2017 AUDI A8 brake light

Emergency assistance
Taking the wheel off/installing the spare
Follow these instructions step-by-step for chang­
ing the wheel .
Fig. 281 Changing a wheel: using the screw driver handle
(with the blade removed) to turn the bolts
Fig. 282 Chang ing a whee l: alignment pin inside the top
hole
After you have loosened all wheel bolts and
raised the vehicle off the ground, remove and re­
place the wheel as follows:
Removing the wheel
• Use the hexagonal socket in the screwdriver
handle
to completely remove the topmost
wheel bolt and set it aside on a
clean surface
¢fig. 281.
• Screw the threaded end of the alignment pin
from the tool kit hand-tight into the empty bolt
hole
c> fig. 282 1) _
• Then remove the other wheel bolts as described
above.
•Ta keoff the wheel leaving the alignment pin in
the bolt hole ¢0 .
l) Applies to vehicles w ith ce ram ic b rake rotors*: Use a sec­
ond alignment pin* (sto red in th e spa re wheel well mo ld­
ing) for the lower hole, follow ing the description for the
firs t alignment pin.
318
Putting on the spare wheel
• Lift the spare wheel and carefully slide it over
the alignment pin to guide it in place ¢0 .
• Use the hexagonal socket in the screwdriver
handle to screw in and tighten all wheel bolts
slightly.
• Remove the alignment pin and insert and tight­
en the remaining wheel bolt slightly like the
rest.
• Turn the jack handle counter-clockwise to lower
the vehicle until the jack is fully released.
• Use the wheel bolt wrench to tighten all wheel
bolts firmly¢
page 315. Tighten them cross­
wise,
from one bolt to the (approximately) op­
posite one, to keep the wheel centered.
(D Note
When removing or installing the wheel, the
rim could hit the brake rotor/ceramic brake
rotor* and damage the rotor. Work carefully
and have a second person help you.
(D Tips
Never use the hexagonal socket in the handle
of the screwdriver to loosen or tighten the
wheel bolts.
- Pull the reversible blade from the screwdriv­
er before you use the hexagonal socket in
the handle to turn the wheel bolts.
- When mounting tires with
unidirectional
tread design
make sure the tread pattern is
pointed the right way¢
page 319.
-The wheel bolts should be clean and easy to
turn. Check for dirt and corrosion on the
mating surfaces of both the wheel and the
hub. Remove all dirt from these surfaces be­
fore remounting the wheel.

C) C0 ....
"' " "' .... 0 0 :r Driver's side cockpit fuse assignment
Fig. 287 Driver side cockpi t: fuse panel with plastic bracket
Fuse panel @ (brown)
No. Equipment
1 Light switch
2 Eme rgency start coil (driver identification)
3 Left rear door control module
4 Head-up display
5 Horn
6 Interior lights (headliner)
Steering column lever, multifunction
8 steering whee l controls, steering wheel
heating
10 Power steering column adjustment
11 Driver door control module
12 Diagnostic connector, light/rain sensor
14 Power steering column adjustment
lS Power steering, A/C compressor
16 Brake booster
Fuse panel © (black)
No. Equipment
1 Front seat heating
2 Windshield wipers
Fuses and bulbs
Fuse panel © (black)
3
Front exterior lighting
4 Sliding/tilting sunroof
s Driver power window
6 Driver's seat (pneumat ic)
7 Panorama roof
8 Dynamic steering
9 Front exterior lighting
10 Windshield/headlight washer system
11 Left rear power window
12 Panorama roof
Front passenger side cockpit fuse
assignment
Fig. 288 Fro nt passenger side cockpit: fuse panel with
plastic bracket
Fuse panel @ (black)
No. Equipment
1 Anti-theft alarm system
2 Transmission control module
3 Front climate control fan
4 Engine supply
6 Engine control module
7 Front passenger door control module
323

Fuses and bulbs
Fuse panel @ (black) Fuse panel@ (black)
8 Front passenger power window 11 Right rear power window
9 ESC control module 12 Front passenger's seat (pneumatic)
10 ESC control module
Luggage compartment fuse assignment
F ig. 289 Luggage compar tment: fuse panel with p lastic brack et
Fuse panel @ (black) Fuse panel@ (black)
No. Equipment
l
ESC button , data logger, diagnostic con-
nector, BCM -1, adaptive light 10
Rear
seat heating, refrigerator, rearview
mirror
11 Electromechanical
steering
2 Networking gateway 12 Selector lever, BCM-2 voltage
3 adaptive air suspension
13 Side assist
4 Park ing aid 14 Engin e control module
5 Steering column lever 15 Starter
6 Suspension control system sensor
7 Belt tensioners, airbag control module 16
Left
headlight (headligh ts with adaptive
