WHISTLER FEATURES
1. Bracket Release Button – provides quick 
and easy release of the mounting bracket.
2. Speaker – provides distinct audio warnings 
for X, K, Ka band radar, safety warning system, 
and laser.
3. Mounting Bracket Location – slot holds
mounting bracket firmly.
4. Radar Antenna – compact, high-efficiency 
antenna receives radar signals.
5. Front Laser – high gain optical lens 
provides increased sensitivity and field of 
view for leading-edge laser detection.
6. Rear Laser – an integrated optical 
waveguide provides superior detection of 
laser signals transmitted from behind.
7. City Button - reduces the annoyance of 
false alerts typically encountered in urban 
driving areas.
8. Quiet Button - pressingQUIETbeforea 
signal is detected engages Auto Quiet Mode 
which automatically reduces the audio level after 
the initial warning to a low audio level setting. 
 PressingQUIETduringaradar/laserencounter
silences audio alerts, while allowing visual 
alerts to keep you informed. 
9. Power / Volume Control – gently press this 
button in to turn the unit on/off. Move back or 
 forwardtoadjusttheaudiolevel.
10. Dim / Dark - engages Dim/Dark modes.
11. Menu Button -entersOptionSelectMode.
12. Text Display – provides distinct visual confirmation 
of signals detected, signal strength, and indicates 
engaged modes of operation.
13. Alert Periscopes - provide an additional 
attention getting visual alert.
14. 
Power Jack – Provides connection for the 
power cord.
FEATURE DESCRIPTIONS
Mounting Guidelines
•Mount the unit as low as possible near thecenter of the windshield. 
•Do not mount the unit behind wipers,ornaments, mirrored sunscreens, etc. Theseobstructions have metal surfaces which canaffect radar and laser signals and reduce 
 criticalwarningtime.(Regulartintedglass does not affect reception).
• SomewindshieldshaveanInstaclear™orElectriclear™type coating, which affect radarsignals. Consult your dealer or the owner’smanual supplied with your vehicle to determineif your windshield has this coating.
•Avoid placing the unit in direct contact withthe windshield.
•To reduce the possibility of theft, concealthe unit when not in use.
IMPORTANT:Makesuretheunitislevel
Windshield Mounting
•Install the two suction cups and rubber bumperonto the bracket by fitting them into their holes.
•Press the suction cups onto the windshield at the 
location you have chosen.
INSTALLATION
Important: Somenewercarshaveaplasticsafety
coating on the inside of the windshield. The 
windshield bracket may leave permanent marks on 
this type of surface. To find out if your vehicle has 
this type of windshield, check the vehicle’s owner’s 
manual or ask your dealer. We recommend 
that you do not leave the suction cup bracket on 
the window in direct sunlight. If the detector is 
removed, this may cause blistering of the dash 
in some vehicles.
• Slidethedetectorontothebracketuntilitlocksintoplace.
•If necessary, the unit may be leveled by bending 
the windshield bracket. Press the bracket release 
button and remove the detector before bending.
Power Cord Connection
•Plug the small end of the power cord into the 
 unit’spowerjack.
•Plug the large end into the vehicle’s cigarettelighter socket.
Note: Cord fits tightly into detector. When 
installing the cord, expect some resistance.
Fuse Replacement
The lighter socket plug is equipped with a 
replaceable2amp,3AGfuselocatedbehind
the silver tip. To replace the fuse, carefully 
unscrew the tip of the plug.
INSTALLATION INSTALLATION
Power On Self Test & Volume
To turn the unit ON or OFF, gently press the 
center of the Power/Volume button into the side 
of the unit. Each time your Whistler detector 
is turned on, an automatic self-test sequence 
confirms that the speaker and visual displays are 
functional.
Audio Level Adjustment
Tochangetheaudiolevel:
• Move Power/Volume button back to increase 
audio level.
• Move Power/Volume button forward to 
decrease audio level. As audio level is 
adjusted,beepsareprovidedandthedisplay
indicates volume level. 
