Interior - Front Seat Back Groaning Noises When Adjusted
L-SB-0044-11July 20, 2011
Groan Noise from Front Seat Back During Adjustment
Service Category
Vehicle Interior
Section
Seat
Market
USA
Applicability
Introduction
Some 2010 - 2011 model year IS 250C/350C vehicles may exhibit a groan noise during front seat back adjustment. This condition may be present on both front seats. A revised seat adjuster assembly has been developed to address this condition.
Production Change Information
This TSIB applies to vehicles produced BEFORE the Production Change Effective VINs shown.
Warranty Information
Parts Information
Required Tools & Equipment
Repair Procedure
1. With the seat unoccupied confirm the condition by adjusting the front seat back position.
^ If a groan noise is present this TSIB applies.
^ If not follow the Repair Manual for additional diagnostics.
2. Remove the seat adjuster assembly.
Refer to the Technical Information System (TIS) applicable model and model year Repair Manual:
^ 2010 IS 250C/350C:
Vehicle Interior - Seat - "Seat Front Seat Assembly: Removal / Disassembly"
^ 2011 IS 250C/350C:
Vehicle Interior - Seat - "Seat Front Seat Assembly: Removal / Disassembly"
3. Install the NEW seat adjuster assembly.
Refer to TIS applicable model and model year Repair Manual:
^ 2010 IS 250C/350C:
Vehicle Interior - Seat - "Seat Front Seat Assembly: Removal / Disassembly"
^ 2011 IS 250C/350C:
Vehicle Interior - Seat - "Seat Front Seat Assembly: Removal / Disassembly"
4. Install the front seat belt.
A. Install the front seat belt anchor plate.
B. Install the front seat belt inner and torque to the following specifications.
Torque: 42 N*m (4.28 kgf*cm, 31 ft*lbf)
5. Install the seat assembly.
Refer to TIS applicable model and model year Repair Manual:
^ 2010 IS 250C/350C:
Vehicle Interior - Seat - "Seat Front Seat Assembly: Installation"
^ 2011 IS 250C/350C:
Vehicle Interior - Seat - "Seat Front Seat Assembly: Installation"
6. Confirm front seat back adjuster operation.