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+--- Thread: Polestar TCM Tune Actually Enabled? (/showthread.php?tid=991)
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Polestar TCM Tune Actually Enabled? - csecrist13 - 08-21-2025
Hey guys just wanted to put some feelers out there. I bought a 22 xc90 and used orbit to enable the "Transmission Tune". I understand the awd split, engine, etc is all an actual software update. I had the chance to drive a Polestar Optimized xc90 at work that was traded. (Im a JLR tech). Unless I messed something up, orbit does not enable the trans tune. The shift patterns and holding times are completely different. It is notably faster at shifting and is almost a track only kinda tune. Has anyone else had this experience as well or just me?
RE: Polestar TCM Tune Actually Enabled? - leandro.vitali - 08-22-2025
Polestar Optimization may or may not be included in your CEM firmware version. Some users have activated it via Orbit and report good performance results (or a placebo effect). Most report no change in practice (as in my case).
RE: Polestar TCM Tune Actually Enabled? - x119 - 08-22-2025
(08-22-2025, 05:08 PM)leandro.vitali Wrote: Polestar Optimization may or may not be included in your CEM firmware version. Some users have activated it via Orbit and report good performance results (or a placebo effect). Most report no change in practice (as in my case).
Sorry, but these statements are wholly incorrect.
Polestar is a number of things; it’s an engine tune, a transmission configuration and a AWD configuration.
The transmission tune can be enabled on most, if not all vehicles. AWD flash is possible, but requires individual software. The engine tune isn’t available - you can only purchase via dealer.
So, OP, you’ll be getting 1/3 on your vehicle - if it’s set correctly. What did you modify?
RE: Polestar TCM Tune Actually Enabled? - kistigun - 08-23-2025
How do you flash the awd?
RE: Polestar TCM Tune Actually Enabled? - Kuikka123 - 08-23-2025
Is it possible the polestar config alone changes the AWD ratio on a T8? have a 2020 V90 T8 currently on “polestar engineered edition” option. In hybrid mode the power meter/electric power ratio is completely different compared to stock. Accelerating on electric only used to be a challenge, any real electric power was right on the switch point where ICE starts. On the polestar config electric power delivery it’s much more linear and i can easily accelerate without ever starting the ICE by accident. I guess this is “the pedal map” change but on a T8 it seems to be more than just a pedal/power ratio.
RE: Polestar TCM Tune Actually Enabled? - x119 - 08-24-2025
Potentially for the ERAD based vehicles there isn't a flash required, it might simply feed off the CEM configuration.
For the AWD models D/T then you can get a hold of the software file for the DEM and flash it manually - but this isn't something offered by OrBit.
Edit to clarify: OrBit can flash files, that's no issue. It's the procurement of said files
RE: Polestar TCM Tune Actually Enabled? - csecrist13 - 09-02-2025
(08-22-2025, 09:49 PM)x119 Wrote:(08-22-2025, 05:08 PM)leandro.vitali Wrote: Polestar Optimization may or may not be included in your CEM firmware version. Some users have activated it via Orbit and report good performance results (or a placebo effect). Most report no change in practice (as in my case).
Sorry, but these statements are wholly incorrect.
Polestar is a number of things; it’s an engine tune, a transmission configuration and a AWD configuration.
The transmission tune can be enabled on most, if not all vehicles. AWD flash is possible, but requires individual software. The engine tune isn’t available - you can only purchase via dealer.
So, OP, you’ll be getting 1/3 on your vehicle - if it’s set correctly. What did you modify?
374 POLESTAR LEVEL -- 02
I also followed another thread about enabling the remote start from fob so some special vehicle settings are done but i did that after the polestar switch and didnt effect anything.
RE: Polestar TCM Tune Actually Enabled? - Kushtrim - 09-13-2025
Which polestar option is best for xc60 2018 t8 rdesign?
RE: Polestar TCM Tune Actually Enabled? - jos - 12-01-2025
(09-02-2025, 07:08 PM)csecrist13 Wrote:(08-22-2025, 09:49 PM)x119 Wrote:(08-22-2025, 05:08 PM)leandro.vitali Wrote: Polestar Optimization may or may not be included in your CEM firmware version. Some users have activated it via Orbit and report good performance results (or a placebo effect). Most report no change in practice (as in my case).
Sorry, but these statements are wholly incorrect.
Polestar is a number of things; it’s an engine tune, a transmission configuration and a AWD configuration.
The transmission tune can be enabled on most, if not all vehicles. AWD flash is possible, but requires individual software. The engine tune isn’t available - you can only purchase via dealer.
So, OP, you’ll be getting 1/3 on your vehicle - if it’s set correctly. What did you modify?
374 POLESTAR LEVEL -- 02
I also followed another thread about enabling the remote start from fob so some special vehicle settings are done but i did that after the polestar switch and didnt effect anything.
will this transmission tune contain the "no gear change in curve"?
there are some specific situation where you brake in front of a curve and if you gently step on the gas in the curve again it can happen that the car shifts done, i read that part of the polestar tune is that it will not shit in curves anymore.
RE: Polestar TCM Tune Actually Enabled? - x119 - 12-02-2025
Answer: probably.