lig ht)/head light range control
Heated washer flu id nozzles, Home Link
8 (garage door opener) , night vision system
control module, sport differential, ionizer
9
Electromechan ical parking brake control
module
Fuse panel ® (red)
No. Equipment
l Left reversible belt tensioner
2 Right reversible belt tensioner
324

0 co .... N ,..... N .... 0 0 :c ' Fuse panel @ (red)
3
Starter diagnosis, DC/DC converter (with
Start/Stop system)
4 DC/DC converter (with Start/Stop system)
5 Image processing
6
Right headl ight (headlights with adaptive
light)
7 ESC control module
8
Sound actuator, AEM contro l modu le/
crankcase housing heater
9 Adapt ive cru ise control
10 Transmission control module
11 Climate control system sensors
Fuse panel © (brown)
No . Equipment
1 Electromechanical parking brake
2 Suspension control system sensor
3 Rear Infotainment system control panel
4 Smart mod ule (tank)
5 Front climate control system controls
6 Rear climate control system control panel
7 Networking gateway
8 Refrigerator
9 Special functions interface
10 Cell phone adapter, Bluetooth handset
11 AEM control module
12 Selector lever
13 Interior lighting
14 Rear exter ior light ing
15 Fue l pump
16 Electromechan ica l parking brake
Fuse panel @ (black)
No . Equipment
1 Luggage compa
rtment lid movement-acti-
vated opening
2 Luggage compartment sockets
3 Rea r socket
4 Front cigarette lighter
5 adaptive air suspension
6 1 lS V socket
Fuses and bulbs
Fuse panel @ (black)
7 Electromechanical parking brake
8 Rear seat heating
9 Rear exterior lighting
10 Rear climate control blower
Rear sun shade, closing aid, luggage com-
11 partment lid lock, convenience key, fuel
filler door
12 L uggage compartment lid control module
Fuse panel © (red)
No. Equipment
1 Rear seat adjustment buttons
3 Left rear seat (pneumatic)
s Trailer hitch control module
6 Left rear seat
7 R ight rear seat
8 Trailer hitch control module
9 Tra ile r hitch control module
10 Right rear seat (pneumatic)
Fuse panel® (brown)
No. Equipment
1
Start/Stop system, radio receiver/sound
amplifier
2 Sound amplifier
3
Start/Stop system, Rear Seat Entertain-
ment, radio receiver/sound amplifier
s
Automat ic dimming interior rearview mir-
r or (for Start-Stop system)
6 DVD changer (glove compartment)
7 TV tuner
8 Infotainment system control panel/drives
9 Instrument cluster, analog clock
10 Infotainment system display
11 Radio receiver
12
Rearview camera, peripheral cameras
(parking system)
325

Emergency situations
@ Tips
The discharged battery must be properly con­
nected to the vehicle's electrical system .
When jump starting or charging the battery,
never connect the negative ground cable to
the battery negative post because the battery
manager system must be able to detect the
battery's state of charge. Always connect the
negat ive ground cable to the negative ground
pos t of the battery manager control unit.
Using the jump start
cable
Both jump start cables must be connected in the
correct order!
Fig. 290 E ngin e compartme nt: co nn ectors for jump start
cables and a charger
Fig. 291 Jump starting using a battery in anot her vehicle:
A -prov idin g current, B -drai ned
The procedure for connecting jump start cables
that is descr ibed next is designed to help jump
start your vehicle.
Vehicle with discharged battery:
... Turn off lights and accessories, move automatic
transmission lever to N (Neutral) or P (Park)
and set parking brake.
328
Connecting the positive cable (red) to the
positive terminal
... Open the cover on the positive terminal
qfig . 290.
1. Secure one end of the pos itive cable (red) to
t he jump start pin
(D q fig. 291 (pin under
the cover = "plus") on the vehicle that needs
to be started @.
2. Secure the other end of the positive cable
(red) to the positive terminal @on the bat­
te ry provid ing the cur rent @.
Connecting the negative cable (black) to the
negative terminal
3. Secure one end of the negative cable (black)
to the negative terminal @ on the battery
that is providing the current @.
4. Secure the other end of the negative cable
(black) to the jump start pin@ (hex head pin
= "negative") on the vehicle that needs to be
started @.
Starting the engine
... Sta rt the eng ine on the vehicle providing the
jump start @and let it run at idle .
... Now start the engine on the vehicle with the
drained battery @.
... If the engine does not start, stop the starting
procedure after 10 seconds and then repeat it
after approximately 30 seconds .
