Operation, Safety
97
Porsche Communication 
Management (PCM) fRefer to the separate operating instructions 
before putting the PCM into operation.
f Please see the chapter “LOAD SWITCH-OFF 
AFTER 2 HOURS OR 7 DAYS” on Page 246.
 Warning!
There is a danger of accident if you set or 
operate the on-board computer, radio, navi-
gation system, telephone or other equipment 
when driving.
This could distract you from the traffic and 
cause you to lose control of the vehicle re-
sulting in serious personal injury or death.
f Operate the components while driving only if 
the traffic situation allows you to do so safely.
f Carry out any complicated operating or setting procedures only with the vehicle stationary.
The reception conditions for the radio module 
integrated in the PCM ch ange continuously as you 
drive. Interference from buildings, terrain and the 
weather is unavoidable.
FM stereo reception is particularly susceptible to 
varying reception conditions.
Electronic accessories should only be retrofitted 
by your authorized Porsche dealer. Accessories which have not been tested and 
approved by Porsche may impair radio function 
and reception.
NavigationWhen put into operation for the first time, a 
distance of approx. 30 miles (50 km) must be 
driven in order for the navigation system to 
complete the process of fine calibration.
The same applies when the tires are changed (e.g. 
summer/snow tires) or new tires fitted.
Full location accuracy is not yet achieved during 
the fine-calibration process.
If the vehicle has been transported (e.g. ferry, car 
train), the system may take a few minutes to deter-
mine the current locati
on after it has been 
switched on.
Serious tire slip (e.g. spinning wheels on snow) 
may result in temporaril y inaccurate navigation.
When the battery has been disconnected, it may 
take up to 15 minutes before the navigation 
system is operational again.
Car Audio Operation/Tips For radio operation see your radio manual 
which is included with your on-board litera-
ture.
f Please see the chapter “LOAD SWITCH-OFF AF-
TER 2 HOURS OR 7 DAYS” on Page 246.
FM reception 
A vehicle is not an ideal pl ace to listen to a radio. 
Because the vehicle moves, reception conditions 
are constantly changing. 
Buildings, terrain, signal distance and noise from 
other vehicles are all working against good recep-
tion. 
Some conditions affecting FM may appear to be 
problems when they are not. 
The following characteristics are completely nor-
mal for a given reception  area, and they do not in-
dicate any problem with the radio itself. 
Note
Electronic accessories shou ld only be installed by 
your authorized Porsche dealer.
Equipment which has not been tested and ap-
proved by Porsche may impair radio reception.  
154
Instruments, On-Board Computer, Warnings
System learningThe Tire Pressure Monitoring begins to “learn” the 
wheels after a wheel change, wheel transmitter 
replacement or update of the tire settings. During 
this process, the Tire Pressure Monitoring recog-
nizes the tires and their locations.
The on-board computer displayes the message 
“TPM is learning, monitoring not act.”.The Tire Pressure Monitoring requires a certain 
amount of time to learn the wheels. During this 
time, the current tire pressures are not available 
on the on-board-computer:
– The tire pressure warning light remains lit until 
all wheels have been learned.
– The display of the tire pressure function of the  on-board computer shows lines.
– The required pressures for cold tires at 68 °F  (20 °C) are indicated in the Info pressure 
display in the tire pressure menu.
Position and pressure information is displayed as 
soon as the Tire Pressure Monitoring has as-
signed the wheels identified as belonging to the 
vehicle to the correct wheel positions.
The wheel learning process takes place 
exclusively when the vehicle is being driven 
(vehicle speed above 25 km/h (16 mph)).
f Check the tire pressure for all wheels on the 
“Info pressure” display.
f Correct the tire pressure to the required 
pressure if necessary.
Changing a wheel and replacing tiresfNew wheels must be fitt ed with radio transmit-
ters for the Tire Pressure Monitoring. 
Before tires are changed, the battery charge 
state of the wheel transmitters should be 
checked at an authorized Porsche dealer.
f Switch the ignition off when changing a wheel.
The tire settings on the  on-board computer must 
be updated after changing a wheel.
If the tire settings are not updated, the message 
“Wheel change? Input new TPM settings!” is 
displayed on the on-board computer.
f Update the on-board computer settings when 
the vehicle is stationary the next time.