TJ34091.1.1-2019

VOLVO CAR
SERVICE AND PARTS BUSINESS
Technical Journal
TITLE:
Lumbar support, inflates when opening door
REF NO:
ISSUING DEPARTMENT:
CAR MARKET:
TJ 34091.1.1
Technical Service
United States and Canada
PARTNER:
ISSUE DATE:
STATUS DATE:
3 US 7510 Volvo Car USA
2019-02-28
2019-03-06
FUNC GROUP:
FUNC DESC:
8524
Backrest cushion
Page 1 of 2
“Right first time in Time”
Attachment
Vehicle Type
Type
Eng
Eng
Desc
Sales
Body
Gear
224
225
234
235
236
238
246
256
Steer
Model Year
2019-2019
2019-2019
2017-2019
2017-2019
2018-2019
2018-2019
2018-2019
2016-2019
Plant
Chassis range
0000241-0001191
0000315-0016379
0000350-0616333
0000160-0095240
0000098-0075790
0000161-0099218
0000389-0266979
0000561-0454523
Struc Week
Range
201835-201839
201817-210839
201617-201839
201624-201839
201746-201839
201641-201839
201717-201839
201505-201839
CSC Customer Symptom Codes
Code
TM
UO
Description
Front seat/Power seat adjustment/folding does not work
Front seat/Automatic adjustment (memory) does not work
VST Operation Number
DTC Diagnostic Trouble Codes
Rows beginning with * are modified
Note! If using a printed copy of this Technical Journal, first check for the latest online version.
Produced in the USA and available as an electronic document. Hard copy documents are printed in USA on recycled paper containing
a minimum of 50% wastepaper and 10% post-consumer waste.
© 2019 VOLVO CAR USA, LLC
Technical Journal 34091.1.1
Text
DESCRIPTION:
* Correction of earlier information and further explanation:
1. A person sits in the driver’s seat and has adjusted lumbar support to a comfortable setting. Now,
when the driver is sitting in the seat and adding his/her weight to the lumbar support, the air pressure
in the lumbar support is measured and stored.
2. Next time the door is opened, the system adjusts the lumbar support to the stored value. But now,
no one is sitting on the seat and no body weight is added to the lumbar air pressure. Therefore, the
lumbar support will not reach the stored air pressure value, because the weight has not been added.
3. With the new software, this adjustment still happens but when the driver is sitting in the car and
starts the engine. The system will check the air pressure again and it will adjust the pressure to the
stored value. (The pump may run when opening the door, to set the stored value and then a second
adjustment could happen to reach the correct value)
SERVICE:
A new software with changed functionality has been introduced in week 40, 2018. Download a Total
Upgrade in accordance with VIDA instructions and TJ 31543.
With the new software, the automatic adjustment of the lumbar support waits until the car is started
(driver is sitting on the seat).
VEHICLE REPORT:
Yes, please submit a Vehicle Report if the service solution described in this TJ has no effect. Use
concern area “Vehicle Report” and sub concern area “Support not needed”, use function group 8524.
Page 2 of 2
2019-03-06