| NHTSA Recall # | 42642 |
| NHTSA Compaign # | 04V045000 |
| MFG Compaign # | 04004 |
| Manufacturer | GENERAL MOTORS CORP. |
| Supplier | CHEVROLET |
| Brand | CHEVROLET |
| Model | TAHOE |
| Model Year | 2004 |
| Component | SERVICE BRAKES, HYDRAULIC |
| Date of notification | 18/06/04 |
| Begin date of manufacuring | 01/05/03 |
| End date of manufacturing | 30/06/03 |
| Type of recall | V |
| Recall initiator | MFR |
| Report received | 04/02/04 |
| Report created | 06/02/04 |
| Regulation part number | 571 |
| FMV safety standard number | 135 |
| Estimated number of affected units | 68875 |
| Defect summary | Certain sport utility vehicles, pickup trucks, and passenger vans fail to comply with the requirements of federal motor vehicle safety standard no. 135, ? Passenger car brake systems.? Some of these vehicles were produced with an out-of-specification brake hydro-boost housing relief valve bore. |
| Consequence summary | Consequently, the valve o-ring seal may fracture. Steering efforts may be slightly increased while braking or parking. Under certain driving conditions, a fractured seal may require a slight increase in the applied brake pedal effort to achieve the same vehicle deceleration rate as prior to the seat fracture. |
| Corrective action | Dealers are to replace the hydro-boost relief valve. The recall began on june 18, 2004. Owners should contact cadillac at 1-866-982-2339; chevrolet at 1-800-630-2438; gmc at 1-866-996-9463; or hummer at 1-866-486-6376. |
| Recall notes | Gm recall no. 04004. Customers can also contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-dot (1-888-327-4236). |