SB-10043564-7544

Technical Journal
TITLE:

Harsh 5-4 Downshift and/or Rough Engagement
at Standstill
REF NO:

ISSUING DEPARTMENT:

CAR MARKET:

TJ 25994

Technical Service

United States and Canada

PARTNER:

ISSUE DATE:

3 US 7510 Volvo Cars North America
FUNC GROUP:

FUNC DESC:

4378

Software

YEAR

MONTH

DAY

2012

05

25

Page 1 of 3

“Fixed Right — First Time”
Reference: VIDA, VSTG, TJ 16761
Attachment
File Name
Attachment TJ 25994.pdf

File Size
0.1805 MB

Vehicle Type
Type

Eng

134

62

Eng
Desc
B5254T5

Sales

Body

Gear
0

Steer

Model Year
2011-2012

Plant

Struc Week
Range
0017819-0128042 201046-201204

Chassis range

CSC Customer Symptom Codes
Code
ND
NF

Description
Automatic transmission/Shifts rough or jerky/When downshifting
Automatic transmission/Shifts rough or jerky/When engaging gear at standstill

Note! If using a printed copy of this Technical Journal, first check for the latest online version.
NOTE! THIS DOCUMENT SUPERSEDES THE PREVIOUS TECHNICAL JOURNAL 25994
DATED 03-13-2012. The software upgrade for 5-4 harsh downshift and traffic light bump on
S60 T5 is now included in the normal TCM Upgrade/Reload. PLEASE UPDATE YOUR FILES.

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.
© 2012 VOLVO CARS OF NORTH AMERICA, LLC

Technical Journal 25994
DESCRIPTION:
The driver may feel a harsh shift or jerk when the automatic transmission (AW TF80SC) shifts from 5th
to 4th gear at coast-down. The driver may also feel a rough or jerky engagement when the vehicle is at a
standstill and the driver is releasing the brake to accelerate again.
PRODUCT MODIFICATION:
New sealing in the transmission from chassis number 128042 . New adaptation functionality in the
Transmission Control Module (TCM) service software (SW).
SERVICE:
If the customer’s complaint is related to the 5-4 downshift, the shift point can be monitored with a Vida
laptop to be sure the harsh shift is actually occurring during the 5-4 downshift. If the customer’s
complaint is related to the jerky engagement when the vehicle is standing still, verify that the vehicle
is at a complete stop and then release the brake. For verified customer complaints, download a TCM
Upgrade. If the car has a chassis number that is between 086037 - 119529 (original TCM hardware
P/N 30751946 or 31342781) you must also replace the TCM with P/N 31312609 and then perform a
TCM Reload. The Reload will include the latest SW. After the SW is downloaded, you must do an
adaptation of the transmission in two steps.
Step one (special adaptation instructions only for this TJ):
a. Start the adaptation drive from transmission oil temperature of 40 degrees C.
b. Perform repeated 5-4 coast downshifts without brake activated until shift quality is OK. Shortly after
each of the 5-4 downshifts occurs, increase vehicle speed again to get back into 5th gear and repeat.
c. Repeat step b also on other temperature areas.
Note! The new adaptation functionality has split the temperature, only for 5-4 shifts, into 5 different
areas: 40-65, 66-73, 74-81, 82-89, 90-110 degrees C.
It might take some time before all areas have been adapted for 5-4 coast down shifts.
Step two (normal adaptation instruction):
Perform basic adaptation of the transmission according to VIDA instruction from transmission oil temperature 66 degrees C.
The customer should be notified that some shifts for the first few days may be harsh or delayed.
The transmission will continue to adapt for the first few days after the vehicle is returned to the
customer.
VOLVO STANDARD TIMES GUIDE (VSTG) INFO:
Operation number 36004-2: Software control module downloading - See VSTG
Operation number 43715-2: Transmission Control Module (TCM) replace - See VSTG
Operation number 98398-2: Test drive acc. to TJ25994 (5-4 coast down) - 0.6 hrs
Operation number 43713-2: Automatic gearbox test drive/adaptation - See VSTG

To view TJ attachment continue to next page:
Page 2 of 3

2012-05-25

§ Volvo Car Customer Service
TJ Instruction
TJ No 25994
Date
May-12
Issue 02
Title

Harsh 5-4 downshift and/or rough engagement at standstill

TCM Part Number

TCM Serial Number