106/21 ENU
•

The functionality of Park Distance Control
(PDC) is optimized and sporadic system
failures that currently occur are corrected.

•

Traffic sign recognition at double the
time-dependent speed limits is further
improved.

•

A new charging cable with a cable length of
7.5 meter/ 24.6 ft can also be used in the
future

•

Calculation of the state of charge (SoC)
of the high-voltage battery is further
optimized. Incorrect calculation of the
state of charge is avoided

•

At-home charging is improved. Stability
during charging is improved and the timer
charging function is further optimized.

•

The calculation of the battery capacity is
optimized further

•

Home charging with third-party charging
equipment is improved. Discharge of the
12-volt vehicle electrical system battery
during charging is prevented.

•

The Charging Planner functions are
extended. For example, it is now possible
to set the charge level at which your
vehicle should reach the specified destination.

•

During a charging process with active
route guidance, the vehicle and the app
can also display the point at which the
charge level needed for the rest of the
route is reached and it is possible to
resume driving.

•

With the new function for charging while
preserving the battery, the charging power
can be reduced from up to 270 kW to 200
kW if desired. The resulting lower battery
temperature during charging further
increases battery life.

AfterSales

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9

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AMB5

ENU

Air conditioning

•

The functionality of the air conditioning is
optimized: Temperature settings in the
rear air-conditioning control panel thus
remain constant and sporadic failures of
the air conditioning are corrected

Chassis and driving
comfort

•

Starting comfort is further optimized

•

Possible chassis noises from the front axle
area are reduced

•

The lift function is improved. The set
vehicle height is not lost after a restart

•

With the new Smart Lift function, the
Taycan can be programmed to lift automatically at certain points, such as speed
bumps or garage driveways.

•

Further optimization of the suspension
system application improves driving
dynamics and race-track performance.

•

Software optimizations improve the
functionality of the Porsche Stability
Management (PSM) when driving downhill
or during stop-and-go driving

•

Any personalized settings are retained,
even after a bus idle and account change.

•

Seat and ergonomic positions will now be
stored even when using a guest profile and
will available again after a restart.

•

Various software optimizations prevent
the sporadic, short-lived display of various
messages and thus improve the driving
experience

•

The starting behavior and performance
of the instrument cluster are further
improved.

•

Sporadic loading spinners and resets are
avoided.

Digital cockpit
display (instrument
cluster)

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Technical Information

106/21

AfterSales

Service

Technical Information
Seat adjustment

106/21 ENU
•

On vehicles in non-Connect markets,
the chosen seat memory settings of the
driver's seat will now also be preserved
after the driving readiness is complete

•

In future, when using a guest profile, seat
and ergonomic positions will be stored and
will not be lost after a restart.

AMB5

9

Additional instructions if programming is aborted
Information
If individual programming steps or subsequent work could not be carried out correctly, see Workshop
Manual for the basic procedure for control unit programming using the PIWIS Tester  Workshop Manual
'9X00IN Basic instructions and procedure for control unit programming using the PIWIS Tester - section
on "Fault finding"'. :
You will also find further information and instructions specifically for the VR12.1.1 update in the table
below:
Situation:

SiriusXM is not available as a source in the PCM. The option for SiriusXM is greyed out. The user interface
within the PCM screen does not allow the PCM to confirm SiriusXM service is available, presenting a
“deadlock” condition.

Action required: 1. Press the Joker-key (‘♦’ button) on the steering wheel. This will allow you to assign a function to the
Joker-key. A popup should appear on the PCM center display.
2. Press the button labeled “change button assignment.”
3. Choose “steering wheel button.”
4. Choose “change source.”
5. Go to Media on the PCM screen.
6. Change the source to SiriusXM via the Joker-key on steering wheel. Confirm the source is available and
no longer greyed out.

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Work
Procedure:

ENU

Technical Information

106/21

Control unit:

Situation:

Action required:

Control unit for assistance
systems (zFAS):

Fault memory entry B170AF1
or B200FF3 after coding and
bus idle.

Perform Assistance systems
drive link.
•

•
•

Central computer (PCM):

The central computer freezes
while loading:

•

Start sequence 2 again
in order to program the
gateway control unit and
OTA control unit again. The
central computer (PCM)
then starts as usual.

