Affected Component: ENGINE AND ENGINE COOLING

Date Published

JUL 01, 2003

NHTSA TSB #

10012554

TSB Document

• Sorry, the NHTSA has not posted this TSB document yet.

You can still get the detailed info from Hummer for this TSB. Call your local Hummer dealer's service department & ask for a copy of TSB# 030139010.

Summary

INSUFFICIENT HVAV SYSTEM COOLING HISSING NOISE ON ENGINE SHUT OFF. *EH