TSB Document:

Affected Component: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM

Summary
CHEVROLET\BUICK\GMC\SATURN SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. VEHICLES MAY HAVE A CONDITION IN WHICH THE POWER BRAKE ASSIST MAY BE TEMPORARILY REDUCED WHEN THE VEHICLE IS OPERATED IN TEMPERATURES OF -5% TO -49% F (-21% TO -45% C). IN EXTREME COLD TEMPERATURES, THE OPENING OF ONE OR BOTH THE POWER BRAKE BOOSTER VACUUM CHECK VALVES MAY BE DELAYED. RESULTING IN REDUCED POWER BRAKE ASSIST. CSC LETTER WAS RECEIVED (ONLY). *PE PROGRAM IS IN EFFECT UNTIL 6/3011. *PE UPDATED ON 08.31.2011. *KB

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Date Published
JUN 01, 2011
NHTSA TSB #
10034730
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