Page 1 of 323
Introduction 4
Instrument Cluster 10
Warning lights and chimes 10
Gauges 14
Entertainment Systems 16
AM/FM stereo with CDX6/MP3 16
Auxiliary input jack (Line in) 23
USB port 25
Satellite radio information 28
Navigation system 31
SYNC 31
Climate Controls 32
Dual automatic temperature control 32
Navigation system based climate control 35
Rear window defroster 39
Lights 40
Headlamps 40
Turn signal control 47
Bulb replacement 48
Driver Controls 52
Windshield wiper/washer control 52
Steering wheel adjustment 53
Power windows 56
Mirrors 58
Speed control 60
Adaptive cruise control 63
Moon roof 73
Message center 78
Table of Contents
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2009 MKS(mks)
Owners Guide (post-2002-fmt)
USA(fus)
Page 13 of 323

information on this system, refer toTire pressure monitoring system
(TPMS)in theTires, Wheels and Loadingchapter.
Adaptive cruise control (ACC)
(if equipped):Illuminates when
there is a vehicle in front of you.
Speed control:Illuminates when
the speed control is engaged or
when the ACC is engaged without
following a vehicle. Turns off when
the speed control system is
disengaged or when the ACC in
activated.
Overdrive cancel and grade
assist:Illuminates when the
overdrive function of the
transmission has been turned off
and the grade assist function has
been turned on, refer to theDrivingchapter.
Anti-theft system (if equipped):
Flashes when the SecuriLock™
Passive Anti-theft System has been
activated.
Door ajar:Illuminates when the
ignition is turned on and any door is
open.
Throttle Control/Transmission:
Illuminates when a powertrain or an
AWD fault has been detected.
Contact your authorized dealer as
soon as possible.
Turn signal:Illuminates when the
left or right turn signal or the
hazard lights are turned on. If the
indicators flash faster, check for a burned out bulb.
2009 MKS(mks)
Owners Guide (post-2002-fmt)
USA(fus)
Instrument Cluster
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Page 48 of 323

INTERIOR LAMPS
Second row map lamps
The second row lamps are located
at the rear of the headliner above
each outboard seat.
The second row lamps light when:
•any door is opened,
•the instrument panel dimmer
switch is rotated up until the
courtesy lamps come on, and
•any of the remote entry controls are pressed and the ignition is off.
Press the lamp lens to activate the reading lamps.
BULB REPLACEMENT
Headlamp condensation
The headlamps are vented to equalize pressure. When moist air enters
the headlamp(s) through the vents, there is a possibility that
condensation can occur. This condensation is normal and will clear
within 45 minutes of headlamp operation.
Using the right bulbs
Replacement bulbs are specified in the chart below. Headlamp bulbs
must be marked with an authorized “D.O.T.” for North America and an
“E” for Europe to ensure lamp performance, light brightness and pattern
and safe visibility. The correct bulbs will not damage the lamp assembly
or void the lamp assembly warranty and will provide quality bulb burn
time.
Function Number of bulbsTrade
number
Headlamp high beam/low beam 2 D3S
Front park/turn/sidemarker
lamp2 3457
* Sidemarker lamp (rear) 2 LED
* Tail lamp 2 LED
Turn signal 4 HPC 16WY
2009 MKS(mks)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
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Page 49 of 323

Function Number of bulbsTrade
number
License plate lamp 2 168
* High-mount brake lamp 1 LED
Fog lamp (if equipped) 2 H11
Map lamp 2 12V6W
Dome/reading lamps 3 578
To replace all instrument panel lights, see your authorized dealer.
* To replace these lamps, see your authorized dealer.
Replacing the interior bulbs
Check the operation of all bulbs frequently.
Replacing exterior bulbs
Check the operation of all the bulbs frequently.
Replacing HID headlamp bulbs
The headlamps on your vehicle use a “high intensity discharge” source.
These lamps operate at a high voltage. When the bulb is burned out, the
bulb assembly must be replaced by your authorized dealer.
Replacing front parking lamp/turn signal/sidemarker bulbs
1. Make sure headlamp switch is in the off position, then open the hood.
2. Reach in behind the headlamp assembly to access the bulb sockets
and connectors.
3. Locate the parking/turn signal
lamp electrical connector and
remove it by pulling it straight off.
4. Remove the bulb socket by
turning it counterclockwise and
pulling it straight out.
5. To remove the bulb, pull it
straight out of the bulb socket.
Install the new bulb(s) in reverse order.
2009 MKS(mks)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
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Page 50 of 323

Replacing rear brake/tail/turn and sidemarker lamp bulbs
The brake/tail/turn/side marker lamp and backup bulbs are located in the
tail lamp assembly. Follow the same steps to replace the bulbs.
Note:Your vehicle is equipped with a tail lamp assembly containing
integral multiple light emitting diodes (LED) for the stop/tail and
sidemarker functions. If replacement is required, see your authorized
dealer.
•(1)Turn signal bulbs
•(2)Backup lamp
•(3)Stop/tail and sidemarker
bulbs (LED)
1. Make sure the headlamp switch is
in the off position and open the
trunk.
2. Remove the cargo net fastener (if
equipped) and carefully pull the
carpet away to expose the backside
of the tail lamp assembly.
3. Remove the nut and washer assemblies, then pull the lamp assembly
away from the vehicle.
4. Remove the bulb socket by rotating it counterclockwise, then pulling it
out of the lamp assembly.
5. Pull the bulb straight from the socket.
Note:The turn bulb is a socket/bulb assembly and the bulb cannot be
removed separately.
Install the new bulb(s) in reverse order.
Replacing high-mount brake lamp bulbs
Your vehicle is equipped with an LED center high-mount stop lamp. It is
designed to last the life of the vehicle. If replacement is required, it is
recommended that you see your authorized dealer.
2009 MKS(mks)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
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