GM SERVICE AND PARTS OPERATIONS
DCS1458
URGENT - DISTRIBUTE IMMEDIATELY


Date: October 4, 2005

Subject: Upcoming Safety Recall
05086 – Power Steering Hose

Model: 2005 Chevrolet Corvette and Silverado
2005 GMC Serra
2006 Buick Rainer
2006 Cadillac Escalade
2006 Chevrolet Corvette, Express, Silverado, Tahoe, Trailblazer and
Trailblazer EXT
2006 GMC Envoy, Envoy XL, Savana, Sierra and Yukon
2006 Hummer H2

To: All Buick, Cadillac, Chevrolet, GMC and Hummer Dealers

Attention: Dealer Operator, General Manager, Sales Manager,Used Car Manager, Service Manager, Parts Manager and Warranty Administrator


Based on information from the National Highway Traffic Safety Administration (NHTSA) web site, the media may report that General Motors will be announcing a safety recall involving certain 2005 model year Chevrolet Corvette and Silverado; GMC Sierra; and 2006 model year Buick Rainer; Cadillac Escalade; Chevrolet Corvette, Express, Silverado, Tahoe, TrailBlazer and TrailBlazer EXT; GMC Envoy, Envoy XL, Savana, Sierra and Yukon; and Hummer H2 vehicles.

Some vehicles were shipped with a high pressure power steering hose manufactured with an incorrect compound making the hose susceptible to high pressure failure when exposed to the elevated hydraulic fluid temperatures and pressures that can occur during simultaneous braking and steering inputs. When sufficient fluid is lost, power assist for steering is no longer available and vehicle directional control will depend on manual steering efforts.

In addition, braking assist will be limited to the reserve power assist system if the vehicle is equipped with the Hydroboost braking system. The braking systems on vehicles without Hydroboost are unaffected by this condition. There also is a possibility that leaking power steering fluid could flow onto the surface of exhaust system components where surface temperatures could exceed the ignition temperature of the fluid and could result in a fire without prior warning.

To correct this condition, dealers are to inspect power steering hose assemblies for specific date codes and replace suspect hoses with new parts currently released for production. These repairs will be made at no charge to customers.

Approximately 133,000 vehicles are involved of which only about 10% will require power steering hose replacement. GM is working with its suppliers to obtain the required parts as quickly as possible. Based on the anticipated schedule, we plan to begin notifying customers about this recall in November 2005.

GMVIS information for this recall will not be available until the recall bulletin is released to dealers in November 2005.

GM SERVICE AND PARTS OPERATIONS