Auto Quiet Mode
Auto Quiet mode reduces the selected audio 
leveltolevel(1)approximately5secondsafter
a radar or safety warning system
™
 signal is 
detected. The alert for any new signal within 
20secondswillresumeatlevel(1).AutoQuiet
mode does not affect laser alerts.
• PressQuiet(beforeasignalisdetected)to
 engage Auto Quiet mode. 
•OncetheAutoQuietmodeisengaged,you
 may cancel the audio alarm by pressing Quiet.
•PressQuiet(whentheunitisnotalarming)to 
 cancel Auto Quiet mode.
Quiet Mode
Quiet mode cancels audio during an alert 
and any new alert within20seconds.After20
seconds of no radar signal detected, the audio 
alerts are restored.
•PressQuiettocanceltheaudio.
•Press Quiet a second time during an alert to 
 restore the standard audio alert pattern.
OPERATION
City/City 1/City 2 Mode
Whistler’sThreeStageCityModeisdesigned
to reduce the annoyance of automatic door 
op eners, intrusion alarms and other devices which 
share frequencies with police radar. Generally, X 
band is used for these devices.
•PressCitybuttontocancelHighwayMode
 and engage City Mode. 
•PressCitybuttonagaintoenterCity1Mode.
•PressCitybuttonagaintoenterCity2Mode.
•PressCitybuttonafourthtimetocancelCity2
 Mode and returns the unit to Highway Mode. 
In City Mode, weak speed/safety warning 
system
™
 signals give an initial alarm of two 
beeps, and then remains quiet unless the signal 
becomes very strong. When the signal strength 
increases, two additional beeps are provided. 
City1andCity2Modesoperatethesameas
HighwayMode,butinCity1Mode,onlythe
Xbandsensitivityislowered.InCity2Mode,
X-band is not detected.
Caution: Sometowns/smallcitiesmaystillbe
using X band radar. City Modes do not change 
the audio alert for laser.
Highway Mode
Highway mode provides full audio warnings 
anytimeradar(X,K,Ka,SafetyWarning
System
™
) or laser signals are detected, and is 
recommended for open road driving. 
OPERATION
Alert Periscopes
Whistler’s Alert Periscopes provide an added 
attention getting visual alert. The two extra LEDs 
flash on and off when the unit alarms to provide a 
unique visual alert. This alert can be programmed, 
throughtheOptionSelectModeto:1.flashforall
alarms,2.remainon, or 3. turn LEDs off completely.
Dim/Dark Mode
Dim/Dark Mode reduces the illumination of the 
display.
• Press the Dark button to reduce illumination 
to a Dim setting.
• Press the Dark button a second time engages 
Dark Mode. The display illumination is further 
reduced.
Dim or Dark Mode can be engaged during an 
alert. In Dark Mode, the display goes dark for 
aslongasasignalisbeingdetectedandfor20
seconds after, then the display returns to the 
dimmer setting.
• Press the Dark button a third time to restore 
full illumination to the display.
Selectable Vehicle Battery
Saver Mode
TheVehicleBatterySaverModeautomaticallyshuts
off your detector within 3 hours. The timer is reset if 
the detector is turned off, unplugged or any button 
is pressed before the timer has expired. The detector 
will alert you with an audible and visual warning 
before it shuts off. During this warning, you can 
momentarily reset the timer by pressing any button. If 
the unit has automatically turned off, press the Power 
button to turn the unit back on. 
Referto“Option
SelectMode”forinstructionsforchangingthe
battery saver mode options. 
OPERATION
OPERATION
X/K and Ka Filter Modes
There are times when a radar detector in another 
vehicle, can emit a frequency which can cause your 
detector to falsely alert. These Filter Modes allow you 
to select the level needed for your area to minimize 
the occurrences of these false alerts. X/K and Ka Filter 
Mode factory default settings should provide adequate 
filtering for most conditions. If you experience excessive 
alerts due to radar detectors in other vehicles, increase 
theFilterlevelforthebandreceived.SeeOption
SelectionModetochangethefiltersettings.