... Remove the cables whe n the engi nes are run­
ning. Remove them in reverse order from the
way they were installed.
" Close the cover on the positive terminal.
The battery is vented to the outside to prevent
gases from enter ing the vehicle interior. Make
sure that the jumper clamps are well connected
with their
metal parts in full contact with the
battery terminals .
A WARNING
To avoid serious personal injury and damage
to the vehicle, heed all warnings and instruc­
tions of the jumper cable manufacturer. If in
doubt, call for road service .
- Jumper cables must be long enough so t hat
the vehicles do not touch.
Ill>

0 co .... N ,..._
N .... 0 0 :c ' Brake fluid
Checking the brake fluid level . . . . . . . . . . 279
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . 2 79
Electromechanical parking brake . . . . . . . . 81
New brake pads . . . . . . . . . . . . . . . . . . . . . 128
Braking Brake assist . . . . . . . . . . . . . . . . . . . . . . . . 126
Emergency braking function . . . . . . . . . . . . 81
Worn brake pads . . . . . . . . . . . . . . . . . . . . . 23
Brak ing guard . . . . . . . . . . . . . . . . . . . . . . 94, 99
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Break-in period
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
B reak ing in
New brake pads . . . . . . . . . . . . . . . . . . . . . 128
N ew engine . . . . . . . . . . . . . . . . . . . . . . . . . 73
Ne w tires . . . . . . . . . . . . . . . . . . . . . . . . . . 290
Browsing through album covers . . . . . . . . . 190
Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
But tons
Mul tifunc tion steering wheel . . . . . . . . . . . 11
C
Cable (Audi music interface)
California Proposition 65 Warning ...... .
Battery specific .............. .. .... .
Call .. .. .. .. .. ............... .. .... . 185
272
280 149
Call list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Call options . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Capacities Fuel tank. . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Washer fluid reservoir . . . . . . . . . . . . . . . . 334
Car carrier Transporting your vehicle . . . . . . . . . . . . . 330
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306
Cargo area
refer to Luggage compartment.. .. ..... 213
Caring for and cleaning leathe r . . . . . . . . . . 309
Catalytic converter
CD 271
refer
to Media . . . . . . . . . . . . . . . . . . 180, 189
Ce ll phone
Playing music . . . . . . . . . . . . . . . . . . . . . . . 183
also refer to Telephone . . . . . . . . . . . . . . . 146
Center armrest . . . . . . . . . . . . . . . . . . . . . . . . 55
Index
Center conso le lighting . . . . . . . . . . . . . . . . . 4 7
Central locking . . . . . . . . . . . . . . . . . . . . . . . . 27
Centra l locking sw itch . . . . . . . . . . . . . . . . . 31
Convenience key . . . . . . . . . . . . . . . . . . . . . . 30
Em ergency locking . . . . . . . . . . . . . . . . . . . . 32
Luggag e compartment lid . . . . . . . . . . . . . . 33
Remote contro l key . . . . . . . . . . . . . . . . . . . 30
Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Certification . . . . . . . . . . . . . . . . . . . . . . . . . 339
Chang ing engine oil . . . . . . . . . . . . . . . . . . . 277
Changing the battery . . . . . . . . . . . . . . . . . . 198
Charging and chang ing the battery . . . . . . . 198
Child restraints . . . . . . . . . . . . . . . . . . . . . . . 266
Danger of using child restraints in the front
seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Child restraint system anchors . . . . . . . . . . 261
Child safety . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Gu idance fixtures for lower anchorages . . 262
Child safety lock . . . . . . . . . . . . . . . . . . . . . . . 36
Child safety seat . . . . . . . . . . . . . . . . . . . . . . 253
Child safety seats Convertib le child seats . . . . . . . . . . . . . . . 255
Infant seats . . . . . . . . . . . . . . . . . . . . . . . . 254
Installing a child restraint using the LATCH
system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
LATCH system . . . . . . . . . . . . . . . . . . . . . . 263
Lower anchorages . . . . . . . . . . . . . . . . . . . 262
Mounting and releasing the anchorage
hook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Safety instruc tions . . . . . . . . . . . . . . . . . . . 251
Child seats . . . . . . . . . . . . . . . . . . . . . . . . . . 254
Securing ........................... 258
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306
Cleaning/removing ice from windows . . . . . 308
Cl eaning Alcantara . . . . . . . . . . . . . . . . . . . . 309
Cleaning art ificial leather . . . . . . . . . . . . . . . 309
Cleaning carbon parts . . . . . . . . . . . . . 308, 309
Cl eaning controls . . . . . . . . . . . . . . . . . . . . . 308
Cleaning decorative parts and trim . . . . . . . 308
Cleaning displays . . . . . . . . . . . . . . . . . . . . . 308
