engine coolant NISSAN FRONTIER 2019 Owner´s Manual

Seats:Check seat position controls such
as seat adjusters, seatback recliner, etc., to
ensure they operate smoothly and all
latches lock securely in every position.
Check that the head restraints/headrests
move up and down smoothly and the locks
(if so equipped) hold securely in all latched
positions.
Seat belts: Check that all parts of the seat
belt system (for example, buckles, anchors,
adjusters and retractors) operate properly
and smoothly, and are installed securely.
Check the belt webbing for cuts, fraying,
wear or damage.
Steering wheel: Check for changes in the
steering system, such as excessive free
play, hard steering or strange noises.
Warning lights and chimes: Make sure all
warning lights and chimes are operating
properly.
Windshield defroster: Check that the air
comes out of the defroster outlets properly
and in sufficient quantity when operating
the heater or air conditioner.
Windshield wiper and washer*: Check
that the wipers and washer operate prop-
erly and that the wipers do not streak.Under the hood and vehicle
The maintenance items listed here should
be checked periodically (for example, each
time you check the engine oil or refuel).
Battery (for maintenance free batter-
ies)*: This vehicle is equipped with a sealed
maintenance free battery. It is recom-
mended that you visit a NISSAN dealer for
service.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery dis-
charge and potential no-start conditions
such as:
1. Installation or extended use of elec-
tronic accessories that consume bat-
tery power when the engine is not
running (Phone chargers, GPS, DVD
players, etc.).
2. Vehicle is not driven regularly and/or
only driven short distances.
In these cases, the battery may need to
be charged to maintain battery health. Brake and clutch (if so equipped) fluid
level*:
Make sure that the fluid level is be-
tween the MAX and MIN lines on the reser-
voir.
Engine coolant level*: Check the coolant
level when the engine is cold.
Engine drive belts*: Make sure the drive
belts are not frayed, worn, cracked or oily.
Engine oil level*: Check the level af ter
parking the vehicle on a level spot and
turning off the engine. Wait more than
15 minutes for the oil to drain back into the
oil pan.
Exhaust system: Make sure there are no
loose supports, cracks or holes. If the
sound of the exhaust seems unusual or
there is a smell of exhaust fumes, immedi-
ately have the exhaust system inspected. It
is recommended that you visit a NISSAN
dealer for this service. For additional infor-
mation, refer to “Exhaust gas (carbon mon-
oxide)” in the “Starting and driving” section
of this manual.
Fluid leaks: Check under the vehicle for
fuel, oil, water or other fluid leaks af ter the
vehicle has been parked for a while. Water
dripping from the air conditioner af ter use
is normal. If you should notice any leaks or if
9-4Maintenance and schedules

fuel fumes are evident, check for the cause
and have it corrected immediately.
Power steering fluid level* and lines:
Check the level when the fluid is cold, with
the engine off. Check the lines for proper
attachment, leaks, cracks, etc.
Radiator and hoses:Check the front of the
radiator and clean off any dirt, insects,
leaves, etc., that may have accumulated.
Make sure the hoses have no cracks, defor-
mation, rot or loose connections.
Underbody: The underbody is frequently
exposed to corrosive substances such as
those used on icy roads or to control dust. It
is very important to remove these sub-
stances, otherwise rust may form on the
floor pan, frame, fuel lines and around the
exhaust system. At the end of winter, the
underbody should be thoroughly flushed
with plain water, being careful to clean
those areas where mud and dirt may accu-
mulate. For additional information, refer to
the “Appearance and care” section of this
manual.
Windshield-washer fluid*: Check that
there is adequate fluid in the reservoir. The following descriptions are provided to
give you a better understanding of the
scheduled maintenance items that should
be regularly checked or replaced. The
maintenance schedule indicates at which
mileage/time intervals each item requires
service.
In addition to scheduled maintenance,
your vehicle requires that some items be
checked during normal day-to-day opera-
tion. For additional information, refer to
“General maintenance” in this section.
Items marked with
“*”are recommended
by NISSAN for reliable vehicle operation.
You are not required to perform mainte-
nance on these items in order to maintain
the warranties which come with your
NISSAN. Other maintenance items and in-
tervals are required.
When applicable, additional information
can be found in the “Do-it-yourself ” section
of this manual. NOTE:
NISSAN does not advocate the use of
non-OEM approved af termarket flush-
ing systems and strongly advises
against performing these services on a
NISSAN product. Many of the af termar-
ket flushing systems use non-OEM ap-
proved chemicals or solvents, the use of
which has not been validated by NISSAN.
For recommended fuel, lubricants, fluids,
grease, and refrigerant, refer to “Recom-
mended fluids/lubricants and capaci-
ties” in the “Technical and consumer in-
formation” section of this manual.
EMISSION CONTROL SYSTEM
MAINTENANCE:
Drive belts*:
Check engine drive belts for
wear, fraying or cracking and for proper
tension. Replace any damaged drive belts.
Engine air filter: Replace at specified inter-
vals. When driving for prolonged periods in
dusty conditions, check/replace the filter
more frequently.
Engine coolant*: Replace coolant at the
specified interval. When adding or replac-
ing coolant, be sure to use only Genuine
NISSAN Long Life Antifreeze/Coolant (blue)
EXPLANATION OF SCHEDULED
MAINTENANCE ITEMS
Maintenance and schedules9-5