Ka Max Mode
Ka Max Mode provides enhanced Ka sensitivity - 
increased protection. This mode can be selected with 
orwithoutRSID.SeeOptionSelectModeforchanging
Ka options.
Traffic Flow Signal Rejection (TFSR)
Recently,manynewproductsoperateonXorKband
causingnuisancealertstoradardetectors.Someof
theseareradarbasedTrafficMonitoringSystems
mounted to poles alongside the highway and others 
areKBandLaneChangeAssistantsandBlindSpot
Detectors found on some automobiles. When turned 
on in option mode, helps eliminate excessive alerts from 
erroneous X and K-band sources. Traffic flow monitoring 
systems are getting more common. Many of these 
systems generate radar signals to measure the flow of 
traffic across multiple lanes. Most detectors will alert 
youtoitunnecessarily.Thisrejectionfeatureexamines
the incoming signal and will aid in reducing the alerts to 
such sources.
We suggest you turn TFSR on if you are experiencing excessive 
X or K band false alerts every half mile or so along stretches of 
roadway that contain these traffic flow sensors.
Option Select Mode 
PresstheMenubuttontoenterOptionSelectMode.
Each press of the Menu button changes to the next 
selectable feature.The Dark (D) button and the Quiet 
(Q) button turns the feature ON/OFF or Blinking for 
example.Abuttonmustbepressedwithin20seconds
orOptionSelectModewillautomaticallybeexited.(See
page 13 for chart)
OPERATION
Stay Alert Feature
TheStayAlertFeatureisdesignedtotestadriver’s
alertness.Toengage(whentheunitisnotalarming):
• PressandholdtheCitybuttonfor 
 approximately2seconds.Releasethebutton
 during or immediately after the alert is given. 
 
 DISPLAYSHOWS:
Within 30-60 seconds, two beeps are sounded; to 
show alertness, the driver must press either the City, 
Menu, or Quiet buttons within 3-5 seconds. If a button 
is pressed within 3-5 seconds, the cycle is repeated.
If a button is not pressed within 3-5 seconds, an 
alarm sounds.
  DISPLAYSHOWS:
• PresstheDarkbuttontoexittheStayAlert 
 feature.
WARNING!!! StayAlertisNOTintendedasa
substitute for adequate rest. You should NOT operate 
a vehicle if you are drowsy. During extended periods 
of vehicle operation, you should take frequent breaks. 
ImproperrelianceontheStayAlertfeaturemayresultin
vehicledamage,personalinjuryordeath.
OPERATIONOPERATION
 
 
Windshield
Mounting
Rubber
Bumper
45
3
•RadarSignatureID(RSID)
•LaserSignatureID(LSID)
•3FilterModes
•KaMaxMode
•TotalBandProtection™
•OLEDTextDisplay
•DetectsPOP™ Mode
•360°MaxxCoverage
•RealVoice®
•3CityModes/HighwayMode
•Quiet/Auto Quiet Mode
•Dim/DarkMode
•AutoDim
•StayAlert™
•SettingSaver
•
SelectableVehicleBatterySaver
™
•SafetyWarningSystem™
•AlertPriority
•AlertPeriscopes
•TrafficFlowSignalRejection
Features
IMPORTANT: Unscrewslowly.Thetipcontains
a spring which may fly out when disassembling. 
Insert the new fuse with the spring and screw on 
the tip. With use, the screw cap on the plug may 
loosen.Retightenitoccasionally.
Installing the Hardwire Kit
The“U”typeconnectormustbesecuredto
a metal surface that is electrically connected 
to the battery ground (negative) terminal.The 
spade type connector can connect to either live 
12voltsorswitched12voltsatyourfusepanel
accessory port. If no port is available, cut off the 
spadeterminal,expose1/4to1/2inchofwire,
andspliceintoasourceof12voltpower.
