2012 NISSAN FRONTIER key battery

Your vehicle is equipped with a variable voltage
control system. This system measures the
amount of electrical discharge from the battery
and controls voltage generated by the generator.
The current sensor
Ais located near the battery
along the negative battery cable. If you add elec-
trical accessories to your vehicle, be sure to
ground them to a suitable body ground such as
the frame or engine block area.
1. Power steering fluid pump
2. Automatic belt tensioner
3. Cooling fan
4. Air conditioner compressor
5. Crankshaft pulley
6. Generator
WARNING
Be sure the ignition key is in the OFF or
LOCK position before servicing drive belt.
The engine could rotate unexpectedly. 1. Visually inspect the belt for signs of unusual
wear, cuts, fraying or looseness. If the belt is
in poor condition or is loose, have it replaced
or adjusted by a NISSAN dealer.
2. Have the belt checked regularly for condi- tion and tension in accordance with the
maintenance schedule found in the
“NISSAN Service and Maintenance Guide”.
VQ40DE
WDI0639
DRIVE BELT
8-18Maintenance and do-it-yourself

KEYFOB (if so equipped)
Replace the battery in the keyfob as follows:
1Open the lid using a coinA.
2Remove the batteryB.
3Install a new batteryCwith the “+” facing
down.
● Hold the battery by the edges. Holding the
battery across the contact points will seri-
ously deplete the storage capacity. ●
Do not touch the internal circuit and electric
terminals as it could cause a malfunction.
● When changing the battery, do not let dust
or oil get on the keyfob.
● There is danger of explosion if a lithium bat-
tery is incorrectly replaced. Replace only
with the same or equivalent type.
Recommended battery: CR2025 or equivalent.
4Close the lid securely.
5. Press the
button, then thebutton two or three times to check the key-
fob operation.
If the battery is removed for any reason
other than replacement, perform step 5. ● An improperly disposed battery can
hurt the environment. Always confirm
local regulations for battery disposal.
● The keyfob is water-resistant; how-
ever, if it does get wet, immediately
wipe completely dry.
● The operational range of the keyfob
extends to approximately 33 ft (10 m)
from the vehicle. This range may vary
with conditions.
LDI2026
8-28Maintenance and do-it-yourself

G
Garage door opener, HomeLink Universal
Transceiver....................2-54
Gascap .....................3-11
Gauge Engine coolant temperature gauge .....2-6
Engine oil pressure gauge ..........2-8
Fuel gauge ...................2-7
Odometer ...................2-4
Speedometer .................2-4
Tachometer ..................2-6
Trip computer .................2-9
Trip odometer .................2-4
Voltmeter....................2-8
Generalmaintenance...............8-2
Glovebox.....................2-42
H
Hands-free phone system, Bluetooth .....4-37
Hazard warning flasher switch .........2-32
Headlightandturnsignalswitch........2-28
Headlightcontrolswitch ............2-28
Headlights....................8-29
Heated seats ...................2-33
Heater Heater and air conditioner controls . .4-2, 4-10
Heater operation ............4-4,4-11
Hill descent control switch ...........2-35
Hill descent control system ...........5-36
Hill start assist system ..............5-37
HomeLink UniversalTransceiver........2-54
Hood release ...................3-10 Horn .......................2-33
I
Ignition switch ..................5-10
Immobilizer system .........2-25,3-2,5-11
Important vehicle information label .......9-11
In-cabin microfilter ................8-20
Increasing fuel economy .............5-22
Indicator lights and audible reminders
(See warning/indicator lights and audible
reminders)....................2-14
Inside automatic anti-glare mirror ........3-15
Inside mirror ...................3-15
Instrument brightness control ..........2-31
Instrument panel ...............0-6,2-2
Instrument panel dimmer switch ........2-31
Interiorlight....................2-53
ISOFIX child restraints .............1-28
J
Jumpseat .....................1-7
Jump starting ...................6-10
K
Key.........................3-2
Keyfob battery replacement ...........8-27
Keyless entry system
(See remote keyless entry system) ........3-6 L
Labels Air conditioner specification label .....9-12
C.M.V.S.S. certification label ........9-11
Emission control information label .....9-12
Engine serial number ............9-11
F.M.V.S.S. certification label .........9-11
Tire and Loading Information label .....9-12
Vehicle identification number (VIN) plate . .9-10
Warning labels (for SRS) ..........1-78
LATCH (Lower Anchors and Tethers for CHildren)
System ......................1-28
License plate Installing the license plate ..........
9
-13
Light Airbagwarninglight.........1-79, 2-20
Brake light (See stop light) .........8-31
Bulb check/instrument panel ........2-15
Bulbreplacement..............8-31
Charge warning light ............2-16
Fog light switch ...............2-32
Headlightandturnsignalswitch......2-28
Headlight control switch ..........2-28
Headlights..................8-29
Interiorlight..................2-53
Lightbulbs..................8-29
Low tire pressure warning light .......2-18
Low windshield-washer fluid warning
light......................2-19
Passenger air bag and status light .....1-73
Security indicator light ............2-22
Warning/indicator lights and audible
reminders...................2-14
Lights Maplights ..................2-54
10-3