- Vehicles
- Cars
Fault in the drive system
Polestar 'Fault in the drive system' in car: Drive Alert
Risk level
High
Professional inspection is recommended.
Urgency
Immediate
Quick answer
The 'Fault in the drive system' message in the instrument panel of a Polestar warns of an electric propulsion malfunction. Park in a safe place, read the message on the driver display, and contact Polestar Customer Support.
Safety first
Stop and check this first
- The vehicle's electrical system uses high-voltage current; damage to this system or the high-voltage battery may result in overheating, fire, or serious personal injury. Before inspection after a collision or flooding risk, park outdoors at a safe distance from buildings or flammable materials.
- Do not touch anything that is not clearly described in the owner's manual: high-voltage components and all orange cables may only be handled by qualified Polestar personnel.
Safe checks you can perform
- Read the exact message in the instrument panel
- Check whether the turtle symbol or 12 V battery warning is lit
- Assess whether the car experienced a collision or flooding risk
Leave these tasks to a qualified professional
- Do not attempt this professional task: Official diagnostic scan of the electric propulsion system and driveline
- Do not attempt this professional task: High-voltage insulation, orange cabling, and 12 V battery inspection
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Official diagnostic scan of the electric propulsion system and driveline
What they doA trained and qualified Polestar service technician reads the stored fault codes behind 'Fault in the drive system' or 'Temporary fault in driveline' and checks whether overheating or a propulsion fault triggered the turtle symbol.
They must show youthe diagnostic fault report for the electric drive system and the cause of any reduced performance.
In writingthe stored propulsion fault codes, driveline test results, and any software update or component replacement performed.
High-voltage insulation, orange cabling, and 12 V battery inspection
What they doAn authorized Polestar workshop inspects the high-voltage components, orange cables, high-voltage battery condition, and 12 V battery circuit under manufacturer safety procedures.
They must show youthe high-voltage and 12 V test results and the instrument panel returning to Ready status.
In writingthe insulation test readings, 12 V battery health verification, and confirmation that the drive system fault is cleared.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Read the exact message in the instrument panel
- Who:
- you, with the vehicle safely parked.
- How:
- check the driver display and note whether it reads 'Fault in the drive system' or 'Temporary fault in driveline'.
- Result that matters:
- distinguishing a drive system fault that requires Polestar Customer Support from a temporary driveline message.
- If 'Fault in the drive system' stays on screen:
- do not keep driving and contact Polestar Customer Support.
- If 'Remove charging cable before start' is shown:
- unplug the charging cable from the vehicle socket before starting.
- Evidence to keep:
- a clear photo of the instrument panel showing the symbol and exact message wording.
Evidence: Polestar 2 (2025) Owner's Manual: Electric propulsion symbols and messages in the instrument panel
Check whether the turtle symbol or 12 V battery warning is lit
- Who:
- you, looking at the instrument panel without opening any vehicle components.
- How:
- see whether the reduced-performance turtle icon or 'Fault in 12 V battery' appears alongside the propulsion message.
- Result that matters:
- identifying whether reduced performance coincides with a very low high-voltage battery charge level, system overheating, or a 12 V battery fault.
- If the turtle symbol is lit with reduced power:
- stop safely and contact Polestar Customer Support if the drive fault remains.
- If 'Fault in 12 V battery' is also shown:
- report both messages to Polestar Customer Support for workshop diagnosis.
- Evidence to keep:
- displayed battery state of charge and a list of all active instrument panel symbols.
Evidence: Polestar 2 (2025) Owner's Manual: Electric propulsion symbols and messages in the instrument panel
Assess whether the car experienced a collision or flooding risk
- Who:
- you, standing outside the car without touching any under-hood cables or parts.
- How:
- consider whether the vehicle was exposed to a collision, risk of flooding, or fire, and park outdoors at a safe distance from buildings or flammable materials before inspection.
- Result that matters:
- following Polestar's high-voltage safety precaution whenever the electrical system or high-voltage battery may be damaged.
- If the car was exposed to a collision, flooding risk, or fire:
- park outdoors away from structures and call Polestar Customer Support immediately.
- If no external incident occurred:
- leave all high-voltage parts untouched and wait for Polestar inspection.
- Evidence to keep:
- a note of any incident preceding the alert and where the vehicle is parked.
Evidence: Polestar 2 (2025) Owner's Manual: General information about electric propulsion
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Vehicles
- Brand
- Polestar
- Product type
- Cars
Known code variants
- Fallo en el sistema de propulsión
- Fallo en la batería de 12 V
- Fallo temporal en la línea de tracción
- Fault in 12 V battery
- Fault in the drive system
- Polestar turtle symbol reduced performance
- Remove charging cable before start
- Temporary fault in driveline
What it means
In the Polestar 2 (2025) owner's manual, the electric propulsion warning symbol can appear with 'Fault in the drive system', 'Temporary fault in driveline', or the turtle symbol indicating reduced performance when the high-voltage battery charge level is very low, the system overheats, or a drive fault limits output. Polestar instructs you to read the message in the instrument panel and contact Polestar Customer Support. The message alone never proves which electric motor, inverter, sensor, or battery module is faulty.
Warnings and stop conditions
- Highsource verified
The vehicle's electrical system uses high-voltage current; damage to this system or the high-voltage battery may result in overheating, fire, or serious personal injury. Before inspection after a collision or flooding risk, park outdoors at a safe distance from buildings or flammable materials.
Evidence: Polestar 2 (2025) Owner's Manual: General information about electric propulsion
- Highsource verified
Do not touch anything that is not clearly described in the owner's manual: high-voltage components and all orange cables may only be handled by qualified Polestar personnel.
Evidence: Polestar 2 (2025) Owner's Manual: General information about electric propulsion
Symptoms and causes
Probable causes · in order
- Fault in the electric drive systemCommon
The Polestar 2 manual links the 'Fault in the drive system' instrument panel alert to an electric propulsion malfunction that requires contacting Polestar Customer Support.
Evidence: Polestar 2 (2025) Owner's Manual: Electric propulsion symbols and messages in the instrument panel
- Temporary fault in the drivelinePossible
A transient driveline condition triggers the companion message 'Temporary fault in driveline' in the instrument panel.
Evidence: Polestar 2 (2025) Owner's Manual: Electric propulsion symbols and messages in the instrument panel
- System overheating or very low high-voltage battery charge levelPossible
The turtle symbol illuminates for reduced performance when the high-voltage battery's charge level is very low, in the event of system overheating, or during a fault in the electric drive system.
Evidence: Polestar 2 (2025) Owner's Manual: Electric propulsion symbols and messages in the instrument panel
- Fault in 12 V battery or charging cable still plugged in at startLess common
The same instrument panel table lists 'Fault in 12 V battery' and 'Remove charging cable before start' among the electric propulsion messages that prevent normal driving readiness.
Evidence: Polestar 2 (2025) Owner's Manual: Electric propulsion symbols and messages in the instrument panel
Virtual technician
Does Fault in the drive system still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
- 3
Polestar 2 (2025) Owner's Manual: General information about electric propulsion
Polestar · 2025 · manual
- 4
Polestar 2 (2025) Manual del propietario: Generalidades sobre la carga
Polestar · 2025 · manual
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