or equivalent with the proper mixture. (For
additional information on the proper mix-
ture for your area, refer to “Engine cooling
system” in the “Do-it-yourself ” section of
this manual.)
NOTE: Mixing any other type of coolant
or the use of non-distilled water may re-
duce the recommended service interval
of the coolant.
Engine oil and oil filter:Replace engine oil
and oil filter at the specified intervals. For
recommended oil grade and viscosity refer
to “Recommended fluids/lubricants and
capacities” in the “Technical and consumer
information” section of this manual.
Evaporative emissions control vapor
lines*: Check vapor lines for leaks or loose-
ness. Tighten connections or replace parts
as necessary.
Fuel lines*: Check the fuel hoses, piping
and connections for leaks, looseness, or
deterioration. Tighten connections or re-
place parts as necessary.
Spark plugs: Replace at specified intervals.
Install new plugs of the same type as origi-
nally equipped.CHASSIS AND BODY
MAINTENANCE:
Brake lines and cables: Visually inspect for
proper installation. Check for chafing,
cracks, deterioration, and signs of leaking.
Replace any deteriorated or damaged
parts immediately.
Brake pads and rotors: Check for wear,
deterioration and fluid leaks. Replace any
deteriorated or damaged parts immedi-
ately.
Exhaust system: Visually inspect the ex-
haust pipes, muffler and hangers for leaks,
cracks, deterioration, and damage. Tighten
connections or replace parts as necessary.
In-cabin microfilter: Replace at specified
intervals. When driving for prolonged peri-
ods in dusty conditions, replace the filter
more frequently.
Steering gear and linkage, axle and sus-
pension parts, drive shaf t boots: Check
for damage, looseness, and leakage of oil
or grease. Under severe driving conditions,
inspect more frequently. Tire rotation:
Tires should be rotated every
5,000 miles (8,000 km) according to the in-
structions under “Explanation of general
maintenance items” in this section. When
rotating tires, check for damage and un-
even wear. Replace if necessary.
Transmission fluid/oil, differential oil: Vi-
sually inspect for signs of leakage at speci-
fied intervals.
9-6Maintenance and schedules

EMISSION CONTROL SYSTEM
MAINTENANCE
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace
MAINTENANCE OPERATION
Perform at number of miles, kilometers or months, whichever comes first. miles x 1,000
(km x 1,000) Months MAINTENANCE INTERVAL
5
(8) 6 10
(16) 12 15
(24) 18 20
(32) 24 25
(40) 30 30
(48) 36 35
(56) 42 40
(64) 48 45
(72) 54 50
(80) 60 55
(88) 66 60
(96) 72
Drive belts See NOTE (1) I*I*I*
Air cleaner filter See NOTE (2) RR
EVAP vapor lines I*I*I*
Fuel lines I*I*I*
Fuel filter See NOTE (3)
Engine coolant* See NOTE (4)(5)
Engine oil RRRRRRRRRRRR
Engine oil filter RRRRRRRRRRRR
Spark plugs See NOTE (6)Replace every 105,000 miles (168,000 km)
Intake and exhaust valve clearances* See NOTE (7)
9-8Maintenance and schedules

