V942202_2066761

Technical Service Bulletin
Transaction No:
2066761/1
Release date:
4/12/2022
94-22-02 - Parking Assist Sensors Providing False Warnings
Condition
Applicable Vehicles
Model(s)
Year
Eng. Code
Trans. Code
VIN Range
From
VIN Range To
All
2018-2022
All
All
All
All
Revision Table
Instance Number
Published Date
Version Number
2066761/1
4/12/22
94-22-02
Reason For Update
Original publication.
Customer states one of the following:
 The parking assistance sensors cannot be seen any more in the bumper or are loose.
 The surface of the parking assistance sensors is damaged.
 Various complaints about the parking assistance/parking assist steering.
 Various messages in the instrument cluster about the failure on the parking assistance.
Technical Background
External influence such as stone chipping or accident/collision.
Incorrect sensor installation/fitment.
Sensor harness correct length and connector not seated properly.
Production Solution
Not applicable.
Service
Various environmental conditions can cause false activations to be seen by the customer. In cases where
the customer is reporting several false activations (parking aid warning is displayed however nothing is
around) the below environmental and vehicle contributors should be checked.
Page 1 of 6
© 2022 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.
Technical Service Bulletin
Transaction No:
2066761/1
Release date:
4/12/2022
94-22-02 - Parking Assist Sensors Providing False Warnings
Environmental Conditions
1. Plants growing to certain heights, and curbs can lead to incorrect warnings being issued in the vicinity
of the vehicle.
2. Gravel Tracks, cobblestones, potholes, sharp bends in the road, and slopes can lead to incorrect
warnings being displayed.
3. Various types of weather/ambient conditions can lead to functional issues/limits of system operation:
 Water on the parking aid senders.
 Ice/snow on the parking aid senders or in transition to the bumper.
 Noise disturbance (pneumatic brakes of heavy goods vehicles, anti-rodent devices, or other active
ultrasound sources in the vicinity, such as parking aid systems in other vehicles.
4. Immediate surroundings
 Fluorescent tubes.
 Ramps/ Steep driveways.
Vehicle
1. Check installation of the license plate and carrier with regard to the following points:
 The size of the license plate must be identical to that of the base carrier.
 Ensure that the number plate and carrier are secured correctly at the side edges (edges bent
upwards).
2. Aftermarket parts/modifications/retrofits which are not VW Genuine Accessories could lead to false
warning being displayed.
 Trailer hitch.
 Lowered ride height.
 Spoilers.
 Bumpers.
 Anti-rodent devices
3. The parking assistance sensors are damaged by external influences.
 Mechanical damage (stone chips, scratches). (Figure 2,3)
 Dirt, ice, foreign bodies, and/or vinyl adhered to the sensor.
 Damage to the bumpers that may indicate an accident (Figure 1).
 Associated with damage the following entry can be logged in the control unit for parking assistance
(Sensor faulty).
Page 2 of 6
© 2022 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.
Technical Service Bulletin
94-22-02 - Parking Assist Sensors Providing False Warnings
Transaction No:
2066761/1
Release date:
4/12/2022
Figure 1. Damage by force (example
accident/collision).
Figure 1.
Figure 2. Stone chips causing sensor failure.
Figure 2.
Page 3 of 6
© 2022 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.
Technical Service Bulletin
94-22-02 - Parking Assist Sensors Providing False Warnings
Transaction No:
2066761/1
Release date:
4/12/2022
Figure 3. Stone impact (surface deformationdent).
Figure 3
Figure 4. Pressure check for a tight fit and correct
attachment of the parking sensors. If the sensor is
not snug or feels loose, remove the bumper and
reinstall the sensor.
Figure 4.
Page 4 of 6
© 2022 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.
Technical Service Bulletin
94-22-02 - Parking Assist Sensors Providing False Warnings
Transaction No:
2066761/1
Release date:
4/12/2022
Figure 5. Verify that the sensor is centered inside
of themounting hole (Figure 5). If the sensor is
mounted off-center, remove the bumper and
reinstall the sensor.
Figure 5.
Figure 6. Check the cables in the bumper for
damage and sufficient length (Figure 6). Cables
that are too short can cause damage to the
harness.
Figure 6. A correctly installed cable with
 If the cable is too tight, correct the routing by
moving the support clip so the cable is no
longer under tension.
sufficient length.
Figure 7. Check the connectors on the parking
sensors and the socket box for correct installation.
If the connectors are not installed properly,secure
connection.
Figure 7. Example of a parking aid sensor
connector that is not seated correctly.
Page 5 of 6
© 2022 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.
Technical Service Bulletin
94-22-02 - Parking Assist Sensors Providing False Warnings
Transaction No:
2066761/1
Release date:
4/12/2022
Re-evaluate the concern:
 If an issue was identified as environmental, or a vehicle issue from the above lists, educate the
customer on the limitations of the system.
 If all environmental and vehicle conditions have been ruled out and the concern persists, proceed as
follows:
- Isolate the vehicle to a known good area.
- Use MVB’s to determine the sensor(s) affected.
- Thoroughly check the affected sensor circuit.
- Swap affected parking aid sensors or control modules as needed.
Warranty
Incorrectly installed license plate holder or cleaning the sensors are not permitted under warranty.
Parking Assist Sensors damaged by external influences (ex: stone chipping or accident/collision),
environmental conditions & aftermarket parts/modifications cannot be claimed under warranty.
Unreasonably replaced parts will be debited.
Required Parts and Tools
No Special Parts required.
No Special Tools required.
Additional Information
All part and service references provided in this Technical Bulletin are subject to change and/or removal.
Always check with your Parts Dept. and Repair Manuals for the latest information.
Page 6 of 6
© 2022 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.