Suspension - Front Sway Bar Thumping Noise
L-SB-0028-10April 30, 2010
F-Sport Front Sway Bar Thump Noise
Service Category
Suspension
Section
Front Suspension
Market
USA
Applicability
Introduction
Some 2006 - 2010 model year GS vehicles equipped with F-Sport sway bars may exhibit a thump noise from the front suspension when driving. New front bushings are available to improve this condition. Follow the Accessory Installation procedure in TIS to replace the front bushings.
Warranty Information
APPLICABLE WARRANTY
^ F-Sport Performance parts installed as original equipment are covered under the Lexus Accessory Warranty. This warranty is in effect for 48 months or 50,000 miles, whichever occurs first, from the vehicle's in-service date.
^ F-Sport Performance parts installed by a Lexus dealer are warranted for 12 months, regardless of mileage, from the date of installation on the vehicle, or the remainder of the applicable New Vehicle Limited Warranty, whichever provides the greater coverage.
^ F-Sport Performance parts purchased over4he-counter are covered for 12 months from the date of purchase.
^ Warranty application is limited to occurrence of the specified condition described in this bulletin.
Parts Information
The revised bushings are identified with a "ZD" marking, and the original bushings are identified with an "AB" marking.
Repair Procedure
1. Replace the sway bar bushings.
Please reference the Accessory Installation procedure found on the Technical Information System (TIS):
2006 GS300 2007 - 2010 GS350 2WD F Sport Sway Bar Set PTR02-30090 Rev. A
2. Confirm the noise has been eliminated.