qualified EV technician for high-voltage system repairs.

Is it safe to drive with P1E08?

Driving with P1E08 is not recommended for extended distances. Schedule service within a few days to prevent further damage. Monitor for any additional warning lights.

P1E08

Warning

Propulsion Power Management System Fault

Severity

Warning

What does P1E08 mean?

Fault code P1E08 means "Propulsion Power Management System Fault". 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 "warning". 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 Schedule service as soon as possible
2 Reduce driving speed and avoid long trips
3 Monitor for additional warning messages
4 Have the vehicle diagnosed by a certified technician