212:
immobilizer system. The original SmartKeys had a limited frequency and could have only been used in line-of-sight for safety purposes. The driver can also point the smart key at the front driver side door while pushing and holding the unlock button on the SmartKey and the windows and the sunroof will open in order to ventilate the cabin. Similarly, if the same procedure is completed while holding the lock button, the windows and sunroof will close. In cars equipped with the Active
Ventilated Seats, the summer opening feature will activate seat ventilation in addition to opening the windows and sunroof.
1520:
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1378:
71:
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282:(also: Keyless Entry / Go; Passive Entry / Go) is Mercedes' term for an automotive technology which allows a driver to lock and unlock a vehicle without using the corresponding SmartKey buttons. Once a driver enters a vehicle with an equipped Keyless Go SmartKey or Keyless Go wallet-size card, they have the ability to start and stop the engine, without inserting the SmartKey. A
139:
158:'s system was found to be the most secure, while certain BMW and Mercedes keys failed, being theoretically capable of allowing cars to be driven away while their owners were refueling. Despite these security vulnerabilities, auto theft rates have decreased 7 percent between 2009 and 2010, and the National Insurance Crime Bureau credits smart keys for this decrease.
2101:
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is close to the SmartKey. So on first view, the
Keyless Entry / Go ECU and the SmartKey could communicate together. A third person at the car could pull the door handle and the door would open. However, in every Keyless Entry / Go system provisions exist to avoid a successful two-way communication via RSA. Some of the most known are:
302:
125 kHz) transmitting antennas both inside and outside the vehicle. The external antennas are located in the door handles. When the vehicle is triggered, either by pulling the handle or touching the handle, an LF signal is transmitted from the antennas to the key. The key becomes activated if it
206:
The SmartKey's electronics are embedded in a hollow, triangular piece of plastic, wide at the top, narrow at the bottom, squared-off at the tip with a half-inch-long insert piece. The side of the SmartKey also hides a traditional
Mercedes-Benz key that can be pulled out from a release at the top. The
193:
Once inside a
Mercedes-Benz vehicle, the SmartKey fob, unlike keyless entry fobs, is placed in the ignition slot where a starter computer verifies the rolling code. Verified in milliseconds, it can then be turned as a traditional key to start the engine. The device was designed with the cooperation
372:
A second scenario exists under the name "relay station attack" (RSA). The RSA is based on the idea of reducing the long physical distance between the car and the regular car owner's SmartKey. Two relay stations will be needed for this: The first relay station is located nearby the car and the second
360:
It is important that the vehicle can't be started when the user and therefore the smart key is outside the vehicle. This is especially important at fueling stations where the user is very close to the vehicle. The internal LF field is allowed to overshoot by a maximum of 10 cm to help minimise
223:
is a type of smart key developed by BMW that includes a small LCD color touchscreen on it. It performs the standard functions that a key fob would normally do such as locking, unlocking & keyless start, but because of the screen the user can also perform a number of the features from BMW's app.
211:
and/or trunk before the SmartKey is turned over to a parking attendant. Once locked manually, the trunk cannot be opened with the SmartKey or interior buttons. The key fob utilizes a radio-frequency transponder to communicate with the door locks, but it uses infrared to communicate with the engine
185:
in 1997 to replace the infrared security system introduced in 1989. Daimler-Benz filed the first patents for SmartKey on
February 28, 1997, in German patent offices, with multifunction switchblade key variants following on May 17, 1997. The device entailed a plastic key to be used in place of the
467:
Dead spots are a result of the maximum overshoot requirement from above. The power delivered to the internal LF antennas has to be tuned to provide the best performance i.e. minimum dead spots and maximum average overshoot. Dead spots are usually near the extremities of the vehicle e.g. the rear
125:
Some vehicles automatically adjust settings based on the smart key used to unlock the car. User preferences such as seat positions, steering wheel position, exterior mirror settings, climate control (e.g. temperature) settings, and stereo presets are popular adjustments. Some models, such as the
488:
Slots have proven to be problematic, as they can go wrong and the key becomes locked in and cannot be removed. Another problem with the slot is it can't compensate for a fob battery below certain operating threshold. Most smart key batteries are temperature sensitive causing the fob to become
90:
radio pulse generator in the key housing. Depending on the system, the vehicle is automatically unlocked when a button or sensor on the door handle or trunk release is pressed. Vehicles with a smart-key system have a mechanical backup, usually in the form of a spare key blade supplied with the
476:
If the battery in the smart key becomes depleted, it is necessary for there to be a backup method of opening and starting the vehicle. Opening is achieved by an emergency (fully mechanical) key blade usually hidden in the smart key. On many cars emergency starting is achieved by use of an
121:
When leaving a vehicle that is equipped with a smart-key system, the vehicle is locked by either pressing a button on a door handle, touching a capacitive area on a door handle, or simply walking away from the vehicle. The method of locking varies across models.
