Page 298 of 326
DIMENSIONS AND WEIGHTS
Unit: in (mm)
ModelMR20DE QR25DE
Overall length179.8 (4,567) 180.1 (4,575)
Overall width70.5 (1,790) 70.5 (1,790)
Overall height
59.5 (1,511)59.1 (1,501) (MT) , 59.4 (1,508)
(CVT)
Front Track
15 X 6.5 and 16 X 6.5 inch wheel 59.8 (1,520) N/A
17 X 7.0 inch wheel N/A 59.4 (1,510)
Rear Track
15 X 6.5 and 16 X 6.5 inch wheel 60.8 (1,544) N/A
17 X 7.0 inch wheel N/A 60.4 (1,534)
Wheelbase105.7 (2,685) 105.7 (2,685)
Gross vehicle weight rat-
inglb (kg)
See the “F.M.V.S.S./C.M.V.S.S. certification label” on the center pillar between the driver’s side
front and rear doors. Gross axle weight rating
Front lb (kg)
Rear lb (kg)
9-10Technical and consumer information
REVIEW COPY—2009 Sentra(sen)
Owners Manual—USA_English(nna)
10/27/08—tbrooks
Page 311 of 326

WARNING
Never connect a trailer brake system di-
rectly to the vehicle brake system.
When towing a trailer load of 3,500 lbs.
(1587 kg) or more, trailers with a brake
system MUST be used. However, most
states require a separate braking system
on trailers with a loaded weight above a
specific amount. Make sure the trailer
meets the local regulations and the regu-
lations where you plan to tow.
Several types of braking systems are
available.
Surge Brakes - The surge brake actuator
is mounted on the trailer tongue with a
hydraulic line running to each trailer
wheel. Surge brakes are activated by the
trailer pushing against the hitch ball when
the tow vehicle is braking. Hydraulic surge
brakes are common on rental trailers and
some boat trailers. In this type of system,
there is no hydraulic or electric connec-
tion for brake operation between the tow
vehicle and the trailer.Electric Trailer Brakes - Electric braking
systems are activated by an electronic sig-
nal sent from a trailer brake controller
(special brake-sensing module) . If electric
trailer brakes are used, seeElectric trailer
brake controllerin this section.
Have a professional supplier of towing
equipment make sure the trailer brakes
are properly installed and demonstrate
proper brake function testing.
Pre-towing tips
●Be certain your vehicle maintains a level
position when a loaded and/or unloaded
trailer is hitched. Do not drive the vehicle if it
has an abnormal nose-up or nose-down
condition; check for improper tongue load,
overload, worn suspension or other possible
causes of either condition.
●Always secure items in the trailer to prevent
load shift while driving.
●Keep the cargo load as low as possible in
the trailer to keep the trailer center of gravity
low.
●Load the trailer so approximately 60% of the
trailer load is in the front half and 40% is in
the back half. Also make sure the load is
balanced side to side.●Check your hitch, trailer tire pressure, ve-
hicle tire pressure, trailer light operation, and
trailer wheel lug nuts every time you attach a
trailer to the vehicle.
●Be certain your rearview mirrors conform to
all federal, state or local regulations. If not,
install any mirrors required for towing before
driving the vehicle.
●Determine the overall height of the vehicle
and trailer so the required clearance is
known.Trailer towing tips
In order to gain skill and an understanding of the
vehicle’s behavior, you should practice turning,
stopping and backing up in an area which is free
from traffic. Steering stability and braking perfor-
mance will be somewhat different than under
normal driving conditions.
●Always secure items in the trailer to prevent
load shift while driving.
●Lock the trailer hitch coupler with a pin or
lock to prevent the coupler from inadvert-
ently becoming unlatched.
●Avoid abrupt starts, acceleration or stops.
●Avoid sharp turns or lane changes.
Technical and consumer information9-23
REVIEW COPY—2009 Sentra(sen)
Owners Manual—USA_English(nna)
10/27/08—tbrooks
Page 323 of 326

Precautions
Maintenance precautions..........8-5
Precautions on child
restraints............1-20,1-28,1-35
Precautions on seat belt usage.......1-9
Precautions on supplemental restraint
system....................1-40
Precautions when starting and driving . . .5-2
Programmable features.............4-5
Push starting..................6-10
R
Radio
Car phone or CB radio...........4-39
Compact Disc (CD) changer.......4-34
FM/AM radio with compact disc (CD)
player....................4-23
FM/AM/SAT radio with compact disc (CD)
changer...................4-31
FM/AM/SAT radio with compact disc (CD)
player....................4-27
Steering wheel audio control switch....4-37
Readiness for inspection maintenance (I/M)
test........................9-28
Rear center seat belt..............1-16
Rear power windows..............2-33
Rearseat................1-3,1-4,1-5
Rear window and outside mirror defroster
switch......................2-19
Recorders
Eventdata..................9-29
Refrigerant recommendation..........9-7
Registering your vehicle in another
country......................9-11Reporting safety defects (US only)......9-27
Resetting average speed............4-4
Resetting the fuel economy...........4-4
Resetting trip time................4-5
S
Safety
Child safety rear door lock..........3-6
Child seat belts........1-20,1-28,1-35
Reporting safety defects (US only)....9-27
Seat adjustment
Front manual seat adjustment........1-2
Seat belt
Child safety.................1-12
Infants and small children.........1-12
Injured Person................1-13
Larger children...............1-12
Precautionsonseatbeltusage.......1-9
Pregnant women..............1-13
Rear center seat belt............1-16
Seat belt extenders.............1-19
Seat belt maintenance...........1-19
Seatbelts...................1-9
Shoulder belt height adjustment......1-19
Three-point type with retractor.......1-13
Seat belt warning light.............2-12
Seatback pockets................2-27
Seats
Adjustment..................1-2
Frontseats..................1-2
Heated seats................2-23
Manual front seat adjustment........1-2
Rear seat..............1-3,1-4,1-5
Security indicator light.............2-14Security system (NISSAN vehicle immobilizer
system) , engine start........2-17,3-2,5-10
Self-adjusting brakes..............8-21
Service manual order form...........9-29
Servicing air conditioner............4-16
Setting button..................4-5
Shift lock release................5-15
Shifting
Continuously Variable Transmission
(CVT) ....................5-13
Manual transmission............5-17
Shoulder belt height adjustment........1-19
Side air bag system (See supplemental side
air bag and curtain side-impact air bag
system).....................1-52
Spark plug replacement............8-18
Speedometer...................2-3
Spotlights(Seemaplight)...........2-38
SRSwarninglabel...............1-55
Starting
Before starting the engine.........5-10
Jump starting.................6-8
Precautions when starting and driving . . .5-2
Push starting................6-10
Starting the engine.............5-10
Steering
Power steering system...........5-23
Tilting steering wheel............3-26
Steering wheel audio control switch......4-37
Stoplight ....................8-29
Storage.....................2-25
Storagebin...................2-25
Storage tray...................2-26
Sunglasses case................2-25
Sunglasses holder...............2-25
Sunroof (see Moonroof)............2-35
10-5
REVIEW COPY—2009 Sentra(sen)
Owners Manual—USA_English(nna)
10/27/08—tbrooks