Canada - Interior - Seat Heater Inoperative
BulletinTSB2860
Issue Date
September 23, 2010
Title
SEAT HEATER INOPERATIVE AFTER 10 MINUTES
Component
BODY ELECTRICAL
Models
'08-'10 LX570
INTRODUCTION:
Some 2008 - 2010 model year LX570 vehicles with climate controlled seats may exhibit a condition where the seat heater is inoperative after 5 - 10 minutes of use.
The seat climate controller has been improved to correct this condition.
APPLICABILITY:
PRODUCTION CHANGE INFORMATION:
This TSB applies to vehicles produced BEFORE the Production Change Effective VIN shown.
WARRANTY INFORMATION:
PARTS INFORMATION:
REPAIR PROCEDURE:
1. Remove the front seat.
Refer to the Repair Manual within E-TAS / TIS library:
- Division: Lexus
- Model: LX570
- Year: 2008/ 2009/ 2010
- Service Category: Vehicle Interior
- Section: Seat
- Keyword: Seat: Front Seat Assembly: Removal
NOTE
- The Seat Climate Control ECU MUST be replaced when replacing the Seat Climate Controller.
- Use the same procedure for the left and right seats.
2. Remove and replace the Seat Climate Control ECU.
A. Remove the 2 bolts.
B. Disconnect the connector.
C. Install the NEW Seat Climate Control ECU.
NOTE
After replacing the Seat Climate Control ECU, proceed to replacing either the seat cushion or seat back Seat Climate Controller.
3. Remove and replace the seat cushion Seat Climate Controller.
A. Remove the 3 bolts.
B. Remove the ducting in the direction indicated by the arrows.
C. Remove the clip securing the Seat Climate Controller in place.
D. Disconnect the connector.
E. Install the NEW seat cushion Seat Climate Controller.
4. Remove and replace the seat back Seat Climate Controller.
A. Remove the elastic ties and LED light as shown.
B. Remove the seat back cover.
C. Remove the 2 screws holding the Seat Climate Controller in place.
D. Disconnect the connector.
E. Remove the ducting in the direction indicated by the arrow in Figure 4.
F. Install the NEW seat back Seat Climate Controller.
5. Reinstall the seat.
Refer to the Repair Manual within E-TAS / TIS library:
- Division: Lexus
- Model: LX570
- Year: 2008/ 2009/ 2010
- Service Category: Vehicle Interior
- Section: Seat
- Keyword: Seat: Front Seat Assembly: Installation
6. Verify proper operation of seat heater
NOTE:
Issue of this Technical Service Bulletin is to ensure that proper repair information is available. IT DOES NOT CONSTITUTE AN AUTHORIZATION FOR REPAIR. Normal provisions of the formal warranty policy, as applicable, will apply.