MAINTENANCE OPERATION
Perform at number of miles, kilometers or months, whichever comes first. miles x 1,000
(km x 1,000) Months MAINTENANCE INTERVAL
65
(104) 78 70
(112) 84 75
(120) 90 80
(128) 96 85
(136) 102 90
(144) 108 95
(152) 114 100
(160) 120 105
(168) 126 110
(176) 132 115
(184) 138 120
(192) 144
Drive belts See NOTE (1)I*I*I*I*I*I*
Air cleaner filter See NOTE (2) RR
EVAP vapor lines I*I*I*
Fuel lines I*I*I*
Fuel filter See NOTE (3)
Engine coolant* See NOTE (4)(5)
Engine oil RRRRRRRRRRRR
Engine oil filter RRRRRRRRRRRR
Spark plugs See NOTE (6)Replace every 105,000 miles (168,000 km)
Intake and exhaust valve clearances* See NOTE (7)
NOTE:
(1) Af ter 40,000 miles (64,000 km) or 48 months, inspect every 10,000 miles (16,000 km) or 12 months. Replace the drive belts if
found damaged.
(2) If operating mainly in dusty conditions, more frequent maintenance may be required.
(3) Periodic maintenance is not required.
(4) First replacement interval is 105,000 miles (168,000 km) or 84 months. Af ter first replacement, replace every 75,000 miles
(120,000 km) or 60 months.
(5) Use only Genuine NISSAN Long Life Antifreeze/Coolant (blue) or equivalent with proper mixture ratio of 50% antifreeze and 50%
demineralized or distilled water. Mixing any other type of coolant or the use of non-distilled water may reduce the life expectancy
of the factory fill coolant.
(6) Replace spark plug when the plug gap exceeds 0.053 in (1.35 mm) even if within specified periodic replacement mileage.
(7) Periodic maintenance is not required. However, if valve noise increased, inspect valve clearance.
* Maintenance items and intervals with “*” are recommended by NISSAN for reliable vehicle operation. The owner need not perform
such maintenance in order to maintain the emission warranty or manufacturer recall liability. Other maintenance items and
intervals are required.
Maintenance and schedules9-9

The following are approximate capacities. The actual refill capacities may be a little different. When refilling, follow the procedure
described in the “Do-it-yourself ” section to determine the proper refill capacity.
Fluid typeCapacity (approximate) Recommended Fluids/Lubricants
Metric
Measure US
Measure Imperial
Measure
Fuel 80 L 21-1/8 gal 17-5/8 gal• For additional information, refer to “Fuel recommenda-
tion (for QR25DE models)”, “Fuel recommendation (for
VQ40DE models)” or “Flexible Fuel Vehicle (FFV) fuel rec-
ommendation” in this section.
Engine oil*1
Drain and refill
*1: For additional
information, refer to
“Engine” in the “Do-it-
yourself ” section of
this manual. QR25DE
With oil filter
change 4.6 L 4-7/8 qt 4 qt • Genuine “Nissan Motor Oil 5W-30” (or equivalent) is
recommended.
• If the above motor oil (or engine oil) is not available, a
synthetic SAE 5W-30 GF-5 SN motor oil (or engine oil) may
be used. Damage caused by the use of motor oil (or en-
gine oil) other than as recommended is not covered un-
der NISSAN’s/INFINITI’s New Vehicle Limited Warranty. For
additional information, refer to “Engine oil and oil filter
recommendation” in this section.
Without oil
filter change 4.3 L 4-1/2 qt 3-3/4 qt
VQ40DE With oil filter
change 5.1 L 5-3/8 qt 4-1/2 qt • Genuine “Nissan Motor Oil 5W-30” (or equivalent) is
recommended.
• If the above motor oil (or engine oil) is not available, a
synthetic SAE 5W-30 GF-5 SN motor oil (or engine oil) may
be used. Damage caused by the use of motor oil (or en-
gine oil) other than as recommended is not covered un-
der NISSAN’s/INFINITI’s New Vehicle Limited Warranty. For
additional information, refer to “Engine oil and oil filter
recommendation” in this section.
Without oil
filter change 4.8 L 5-1/8 qt 4-1/4 qt
Engine coolant
(with reservoir) QR25DE
9.4 L 2-1/2 gal 2-1/8 gal
• Pre-diluted Genuine NISSAN Long Life Antifreeze/
Coolant (blue) or equivalent
VQ40DE 10.2 L 2-3/4 gal 2-1/4 gal
RECOMMENDED FLUIDS/
LUBRICANTS AND CAPACITIES
10-2Technical and consumer information

