AI Damage2026 Polestar Polestar 4 reliability: common problems
Owners of the 2026 Polestar Polestar 4 filed 3 complaints with NHTSA, most often about forward collision avoidance and backover prevention. The maker issued 29 service bulletins for this year. Details by component below, with sources.
Key figures
- Owner complaints
- 3
- Technical service bulletins (TSB)
- 29
What fails most often
- 1 Forward collision avoidance 67% of all complaints
- 2 Backover prevention 33% of all complaints
- 3 Exterior lighting 33% of all complaints
- 4 Service brakes 33% of all complaints
- Forward collision avoidance: 2 complaints (67% of all).
- Backover prevention: 1 complaints (33% of all); manufacturer bulletins for this component: 3.
- Exterior lighting: 1 complaints (33% of all).
- Service brakes: 1 complaints (33% of all).
Symptoms owners describe
How many of the 3 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Forward collision avoidance | 2 | 0 | 0 |
| Backover prevention | 1 | 0 | 3 |
| Exterior lighting | 1 | 0 | 0 |
| Service brakes | 1 | 0 | 0 |
| Electrical system | 0 | 0 | 2 |
| Structure | 0 | 0 | 2 |
| Suspension | 0 | 0 | 1 |
| Other | 0 | 0 | 21 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Almost immediately I noticed dim headlights and lack of proper beam projection at night. I brought this to the attention of dealer however, issue was dismissed as I was told " there is nothing that can be done. Headlights cannot be adjusted".
Intermittent false object detection from a front parking sensor. The instrument display shows a red warning bar indicating an object directly in front of the vehicle, accompanied by continuous audible beeping, when no object is present.
I recently purchased this vehicle at McDonalds Polestar Denver. This vehicle is currently experiencing un-commanded, sudden emergency braking while reversing. The Rear Auto Brake (RAB) system frequently triggers a false positive, causing the vehicle to slam on its brakes violently as if hitting an "invisible wall"…
Comparison
By complaint count this model year ranks 15,523 of 32,257 model years in the NHTSA data (top 48% most complained about).
On average one model year of the Polestar 4 has 2 complaints (2 years in the data). This year has 3, above average.
What to check before buying
- Forward collision avoidance. Radar and camera: calibration after bumper or windshield replacement.
- Backover prevention. Rear camera and parking sensors after a rear impact.
- Exterior lighting. Headlamps, leveling, sensors and mounts after a frontal hit.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- This is a TJ - Text only no attachments - If the software download to the latest baseline fails due to the…
This is a TJ - Text only no attachments - If the software download to the latest baseline fails due to the WAM, Do not perform any fault tracing or replace any parts prior to following the instructions provided under…
- This is a TJ - text only - no attachments - If the vehicle cannot engage any gear, and both DTCs P0AA800…
This is a TJ - text only - no attachments - If the vehicle cannot engage any gear, and both DTCs P0AA800 and P127900are present, Confirm that all criteria specified in the "Description" section are fulfilled. follow…
- This is a TJ - Text Only - No attachments - If the software version displayed in the CSD is not aligned…
This is a TJ - Text Only - No attachments - If the software version displayed in the CSD is not aligned with the actual software version installed in the vehicle (this may occur after a failed software download), and…
- This is a TJ - Text plus 1 Instruction AttachmentTJI-537279-2_1_3.pdf and 1 .mov- If a customer complains…
This is a TJ - Text plus 1 Instruction AttachmentTJI-537279-2_1_3.pdf and 1 .mov- If a customer complains on a grinding noise from SWM area when using the indicator lever, follow advice under Service. If the noise is…
- This is a TJ, Text plus 1 attachment - If customer complains that there is a visible molding line on the…
This is a TJ, Text plus 1 attachment - If customer complains that there is a visible molding line on the rear roof cover, follow advice under "Service". See attachment. lease, do not replace any parts for the symptom…
- The concern with stabilizer is low torque on the bolts for the stabilizer bar link
This may cause noise from the front suspension. Polestar has decided that all cars, concerned by this QB, shall be modified in accordance with this QB, at first workshop visi
- This is a TJ Text plus 1 .jpg - Before replacing any parts, follow the instructions below. 1
Follow VIDA instructions on how to dismantle the tailgate lamp (VCC-527817-1). 2. Check the wiring. If the cable is damaged or the tailgate switch batch number is earlier than 250808 (see reference TJ37247_1.jpg)…
- This is a TJ Text - plus 1 attachment a .png file - If the tailgate is hard to open with the switch button…
This is a TJ Text - plus 1 attachment a .png file - If the tailgate is hard to open with the switch button from outside, follow advise under Service. 1.Follow VIDA instructions on how to dismantle the tailgate…
- This is a TJ - Text only - No attachment - If there are any issues with downloading WAM (Wide-Angle Vision…
This is a TJ - Text only - No attachment - If there are any issues with downloading WAM (Wide-Angle Vision Module) during software download, Please follow the advice under “Service”
- This is a TJ - Text plus 1 PDF attachment TJI-533465-1_1_4 If a customer complains on a creaking /…
This is a TJ - Text plus 1 PDF attachment TJI-533465-1_1_4 If a customer complains on a creaking / ticking noise from steering wheel module (SWM) area when turning the steering wheel, follow advice under Service…
- This is a TJ - Text Only - No attachment - If customer complains of vibration through steering in low…
This is a TJ - Text Only - No attachment - If customer complains of vibration through steering in low speed follow advice under "Service".
- This is a TJ - text only no attachment - If the customer experiences unexpected dust accumulation inside…
This is a TJ - text only no attachment - If the customer experiences unexpected dust accumulation inside the rear door, see information under service. When the door is opened, the lower pressure inside the cabin causes…
NHTSA lists 29 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2026 Polestar Polestar 4?
Owner complaints to NHTSA most often mention: forward collision avoidance, backover prevention, exterior lighting. Total complaints: 3. The most frequent symptoms in complaint texts: headlights and tail lights (33%), warning lights, check engine (33%).
How many service bulletins (TSB) were issued for the 2026 Polestar Polestar 4?
NHTSA lists 29 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2026 Polestar Polestar 4 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2026 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.