Fuse Replacement - Hardwire Kit
The inline fuse holder on the power cable is 
equippedwithareplaceable2amp,3AGfuse
located inside the fuse holder.
To replace the fuse, carefully twist the holder to 
open it to gain access to the fuse.
Integrated Real Voice®
Whenselected,RealVoice®will be used to 
articulatethefollowing:
 1. BandIdentification
 2. SafetyWarningSystemmessages
 3. FeatureSelection
Note: In certain cases, the voice message does 
not replicate the text message.
Teach/Tutorial Mode
Provides simulated alerts for each type of signal.
 •PressCityandQuietbuttonssimultaneously
 
 •DisplayShows:
 •PressDarkbuttontoexit.
Setting Saver
SettingSaverstoresyourpersonalizedsettings
so that when the detector is turned off and then 
on again, you do not have to re-enter them.
Feature Engaged Confirmation
Each time a button is pressed, one beep 
confirms feature “on”, two beeps confirm 
feature “off”.
Auto Dim
The Auto Dim feature automatically switches the 
illumination of the text display between the
bright and dim settings according to varying
light conditions so that the text display will
always be easy to read. To manually override 
the auto dim feature, use the dark button on 
theunit.EnterOptionSelectModetoturnoff
the auto dim feature.
2
9
6
1
8
10 11
7
13
12
14
Feature Display
Shows To Change:
D=Dark 
Q=Quiet
Option
QUIET S1: Quiet Dor Q
to select
Remote Control of Dim, City, 
Quiet Power Functions
POWER S2: Power Dor Q
to select
Remote Control of Dim, City, 
Quiet Power Functions
AUTO
DIM ADIM:ON D = ON
Q = OFF
Auto Dim On
Auto Dim Off
TONE TONE 3 Dor Q
to select
Tone 1, 2, 3
(3 Different Tone Patterns)
TEST TEST
ON
D = ON
Q = OFF
ON = X, K, Ka Audio Tones
OFF  = One Beep During Power Up
X
BAND X = ON D = ON
Q = OFF
X Band ON
X Band OFF
K
BAND K = ON D = ON
Q = OFF
K Band ON
K Band OFF
Ka
BAND
Ka-
MAXID
Dor Q
to select
Ka Band (RSID,NORM,
OFF,MAX,MAXID)
LASER LSR 
NORM
Dor Q
to select
LASER
(NORM,OFF,LSID)
LASER 
AREA 1 .02-.09 Y Dor Q
to select
Laser Area 1 ON
Laser Area 1 OFF
LASER 
AREA 2 2.6-3.2 Y Dor Q
to select
Laser Area 2 ON
Laser Area 2 OFF
LASER 
AREA 3 3.8-4.2 Y Dor Q
to select
Laser Area 3 ON
Laser Area 3 OFF
SWS
™
SWS
OFF
D = ON
Q = OFF
Turn SWS
™
 ON
Turn SWS
™
 OFF
VOICE
®
VOICE
ON
D = ON
Q = OFF
Real VOICE
®
 Engaged
Real VOICE
®
Disengaged
POP
™
POP
OFF
D = ON
Q = OFF
POP ON
POP OFF
BATTERY
SAVER
B SVR
ON
D = ON
Q = OFF
Battery Saver ON
Battery Saver OFF
XK
FILTER XK FLTR 1 Dor Q
to select Filter 1, Filter 2, Filter 3
Ka
FILTER Ka FLTR 1 Dor Q
to select Filter 1, Filter 2, Filter 3
ALERT
PERISCOPES LEDBLNK Dor Q
to select
Alert Periscopes ON
(ON, OFF or Blinking)
TFSR TFSR
OFF
D = ON
Q = OFF
TFSR = ON
TFSR = OFF (default)
Option Select Mode (cont’d)
NOTE: Press and hold Menu button to exit Option 
 SelectMode.
NEVER OPERATE A
VEHICLE IF YOU
ARE DROWSY!
OWNER’S MANUAL
CR85
HIGH Performance
LASER-RADAR
DETECTOR