Cleaning exhaust tail pipes . . . . . . . . . . . . . 308
Cleaning plastic parts . . . . . . . . . . . . . . . . . . 308
Cl eaning tail lights . . . . . . . . . . . . . . . . . . . . 307
Cleaning textiles . . . . . . . . . . . . . . . . . . . . . . 309
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
341

Index
Closing Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Panorama glass roof . . . . . . . . . . . . . . . . . . 39
Sun roof.. .. .. ...... ......... .... .... 38
Sun shade (panoramic sunroof) . . . . . . . . . 40
Sunshade (sliding/tilting sunroof) . . . . . . . 38
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Closing/opening . . . . . . . . . . . . . . . . . . . . . . . 30
Closing aid (doors) . . . . . . . . . . . . . . . . . . . . . 27
Cockpi t (overview) . . . . . . . . . . . . . . . . . . . . . . 7
Color number . . . . . . . . . . . . . . . . . . . . . . . . 333
Coming home . . . . . . . . . . . . . . . . . . . . . . . . . 46
Compartments . . . . . . . . . . . . . . . . . . . . . . . . 63
Compass in the mirror . . . . . . . . . . . . . . . . . . S2
Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . 339
Conference call . . . . . . . . . . . . . . . . . . . . . . . 149
Connecting and d isconnecting an MP3 play-
er . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Connections
refer to Media . . . . . . . . . . . . . . . . . . 180 , 189
Consum er information . . . . . . . . . . . . . . . . . 336
Consumer Information . . . . . . . . . . . . . . . . . 214
Consumption (fuel) . . . . . . . . . . . . . . . . . . . 333
Contacting NHTSA . . . . . . . . . . . . . . . . . . . . 214
Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
I mport ing/exporting 153
Convenience key Unlocking/locking . . . . . . . . . . . . . . . . . . . . 30
Cooling mode (automatic climate control) . . 70
Cooling system Checking/adding coolant. . . . . . . . . . . . . . 277
Coolant temperature indicator . . . . . . . . . . . 9
Cover Flow
refer to Browsing through album covers . 190
Cup holders . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Current economy . . . . . . . . . . . . . . . . . . . . . . 12
D
Data encryption 196
Data recorder . . . . . . . . . . . . . . . . . . . . . . . . 132
Date.. .... .. .. ... ............ .... .. . 204
Date display . . . . . . . . . . . . . . . . . . . . . . 16, 204
Daylight saving time . . . . . . . . . . . . . . . . . . . 204
Daytime running lights . . . . . . . . . . . . . . . . . 43
Declar ation of compliance . . . . . . . . . . . . . . 339
342
Defrosting (windows) . . . . . . . . . . . . . . . . . . . 71
DEF (instrument cluster) . . . . . . . . . . . . . . . . 10
Demo mode
refer to Presentation mode . . . . . . . . . . . . 172
Determining correct load limit . . . . . . . . . . 297
Digital compass . . . . . . . . . . . . . . . . . . . . . . . 52
D igital Rights Management . . . . . . . . . . . . . 180
D.
. 1mens1ons . .. .. .. .. .. .. ........... . .
Directory
refer to Contacts
Display 334
150
Brightness . . . . . . . . . . . . . . . . . . . . . 196, 206
Settings .... .. . ... .. .. ......... 190, 196
Distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Doors Child safety lock . . . . . . . . . . . . . . . . . . . . . . 36
Closing aid . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Emergency locking . . . . . . . . . . . . . . . . . . . . 32
Driver information system . . . . . . . . . . . . . . . 12
Ind icator lights . . . . . . . . . . . . . . . . . . . . . . 17
Service interval display . . . . . . . . . . . . . . . 282
Driver seating position . . . . . . . . . . . . . . . . . 208
Drives
refer to Media . . . . . . . . . . . . . . . . . . 180, 189
Drive select . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Driving safe ly . . . . . . . . . . . . . . . . . . . . . . . . 207
Driving through water . . . . . . . . . . . . . . . . . . 73
Driving time . . . . . . . . . . . . . . . . . . . . . . . . . . 12
DVD Changer . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Full screen display . . . . . . . . . . . . . . . . . . . 190
also refer to Media . . . . . . . . . . . . . . . 180, 189
Dynamic steering . ... .. ........... 110, 129
Dynamic volume
refer to System volume . . . . . . . . . . . . . . . 205
E
Economy tips (efficiency program) . . . . . . . . 13
E conomy (fuel) . . . . . . . . . . . . . . . . . . . . . . . . 12
Efficiency program . . . . . . . . . . . . . . . . . . . . . 13
E lectromechanical parking brake . . . . . . . . . 81
Electronic Differential Lock (EDL) . . . . . . . . 126
Electronic immobilizer . . . . . . . . . . . . . . . . . . 28
Electronic speed limiter . . . . . . . . . . . . . . . . . 26

Index
Starting/canceling route guidance . . . . . . 170
also refer to Entering a destination . . . . . 165
also refer to Map . . . . . . . . . . . . . . . . . . . . 170
Network connection (W i-Fi) . . . . . . . . . . . . . 160
Next/previous track . . . . . . . . . . . . . . . . . . . 190
NHTSA
Contacting
N' ht . . .
