P0B26

Hybrid/EV Battery A Voltage High

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$167–556 (est.)

Symptoms

Check Engine light comes on
Hybrid system power reduction
The car goes into emergency mode
Reducing electric range
Unusual sounds from the battery compartment

Causes

Faulty battery modules
Problems with the charging system
Malfunction of voltage sensors
Damage to high voltage wiring
Malfunctions of the on-board computer

How to Fix

Carry out diagnostics of the high-voltage system
Check the condition of the battery and modules
Test voltage sensors
Inspect high-voltage wiring for damage
Update on-board computer software
Repair only from an authorized dealer

Related codes

P0B25 P0B27 P0B29