∙ Always drive your vehicle at a moderatespeed.
∙ When backing up, hold the bottom of the steering wheel with one hand. Move
your hand in the direction in which you
want the trailer to go. Make small cor-
rections and back up slowly. If possible,
have someone guide you when you are
backing up.
Always block the wheels on both vehicle
and trailer when parking. Parking on a
slope is not recommended; however, if you
must do so:
CAUTION
If you move the shif t lever to the P (Park)
position before blocking the wheels
and applying the parking brake, trans-
mission damage could occur.
1. Apply and hold the brake pedal.
2. Have someone place blocks on the downhill side of the vehicle and trailer
wheels.
3. Af ter the wheel blocks are in place, slowly release the brake pedal until the
blocks absorb the vehicle load.
4. Apply the parking brake. 5. Shif t the transmission into P (Park).
6. Make sure the
indicator light (if so
equipped) indicates the transfer case is
in 4H, 4L, or 2H and that the ATP light is
off. If the
indicator light is flashing,
or the ATP light is ON, make sure the
transmission is in P (Park) (A/T) and
turn the 4WD switch to 2WD or 4H. For
additional information, refer to “Auto-
matic transmission park warning light”
in the “Instruments and controls” sec-
tion and “Using 4-wheel drive (4WD)” in
the “Starting and driving” section of this
manual.
7. Turn off the engine.
To drive away:
1. Start the vehicle.
2. Apply and hold the brake pedal.
3. Shif t the transmission into gear.
4. Release the parking brake.
5. Drive slowly until the vehicle and trailer are clear from the blocks.
6. Apply and hold the brake pedal.
7. Have someone retrieve and store the blocks. ∙ While going downhill, the weight of the
trailer pushing on the tow vehicle may
decrease overall stability. Therefore, to
maintain adequate control, reduce your
speed and shif t to a lower gear. Avoid
long or repeated use of the brakes
when descending a hill, as this reduces
their effectiveness and could cause
overheating. Shif ting to a lower gear in-
stead provides “engine braking” and re-
duces the need to brake as frequently.
∙ If the engine coolant temperature rises to a high temperature, refer to “If your
vehicle overheats” in the “In case of
emergency” section of this manual.
∙ Trailer towing requires more fuel than normal circumstances.
∙ Avoid towing a trailer for your vehicle’s first 500 miles (805 km).
∙ For the first 500 miles (805 km) that you do tow, do not drive over 50 mph
(80 km/h).
∙ Have your vehicle serviced more of ten than at intervals specified. For addi-
tional information, refer to “Mainte-
nance Schedules” in the “Maintenance
and schedules” section of this manual.
10-40Technical and consumer information

