Service information for the Hydra-matic 4L60E Automatic transmission has been divided into five Sections to assist the
technician to quickly locate the correct service, maintenance and diagnostic information.

The following provides a brief outline of each of the Sections.
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7C1 Automatic Transmission – 4L60E – General Information

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7C2 Automatic Transmission – 4L60E – Electrical Diagnosis

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7C3 Automatic Transmission – 4L60E – Hydraulic and Mechanical Diagnosis

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7C4 Automatic Transmission – 4L60E – On-vehicle Servicing

The following provides a brief outline of each of the Sections.

1.1

WARNINGS, CAUTIONS and NOTES

This Section contains various WARNINGS, CAUTIONS and NOTE statements that you must observe carefully to reduce
the risk of death or injury during service, repair procedures or vehicle operation. Incorrect service or repair procedures
may damage the vehicle or cause operational faults. WARNINGS, CAUTION and NOTE statements are not exhaustive.
GM HOLDEN LTD can not possibly warn of all the potentially hazardous consequences of failure to follow these
instructions.

Definition of WARNING, CAUTION and NOTE Statements

Diagnosis and repair procedures in this Section contain both general and specific WARNING, CAUTION and NOTE
statements. GM HOLDEN LTD is dedicated to the presentation of service information that helps the technician to
diagnose and repair the systems necessary for proper operation of the vehicle. Certain procedures may present a hazard
to the technician if they are not followed in the recommended manner. WARNING, CAUTION and NOTE statements are
designed to help prevent these hazards from occurring, but not all hazards can be foreseen.

WARNING Defined

A WARNING statement immediately precedes an operating procedure or maintenance practice which, if not correctly
followed, could result in death or injury. A WARNING statement alerts you to take necessary action or not to take a
prohibited action. If a WARNING statement is ignored, the following consequences may occur:
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Death or injury to the technician or other personnel working on the vehicle,

•

Death or injury to other people in or near the workplace area, and / or

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Death or injury to the driver / or passenger(s) of the vehicle or other people, if the vehicle has been improperly
repaired.

CAUTION Defined

A CAUTION statement immediately precedes an operating procedure or maintenance practice which, if not correctly
followed, could result in damage to or destruction of equipment, or corruption of data. If a CAUTION statement is ignored,
the following consequences may occur:
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Damage to the vehicle,

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Unnecessary vehicle repairs or component replacement,

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Faulty operation or performance of any system or component being repaired,

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Damage to any system or components which depend on the proper operation of the system or component being
repaired,

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Faulty operation or performance of any systems or components which depend on the proper operation or
performance of the system or component under repair,

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Damage to fasteners, basic tools or special tools and / or

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Leakage of coolant, lubricant or other vital fluids.

NOTE Defined

A NOTE statement immediately precedes or follows an operating procedure, maintenance practice or condition that
requires highlighting. A NOTE statement also emphasises necessary characteristics of a diagnostic or repair procedure.
A NOTE statement is designed to:
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Clarify a procedure,

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Present additional information for accomplishing a procedure,

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Give insight into the reasons for performing a procedure in the recommended manner, and / or

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Present information that gives the technician the benefit of past experience in accomplishing a procedure with
greater ease.

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