19 v1s1on assist ................... .
Clean ing the camera .......... .... .. .
Number of seats .. ................ ... .
0
Occupant seating positions
Octane rating .. .. ................ ... .
Odometer
. .. ... ................... ...
214
107
307
218
208
267 10
OFF (automatic climate control . . . . . . . . . . . 70
O il
refer to Engine oil . . . . . . . . . . . . . . . . . . . 274
O il change interval . . . . . . . . . . . . . . . . . . . . 282
On-board computer . . . . . . . . . . . . . . . . . . . . 12
On-Board Diagnostic System (OBD) . . . . . . . . 25
On/Off knob
MMI control panel . . . . . . . . . . . . . . . . . . .
134
RSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Online services
refer to Audi connect . . . . . . . . . . . . . . . . . 157
Opening. .. .. .. .. .. ... ........ .. .. .. .. 27
F uel filler door . . . . . . . . . . . . . . . . . . . . . . 269
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Luggag e compartment lid . . . . . . . . . . . 34, 36
Panorama glass roof . . . . . . . . . . . . . . . . . . 39
Sunroof .. .. .. ............... .... .... 38
Sun shade (panoramic sunroof) . . . . . . . . . 40
Sunshade (sliding/tilting sunroof) . . . . . . . 38
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Operating
Multifunction steering wheel . . . . . . . . . . .
11
Multi Media Interface . . . . . . . . . . . . . . . . 135
RSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Overboost (automatic transmission) . . . . . . . 87
Overview
Menus and symbols . . . . . . . . . . . . . . . . . .
138
Overview (Cockpit) . . . . . . . . . . . . . . . . . . . . . . 7
346
p
Paint damage . . . . . . . . . . . . . . . . . . . . . . . . 308
Paint number . . . . . . . . . . . . . . . . . . . . . . . . 333
Panorama glass roof. . . . . . . . . . . . . . . . . . . . 39
Panoramic sunroof
Sun shade . . . . . . . . . . . . . . . . . . . . . . . . . . .
40
Parental control
DVD ......... ... ... .............. ..
190
Parenta l control (DVD) . . . . . . . . . . . . . . . . . 196
Parking brake
refer to Electromechanical parking brake
Parking system Adjusting the display/warning tone .... .
Cleaning the sensors/camera ........ . .
Malfunction
. . . .. .. .. .. ........... . .
81
124
307 124
Periphera l cameras . . . . . . . . . . . . . . . . . . 119
Trail er hitch . . . . . . . . . . . . . . . . . . . . . . . . 124
alsorefertoParkingsystems ...... llS, 116
p k' ar mg systems . . . . . . . . . . . . . . . . . . . . . . 114
R . earv 1ewcamera . .. .. .. ........... .. 116
Parking (valet parking function) . . . . . . . . . . 40
Parts replacement . . . . . . . . . . . . . . . . . . . . 338
Pass -through . . . . . . . . . . . . . . . . . . . . . . . . . 66
PASSENGER AIR BAG OFF light ........ ..
237
Passenger protection . . . . . . . . . . . . . . . . . . 216
Pause (audio/video file) . . . . . . . . . . . . . . . . 190
Pedals 212
Phone book
refer to Contacts . . . . . . . . . . . . . . . . . . . . 150
Physical principles of a frontal collision . . . 219
Point of interest search . . . . . . . . . . . . . . . . 167
Po lish ing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
Pollutant filter (automatic A/C system) . . . . 69
Pregnant women
Special considerations when wearing a safe-
ty belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
223
Pre sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Presentation mode . . . . . . . . . . . . . . . . . . . . 172
Pressure (tires) . . . . . . . . . . . . . . . . . . . . . . . 301
Preventative passenger protection (pre
sense) ..............................
216
Prewarming . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Prompts (settings)
refer to Voice guidance . . . . . . . . . . . . . . . 172