Brakes......................8-22
Brake system..................5-35
Break-in schedule ...............5-24
Brightness/contrast button ......4-9,4-15
Brightness control Instrument panel .............2-32
Bulb check/instrument panel ........2-15
Bulb replacement ...............8-30
C
Capacities and recommended fuel/
lubricants....................10-2
Cargolampswitch..............2-33
Cargo
(See vehicle loading information) .....10-19
Car phone or CB radio ............4-83
CDcareandcleaning.............4-74
CD player (See audio system) ........4-56
Childrestraints........1-25, 1-26, 1-28, 1-30 LATCH (Lower Anchors and Tethers for
CHildren)System..............1-30
Precautions on child
restraints.........1-28, 1-40, 1-56, 1-68
Top tether strap anchor point
locations...................1-33
Child restraint with top tether strap . . . .1-33
Child safety rear door lock ..........3-6
Chimes, audible reminders .........2-24
Cleaningexteriorandinterior......7-2,7-4
Clock set/adjustment ..........4-7,4-13
Clock setting (models with Navigation
System) .....................4-13
Clutch Clutchfluid.................8-14 Clutch interlock (clutch start) switch . . .2-38
C.M.V.S.S. certification label
.........10-16
Cold weather driving .............5-43
Compact disc (CD) player ..........4-56
Compass .....................2-11
Compass and outside temperature
display......................2-10
Compass display ................2-11
Connect phone ................4-76
Console box ..................2-45
Control panel buttons ..........4-4,4-10
Back button .................4-13
Brightness/contrast button ....4-9,4-15
Enterbutton..............4-4,4-10
Settingbutton.............4-7,4-13
Withnavigationsystem.......4-10,4-11
Controls Audio controls (steering wheel) .....4-74
Heater and air conditioner
controls................4-23,4-35
Coolant Capacities and recommended
fuel/lubricants...............10-2
Changing engine coolant .........8-6
Checking engine coolant level ......8-6
Engine coolant temperature gauge . .2-6
Corrosionprotection..............7-8
Cruisecontrol .................5-22
Cupholders ..................2-46
Curtain side-impact and rollover air
bag........................1-87
D
Daytime Running Lights (DRL) system . . .2-31 Defroster switch
Rear window and outside mirror
defrosterswitch..............2-28
Rearwindowdefrosterswitch.....2-28
Dimensions and weights ..........10-14
Dimmer switch for instrument panel . . .2-32
Display controls
(see control panel buttons) .......4-4,4-10
Door locks ....................3-3
Door open warning light ...........2-17
Drivebelt.....................8-17
Driving Coldweatherdriving...........5-43
Driving with automatic
transmission ................5-14
Driving with manual transmission . . .5-19
Precautions when starting and
driving .....................5-2
Driving the vehicle ...............5-14
E
Economy - fuel .................5-25
Electronic locking rear differential (E-Lock)
system......................5-33
Electronic locking rear differential (E-Lock)
systemswitch.................2-37
Emission control information label ....10-17
Emission control system warranty . . . .10-44
Engine Before starting the engine ........5-13
Capacities and recommended
fuel/lubricants...............10-2
Changing engine

coolant.........8-6
Changing engine oil ............8-8
11-2

Changing engine oil filter.........8-8
Checking engine coolant level ......8-6
Checking engine oil level .........8-7
Engine compartment check
locations...................8-3
Engine coolant temperature gauge . .2-6
Engine cooling system ..........8-5
Engine oil ...................8-7
Engine oil and oil filter
recommendation .............10-11
Engine oil pressure gauge ........2-8
Engine oil pressure warning light ....2-17
Engine oil viscosity ............10-11
Engine serial number ..........10-15
Engine specifications ..........10-13
Starting the engine ............5-13
Engine Block Heater .............5-45
Engine coolant temperature gauge ....2-6
Engine oil pressure gauge ..........2-8
Enterbutton................4-4,4-10
EventDatarecorders............10-46
Exhaust gas (Carbon monoxide) .......5-2
Explanation of maintenance items .....9-2
Explanation of scheduled maintenance
items .......................9-5
Extended storage switch ..........8-26
Eyeglasscase.................2-45
F
Firstaidkit....................6-2
Flashers
(See hazard warning flasher switch) ....6-2
Flattire....................6-3,6-4
Floormatpositioningaid...........7-6 Fluid
Brakefluid..................8-13
Capacities and recommended
fuel/lubricants...............10-2
Clutchfluid.................8-14
Engine coolant ...............8-5
Engine oil ...................8-7
Powersteeringfluid............8-12
Windshield-washer fluid .........8-14
F.M.V.S.S. certification label .........10-16
Foglightswitch................2-32
Front air bag system
(See supplemental restraint system) . . . .1-81
Front-door pocket ..............2-40
Front power seat adjustment ........1-5
Frontseats....................1-2
Fuel Capacities and recommended
fuel/lubricants...............10-2
Fuel economy ...............5-25
Fuel gauge ..................2-7
Fueloctanerating..........10-6,10-9
Fuel recommendation .......10-4,10-7
Loose fuel cap warning .......2-5,3-11
Fuel efficient driving tips ...........5-24
Fuel-filler door ..................3-11
Fuel gauge ....................2-7
Fuses .......................8-23
Fusiblelinks...................8-24
G
Garage door opener, HomeLink® Universal
Transceiver . .2-55, 2-56, 2-57, 2-58, 2-58, 2-59 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...................2-9
General maintenance .............9-2
Glovebox....................2-44
H
Hands-fr ee

