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Supra Owner's Manual4-1. DRIVING HINTS
Noise, for example caused by 
the radiator fan running, even 
some minutes after stopping the 
engine.
It is normal for the radiator fan to 
keep running for several minutes, 
even after short trips.
Various driver profiles ensure that 
the exhaust gas particle filter is 
self-cleaning. If, in addition to the 
self-cleaning function, the exhaust 
gas particle filter needs to be 
actively cleaned while driving, a 
vehicle message is displayed.
Proceed as follows the next time 
you drive outside of built-up areas 
for around 30 minutes:
Deactivate Cruise Control sys-
tems.
Take your foot off the accelerator 
repeatedly and allow the vehicle 
to roll in overrun mode, see page 
273.
If possible, drive at alternating 
speeds.Cleaning the exhaust gas 
particle filter while drivingRadio signals
WARNING
Certain vehicle functions may be 
affected by interference from high-fre-
quency radio signals. Such signals 
originate from various transmitter sys-
tems, for example, from air traffic bea-
cons or relay stations for mobile 
telecommunications.
We recommend you consult any 
authorized Toyota retailer or Toyota 
authorized repairer, or any reliable 
repairer should you experience any 
difficulties in this regard.
Mobile communication in the 
vehicle
WARNING
There is a possibility of reciprocal 
interference between the vehicle elec-
tronics and mobile radio devices. 
Radiation is generated when mobile 
radio devices are transmitting. There 
is a danger of injury or damage to 
property. If possible, only use mobile 
radio devices, for example mobile 
telephones, in the interior if they are 
connected directly to an external 
antenna in order to eliminate recipro-
cal interference and to dissipate the 
radiation from vehicle's interior.