Porsche 911 Manual page 8

Same Driving Pleasure, More Safety
Pressure Monitoring (TPM) in the PCM" on
page 239.
e When a red tyre pressure warning appears on the
instrument cluster: stop immediately in a suit-
able place and check the tyres for damage. Do
not continue driving with damaged tyres. If nec-
essary, remedy the damage with tyre sealant.
> Please refer to chapter "Flat Tyre" on
page 110.
Checking the lights
If lights are faulty, your vehicle is in the dark and
hard to see in conditions of poor visibility. Other
drivers will see you too late and you could be in-
volved in an accident. The lights to check are:
– Parking light, dipped beam, driving lights, high
beam
– Direction indicators, brake lights, reversing lights
– Fog lights
e Check that all lights are working, and have de-
fective lights repaired immediately.
6
Checking aerodynamic components
Damaged or missing aerodynamic components (e.g.
spoilers or underbody panelling) impair vehicle
handling.
e Inspect your vehicle for signs of damage.
e Have damaged or missing components replaced
immediately.
Keeping windows and wiper blades clean and
in good working order
Dirty windscreens, windows and defective wiper
blades reduce visibility and dramatically increase the
risk of an accident.
e Keep the vehicle and windscreen/windows
clean.
e Thaw frozen wiper blades and free them from the
windscreen.
e Replace wiper blades regularly, or at the latest
when they leave streaks on the windscreen.
> Please refer to chapter "Windscreen Wipers"
on page 275.
Maintenance and modifications only by quali-
fied specialist workshops
Any modification to the vehicle can adversely affect
or even disable safety functions. Unauthorised work
performed during the warranty period may result in
claims being invalidated.
e Have all maintenance and all modifications to the
vehicle performed solely by a qualified specialist
workshop. This ensures that your vehicle remains
reliable and safe to drive, and that no conse-
quential damage occurs to your vehicle. Porsche
recommends a Porsche partner as they have
trained workshop personnel and the necessary
parts and tools.