198:
Automotive and Huf exclusively for
Mercedes-Benz, but many luxury manufacturers have implemented similar technology based on the same idea. In addition to the SmartKey, Mercedes-Benz now integrates as an option
481:. The user either has to put the key in a slot or hold it near a special area on the cockpit, where there is an inductive coil hidden behind which transfers energy to a matching coil in the dead key fob using
186:
traditional metal key. Electronics that control locking systems and the ignitions made it possible to replace the traditional key with a sophisticated computerized "Key". It is considered a step up from
153:
motor insurance research expert
Thatcham introduced a standard for keyless entry, requiring the device to be inoperable at a distance of more than 10 cm from the vehicle. In an independent test, the
286:
built within the SmartKey allows the vehicle to identify a driver. An additional safety feature is integrated into the vehicle, making it impossible to lock a SmartKey with
Keyless Go inside a vehicle.
203:; this feature allows the driver to keep the SmartKey in their pocket, yet giving them the ability to open the doors, trunk as well as starting the car without ever removing it from their pocket.
870:
352:
The smart key determines if it is inside or outside the vehicle by measuring the strength of the LF fields. In order to start the vehicle, the smart key must be inside the vehicle.
894:
825:
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revealed that 20 car models with
Keyless Go could be entered and driven away without the key. In 2014, 6,000 cars (about 17 per day) were stolen using keyless entry in
114:
without inserting a key in the ignition, provided the driver has the key inside the car. On most vehicles, this is done by pressing a starter button or twisting an
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765:
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One of which includes commanding the car to self park from the key if your car has self parking capability. The key is currently available for the
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992:
271:. The key is rechargeable and will last about 3 weeks. It can be charged via a micro USB port on the side or wirelessly on the center console.
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access and authorization system that is available either as standard equipment or an option in several car designs. It was developed by
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307:>300 MHz) to a receiver located in the vehicle. If the key has the correct ID, the PASE module unlocks the vehicle.
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this risk. Maximum overshoot is usually found on the side windows where there is very little attenuation of the signal.
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130:, even have settings to prevent the vehicle from exceeding a maximum speed if it has been started with a certain key.
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190:. The SmartKey adopts the remote control buttons from keyless entry, and incorporates them into the SmartKey fob.
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pocketed when unlocking, locking and starting the vehicle. The key is identified via one of several
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A Keyless Entry / Go system should be able to detect and handle most of the following cases:
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within the same vehicle. Depending on the electric car architecture, the following are some
290:
823:
https://www.motoringresearch.com/car-news/ford-fiesta-focus-theft-proof-keyless-entry-fobs/
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565:"The push-button ignition was a luxurious way to start your car until it wasn't"
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vehicle. Some manufacturers hide the backup lock behind a cover for styling.
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receiving radio frequency RF signals (> 300 MHz) from the built-in
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is sufficiently close and it transmits its ID back to the vehicle via RF (
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Relay
Attacks on Passive Keyless Entry and Start Systems in Modern Cars
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62:, after the design patent was filed by Daimler-Benz on May 17, 1997.
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intermittent, fully functional, or inoperative all in the same day.
419:) which can't be demodulated and modulated by a simple relay station
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Another possibility is using a motion sensor within the key fob.
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643:
The Mobile Wave: How Mobile Intelligence Will Change Everything
98:
A push-button ignition switch in place of the immobilizer on a
1010:
832:- Ford Fiesta and Focus keyless entry fobs are now theft-proof
332:
encrypting and decrypting all relevant data signals (security)
181:
were developed by Siemens in the mid-1990s and introduced by
318:
transmitting low-frequency LF signals via the 125 kHz
207:
metal key is used for valet purposes such as locking the
423:
Furthermore, Keyless Entry / Go communicates with other
762:"DPMAregister | Designs – Registerauskunft zum Design"
737:"DPMAregister | Designs – Registerauskunft zum Design"
712:"DPMAregister | Designs – Registerauskunft zum Design"
687:"DPMAregister | Designs – Registerauskunft zum Design"
592:"DPMAregister | Designs – Registerauskunft zum Design"
667:"Vehicle theft post Sixth Consecutive Yearly Decline"
501:
SmartKey Transponder was forgotten in the rear trunk
335:
communicating relevant interface signals with other
74:
The first KeylessGo ECU of the Mercedes-Benz S-Class
2016:
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844:"Tests uncover major security risk to keyless cars"
106:Vehicles with a smart-key system can disengage the
504:More than one SmartKey is present inside the car
58:under the name "Keyless-Go" in 1998 on the W220
868:Keyless-Diebstahl - vom ADAC untersuchte Autos
1428:
986:
645:. Perseus Books/Vanguard Press. p. 100.
