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CAUTION
●The TPMS is not a substitute for the
regular tire pressure check. Be sure to
check the tire pressure regularly.
●If the vehicle is being driven at speeds
of less than 16 MPH (25 km/h) , the
TPMS may not operate correctly.
●Be sure to install the specified size of
tires to the 4 wheels correctly.
NISSAN Intelligent Key™
warning light
The Intelligent Key warning light warns of a mal-
function with the electrical steering lock system
or the Intelligent Key system.
After the ignition switch is placed in the ON
position, this light comes on for about 2 seconds
and then turns off.
If the light comes on while the engine is stopped,
it may not be possible to free the steering lock or
to start the engine. If the light comes on while the
engine is running, you can drive the vehicle. How-
ever, in these cases, contact a NISSAN dealer for
repair as soon as possible.
See “NISSAN Intelligent Key™ ” in the “Pre-
driving checks and adjustments” section.
Seat belt warning light and
chime
The light and chime remind you to fasten your
seat belts. The light illuminates whenever the
ignition switch is placed in the ON or START
position and remains illuminated until the driver’s
seat belt is fastened. At the same time, the chime
sounds for about 6 seconds unless the driver’s
seat belt is securely fastened.
Instruments and controls2-13
REVIEW COPY—2009 Altima(alt)
Owners Manual—USA_English(nna)
09/08/08—debbie
Page 331 of 374

Wheel size Minimum space required
16 in .7 in (17 mm)
17 in .2 in (4 mm)
18 in .2 in (4 mm)
A tire chain that provides the specified amount of
space will provide the necessary clearance be-
tween the tire and the closest vehicle suspension
or body component. The minimum clearances are
determined using the factory-equipped tires.
Other types may damage your vehicle. Use chain
tensioners when recommended by the tire chain
manufacturer to ensure a tight fit. Loose end links
of the tire chain must be secured or removed to
prevent the possibility of whipping action dam-
age to the fenders or underbody. If possible,
avoid fully loading your vehicle when using tire
chains. In addition, drive at a reduced speed.
Otherwise, your vehicle may be damaged and/or
vehicle handling and performance may be ad-
versely affected.
Tire chains must be installed only on the
front wheels and not on the rear wheels.
Never install tire chains on a TEMPORARY USE
ONLY spare tire.
Do not use tire chains on dry roads. Driving with
tire chains in such conditions can cause damage
to the various mechanisms of the vehicle due to
some overstress.
Page 344 of 374
Wheel type Size Offset in (mm)
Aluminum/Steel 16 x 7JJ 1.77 (45)
Aluminum 17x71/2JJ 1.77(45)
Aluminum 18 x 7.5JJ 1.77 (45)
T type (Spare) 16 x 4T 1.77 (45)
Tire size P215/60R16
P215/55R17
P235/45R18
Spare tire T135/70R16
T135/90R16
9-8Technical and consumer information
REVIEW COPY—2009 Altima(alt)
Owners Manual—USA_English(nna)
09/08/08—debbie