Navigation data errors:

•

Re-program the navigation
database using a USB stick
 Technical Information
'915200 Complaint about
central computer: Some
navigation regions not
available following software
updates (138/21)'.

•

Check fault memory entries
for the control unit (cBox).
Deactivate flight
mode procedure. For
instructions, see: 
Workshop Manual '903525
Deactivating flight mode'

Fault memory entries
B126CF0 (000A02) or
B126CF1 (000A03)

Control unit for external
communication (cBox):

Emergency call system status
display lights up or flashes red:

•

Operational readiness cannot
be established (ignition not
active).

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Select the Assistance
systems control unit in the
overview.
Select the Drive
links/checks menu.
Select and start the Data
input, Step 2 drive link and
then follow the instructions
on the PIWIS Tester.

AfterSales

•
•

Disconnect 12-volt vehicle
electrical system battery
Remove and install back-up
battery for the cBox in order
to de-energize the control
unit. For instructions,
see:  Workshop Manual
'903525 Removing and
installing battery for

Service

Technical Information

106/21 ENU

•

•

AMB5

9

control unit for external
communication'
Operational readiness can
be established (ignition
on) after a short waiting
time and after you have
reconnected the 12-volt
vehicle electrical system
battery and the cBox
back-up battery. Continue
with the remedial action.
If operational readiness
cannot be established, the
control unit for external
communication (cBox)
must be replaced. For
instructions, see: 
Workshop Manual '912519
Removing and installing
control unit for external
communication (connection
box)'

Front corner radar control unit:

Fault memory entry after bus
idle due to incorrect calibration
of front corner radar.

Recalibrate front corner radars.
 Workshop Manual '916625
Calibrating front corner radar'

Component protection:

Component protection
activation has failed.

•
•

•

Fault memory entry for OTA
FC control unit Component
protection active

AfterSales

•

Start sequence 5 again.
If terminal 30 is aborted
again, perform a terminal
change. For instructions,
see:  Workshop Manual
'270619 Removing and
installing vehicle electrical
system battery'
After the terminal 30
change, start sequence
5 again and select
component protection for
assistance systems (zFAS).
Select the OTA FC control
unit in the control unit
overview and perform
automatic programming.

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Technical Information

106/21

Activation of component
protection for the control unit
for external communication
(connection box) has failed.

•

Then teach component
protection again.

•

Deactivate flight mode.
For procedure, see: 
Workshop Manual '903525
Deactivating flight mode'
Then, start sequence 5
again.

•
Activation of component
protection for assistance
systems (zFAS) has failed.

•

•
•

•
Parking brake (PSM):

Parking brake position lost after
coding.

Teach component
protection again. For
manual procedure, see: 
Workshop Manual '903555
Replacing gateway control
unit'. Select the control unit
for assistance systems
(zFAS) in the PIWIS Tester
procedure in order to teach
component protection
for the control unit for
assistance systems (zFAS).
Perform terminal 30
change.
Enable functions. For
instructions, see: 
Workshop Manual '903555
Replacing gateway control
unit'
Code all control units.

Read the information on the
instrument cluster and follow
the instructions on the central
display:
•
•
•

Press the brake pedal
completely.
Move selector lever to "N"
and wait 5 seconds.
After a waiting time of 5
seconds, apply the parking
brake.

If the "Brake" warning light in the
instrument cluster still comes
on, perform calibration again
and wait for longer.

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AfterSales

Service

Technical Information

106/21 ENU

AMB5

9

Important Notice: Technical Bulletins issued by Porsche Cars North America, Inc. are intended only for use by professional automotive technicians who have attended Porsche service training
courses. They are written to inform those technicians of conditions that may occur on some Porsche vehicles, or to provide information that could assist in the proper servicing of a vehicle. Porsche special
tools may be necessary in order to perform certain operations identified in these bulletins. Use of tools and procedures other than those Porsche recommends in these bulletins may be detrimental to the
safe operation of your vehicle, and may endanger the people working on it. Properly trained Porsche technicians have the equipment, tools, safety instructions, and know-how to do the job properly and
safely. Part numbers listed in these bulletins are for reference only. The work procedures updated electronically in the Porsche PIWIS diagnostic and testing device take precedence and, in the event of a
discrepancy, the work procedures in the PIWIS Tester are the ones that must be followed.

© 2021 Porsche Cars North America, Inc.

AfterSales

Nov 29, 2021
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