8:
405:measuring the response time of 125 kHz
310:The hardware blocks of a Keyless Entry / Go
78:The smart key allows the driver to keep the
934:"Keyless car crime up as gangs target vans"
298:The system works by having a series of LF (
294:Hardware blocks on the Keyless Entry/Go ECU
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27:Electronic access and authorization system
617:"Auto Express: Micra's Top of the Fobs"
555:
507:SmartKey getting lost during the drive
7:
2100:
2088:
1387:
892:Autos mit Keyless leichter zu klauen
314:ECU are based on its functionality:
842:Saarinen, Martin (18 March 2016).
435:ESCL Electric Steering Column Lock
381:time to detect illegal high values
25:
1354:Automobile auxiliary power outlet
932:Finnerty, Joe (5 February 2015).
431:that can be enabled or disabled:
2144:Automotive technology tradenames
2111:
2099:
2087:
2077:
2076:
1518:
1396:
1386:
1377:
1376:
1009:Part of a series of articles on
916:ADAC demonstrates keyless theft
768:from the original on 2022-10-21
743:from the original on 2022-10-21
718:from the original on 2022-10-21
693:from the original on 2022-10-21
623:from the original on 2008-05-20
598:from the original on 2019-07-27
563:Clark, Mitchell (31 May 2022).
417:quadrature amplitude modulation
2024:Glossary of locksmithing terms
438:EIS Electronic Ignition Switch
1:
1958:Perimeter intrusion detection
1066:Electronic instrument cluster
172:Honda Odyssey (international)
86:in the car's bodywork and an
1937:Miniature snap-action switch
1684:Time-delay combination locks
1026:Automotive navigation system
804:http://essatech.de/produkty/
463:Internal LF field dead spots
102:equipped with the Smart key.
2039:John M. Mossman Lock Museum
2029:Electromagnetic door holder
1152:Electronic throttle control
441:Central door locking system
386:third-order intercept point
2170:
1198:Automatic vehicle location
54:in 1995 and introduced by
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1897:Closed-circuit television
1516:
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1006:
966:Security Flaws of Remote
452:(Motor management system)
2154:Vehicle security systems
1781:Kensington Security Slot
1694:Tubular pin tumbler lock
641:Saylor, Michael (2012).
348:Inside Outside detection
337:electronic control units
1998:Vandal-resistant switch
1952:Passive infrared sensor
1882:Alarm monitoring center
1679:Rotary combination lock
1528:Components and hardware
1031:Automotive night vision
312:Electronic control unit
2054:Lock Museum of America
1570:Bored cylindrical lock
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39:
2082:Category:Locksmithing
1993:Ultrasonic transducer
1213:Remote keyless system
540:Remote keyless system
510:Smartkey battery low
455:BCU Body control unit
411:using a more complex
367:
356:Security requirements
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169:
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97:
73:
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1963:Photoelectric sensor
1917:Glass break detector
1816:Real-estate lock box
1715:Electromagnetic lock
1587:Single-point locking
1540:Interchangeable core
1463:Fundamental concepts
368:Relay Station Attack
188:remote keyless entry
145:keyless entry remote
2059:Musée de la Serrure
1912:Fingerprint scanner
1821:Steering-wheel lock
1756:Chubb detector lock
1664:Magnetic keyed lock
1592:Three-point locking
545:Transponder car key
450:Engine Control Unit
1699:Wafer tumbler lock
1659:Lever tumbler lock
1061:Check engine light
1041:Blind spot monitor
897:2016-03-28 at the
873:2016-03-27 at the
828:2019-04-14 at the
813:- Keyless Defender
809:2019-04-14 at the
483:inductive charging
479:inductive coupling
388:to detect illegal
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176:
174:Smart Entry System
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134:Insurance standard
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2149:Radio electronics
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2034:Exit control lock
1761:Child safety lock
1654:Disc tumbler lock
1505:Physical security
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1318:Glove compartment
1272:Child safety lock
791:Mercedes-Benz USA
209:glove compartment
110:and activate the
16:(Redirected from
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1947:Occupancy sensor
1806:Power door locks
1739:Other lock types
