Toyota issued another recall today (October 21, 2010) that effects 1.5M autos for brake fluid and fuel pump problems. Half of the cars affected are in the U.S. marketplace. The manufacturer recall includes the 2005 and 2006 Avalon, 2004-2006 Highlanders, 2004-2006 RX330 and 2006 GS300, IS250 and IS350. The remaining automobiles were sold in Europe and Japan.
Brakes fluid could leak if the owner replaces or adds fluid that does not contain polymers.
According to Toyota:
The polymers act as lubricants for certain brake system components. If during vehicle maintenance, brake fluid is used that does not contain such polymers or only small amounts, a part of the internal rubber seal (brake master cylinder cup) located at the end of the brake master cylinder piston may become dry and may curl during movement of the piston. If this occurs, a small amount of the brake fluid could slowly leak from the brake master cylinder into the brake booster, resulting in illumination of the brake warning lamp.
Owners will be notified by mail beginning in November if their car requires maintenance. This repair will be performed at no charge to the customer.
Owners that have previously paid for the replacement of the Brake Master Cylinder due to brake fluid leakage from the rubber seal (Brake Master Cylinder Cup) to address this specific condition should refer to the owner letter for instructions regarding reimbursement consideration.
As part of the recall, Toyota and Lexus dealers will replace the brake master cylinder cup with a newly designed one at no charge to the vehicle owners. The repair will take approximately 2 hours.