phone system,
Bluetooth®...................4-102
Hazardwarningflasherswitch........6-2
Headlight and turn signal switch ......2-29
Headlightcontrolswitch...........2-29
Headlights...................8-28
Headrestraints.................1-10
Heated seat switches ............2-34
Heater Heater and air conditioner
controls................4-23,4-35
Heater operation ..........4-26,4-36
Hill descent control switch ..........2-35
Hill descent control system .........5-41
Hill start assist system ............5-42
HomeLink® Universal
Transceiver . .2-55, 2-56, 2-57, 2-58, 2-58, 2-59
Hood release ..................3-10
Horn.......................2-33
11-3

Foglightswitch..............2-32
Hazard warning flasher switch......6-2
Headlight and turn signal switch ....2-29
Headlightcontrolswitch.........2-29
Hill descent control switch ........2-35
Ignition switch ...............5-11
Instrument brightness control .....2-32
Overdriveswitch..............5-18
Power door lock switch ..........3-4
Rear sonar system OFF switch .....2-38
Rear window and outside mirror de-
frosterswitch ...............2-28
Rearwindowdefrosterswitch.....2-28
Turn signal switch .............2-32
T
Tachometer ...................2-6
Tailgate ..................3-18, 3-18
Tailgatelatch...............3-22,3-23
Temperature gauge Engine coolant temperature gauge . .2-6
Thef t (NISSAN Vehicle Immobilizer System),
engine start ...............2-26,5-12
Three-waycatalyst...............5-3
Tie down hooks ................3-24
Tilting steering wheel .............3-14
Tire Flattire..................6-3,6-4
Spare tire ...............6-5,8-44
Tire and Loading Information label . .10-17
Tire chains .................8-40
Tire pressure .............8-33,8-33
Tirerotation.................8-41
Tires of 4-wheel drive ...........8-43 Types of tires
................8-39
Uniform tire quality grading ......10-43
Wheels and tires ..........8-33,10-14
Wheel/tire size ...............10-14
Tire pressure Lowtirepressurewarninglight.....2-18
Tire Pressure Monitoring System (TPMS) . .5-3
Toptetherstrapchildrestraint.......1-33
Towing 2-wheel drive models ........6-18,6-19
4-wheel drive models ...........6-17
Flattowing.............10-41,10-42
Towing load/specification .......10-33
Towtrucktowing .............6-15
Trailertowing...............10-29
Towingatrailer................10-29
Transceiver HomeLink® Universal
Transceiver ..........2-55,2-56,2-57,
2-58, 2-58, 2-59
Transmission Driving with automatic
transmission ................5-14
Driving with manual transmission . . .5-19
Travel (See registering a vehicle in another
country) .....................10-15
Trip computer ..................2-9
Trip odometer ..................2-4
Troubleshooting guide
(NISSAN voice recognition system) ....4-116
Truckbox.................3-18,3-18
Truck - camper loading ...........10-28
Turn signal switch ...............2-32 U
Under seat storage bin ............2-42
Uniform tire quality grading ........10-43
USB interface Audio file operation ............4-62
USB (Universal Serial Bus) Connection Port
(models with Navigation System) .....4-61
USB (Universal Serial Bus) Connection Port
(models without Navigation System) . . .4-58
Using 4-Wheel Drive (4WD) ..........5-26
V
Vanitymirror..................3-15
Variablevoltagecontrolsystem......8-17
Vehicle dimensions and weights .....10-14
Vehicle Dynamic Control (VDC) OFF
switch......................2-35
Vehicle Dynamic Control (VDC) system . .5-38
Vehicle identification .............10-15
Vehicle identification number (VIN) . . . .10-15
Vehicle identification number (VIN)
p l

ate.......................10-15
Vehicle immobilizer system ......2-26,5-12
Vehicle loading information ........10-19
Vehiclerecovery................6-19
Vehicle security system ...........2-24
Vehicle security system (NISSAN Vehicle
Immobilizer System), engine start . .2-26, 5-12
Ventilators ...................4-23
Visors...................... .3-15
Voice Prompt Interrupt ....4-86,4-87,4-105
Voice recognition system ..........4-112
Voltmeter.................... .2-9
11-7