1708:Electronic locks
1674:Combination lock
1649:Pin tumbler lock
1637:Mechanical locks
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1208:Power door locks
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2008:Window security
1973:Pressure switch
1942:Motion detector
1869:Security alarms
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1720:Electronic lock
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899:Wayback Machine
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882:, 15 March 2016
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429:Control Systems
390:intermodulation
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342:microcontroller
320:power amplifier
305:Radio frequency
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116:ignition switch
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38:intelligent key
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2003:Water detector
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1978:Proximity card
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1177:Steering wheel
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1172:Power steering
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1162:Manettino dial
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1147:Cruise control
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1968:Piezo switch
1877:Alarm device
1844:Lock bumping
1836:Lock picking
1796:Luggage lock
1746:Bicycle lock
1730:Keycard lock
1627:
1623:Skeleton key
1575:Mortise lock
1555:Key retainer
1452:lock picking
1448:locksmithing
1217:
1132:Bowden cable
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1001:Car interior
941:. Retrieved
938:Auto Express
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851:. Retrieved
848:Auto Express
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2064:Puzzle lock
2049:Lock Museum
1983:Reed switch
1892:Card reader
1801:Night latch
1751:Bramah lock
1644:Warded lock
1480:Key control
1342:Convenience
1333:Vehicle mat
1282:Rumble seat
1267:Bucket seat
1223:VIN etching
1203:Immobiliser
1096:Speedometer
1046:Boost gauge
1019:Instruments
512:(Limp-Home)
445:Immobiliser
379:group delay
284:transponder
221:Display Key
216:Display Key
128:Ford Escape
108:immobilizer
36:Nissan Fuga
2133:Categories
1927:Key switch
1776:Door chain
1608:Berlin key
1359:Cup holder
1303:Boot liner
1262:Bench seat
1186:Anti-theft
1157:Gear stick
1106:Telematics
1101:Tachometer
1071:Fuel gauge
772:2012-08-13
747:2012-08-13
722:2012-08-13
697:2012-05-19
627:2008-01-10
602:2012-05-19
551:References
522:A test by
413:modulation
407:LC circuit
395:measuring
384:measuring
377:measuring
280:Keyless Go
275:Keyless Go
201:Keyless Go
48:electronic
1907:Dual loop
1887:Car alarm
1849:Locksport
1771:Dead bolt
1766:Crash bar
1689:Time lock
1628:Smart key
1545:Key blank
1364:Car phone
1328:Sun visor
1313:Dashboard
1287:Seat belt
1218:Smart key
1111:Tell-tale
570:The Verge
179:SmartKeys
162:SmartKeys
66:Operation
44:smart key
1988:Tripwire
1859:Snap gun
1854:Slim Jim
1826:The Club
1786:Knox Box
1618:Keychain
1580:Rim lock
1550:Key code
1510:Rekeying
1500:Password
1382:Category
1125:Controls
1081:Odometer
1056:Carputer
943:19 March
895:Archived
871:Archived
853:19 March
826:Archived
807:Archived
766:Archived
741:Archived
716:Archived
691:Archived
621:Archived
596:Archived
534:See also
392:products
249:8 Series
238:6 Series
234:5 Series
230:4 Series
226:3 Series
112:ignition
88:ISM band
84:antennas
1669:Padlock
1613:Car key
1565:Lockset
1560:Lockrod
1535:Bitting
1392:Commons
1257:Armrest
1241:Seating
921:YouTube
399:of the
196:Siemens
143:Bugatti
80:key fob
60:S-Class
52:Siemens
1932:Keypad
1454:, and
1402:Portal
1252:Airbag
1236:Safety
1142:Clutch
1051:Buzzer
649:
576:7 June
528:London
415:(i.e.
267:, and
46:is an
2105:Locks
1954:(PIR)
1791:Latch
1444:Locks
1349:Audio
1193:Alarm
1137:Brake
322:block
242:7 Ser
2117:Book
2093:Keys
1601:Keys
1011:cars
945:2016
903:ADAC
879:ADAC
855:2016
672:NICB
647:ISBN
578:2022
524:ADAC
919:on
327:ISM
245:ies
194:of
2135::
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269:X7
265:X6
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259:,
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253:X3
251:,
247:,
240:,
236:,
232:,
228:,
151:UK
118:.
42:A
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20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
