The diagnosis and repair procedures in a GM Service Manual contain both general and specific Dangers, Warnings, Cautions, Notes or Importants. GM is dedicated to the presentation of service information that helps the technician to diagnose and repair the systems necessary for the proper operation of the vehicle, however, certain procedures may present a hazard to the technician if they are not followed in the recommended manner. Dangers, Warnings, Cautions and Notes or Importants are elements designed to prevent these hazards, however, not all hazards can be foreseen. This information is placed at strategic locations within the service manual. This information is designed to prevent the following from occurring:
DANGER Defined
When encountering a DANGER, you will be asked to take a necessary action or not to take a prohibited action. If a DANGER is not heeded, the following consequences may occur:
WARNING Defined
When encountering a WARNING, you will be asked to take a necessary action or not to take a prohibited action. If a WARNING is not heeded, the following consequences may occur:
CAUTION Defined
CAUTIONS call special attention to a necessary action or to a prohibited action. If a CAUTION is not heeded, the following consequences may occur:
NOTE or IMPORTANT Defined
NOTE and IMPORTANT statements emphasize a necessary characteristic of a diagnostic or repair procedure. NOTE or IMPORTANT statements are designed to do the following:
ABS Component Handling Warning
Warning: Certain components in the Antilock Brake System (ABS) are not intended to be serviced individually. Attempting to remove or disconnect certain system components may result in personal injury and/or improper system operation. Only those components with approved removal and installation procedures should be serviced.
Actions to Take When Working with Fuel Warning
Warning: Fuel Vapors can collect while servicing fuel system parts in enclosed areas such as a trunk. To reduce the risk of fire and increased exposure to vapors:
Approved Equipment for Collision Repair Warning
Warning: To avoid personal injury when exposed to welding flashes or to galvanized (Zinc Oxide) metal toxic fumes while grinding/cutting on any type of metal or sheet molded compound, you must work in a properly ventilated area, wearing an approved respirator, eye protection , earplugs, welding gloves, and protective clothing.
Assistant Driving Warning
Warning: An assistant should drive the vehicle while the technician checks for the location of the reported condition. Otherwise, personal injury could result.
Engine Power Messages
ENGINE POWER IS REDUCED
This message displays when the vehicle's engine power is reduced.
Reduced engine power can affect the vehicle's ability to accelerate.
If this message is on, but there is no reduction in performance, proceed to your
destination. The performance may be reduced the ...
Inflatable Restraint Passenger Presence Detection System - If Equipped
Note: The passenger presence detection system includes an ECU and a
sensor mat that can be serviced separately. After repairing or
replacing any part of the passenger presence detection system, the system must
be rezeroed in order to function properly.
The passenger presence detection system i ...
Power Steering Gear Inlet Pipe/Hose Replacement
Removal Procedure
Remove front bumper fascia. Refer to Front Bumper Fascia Replacement
Remove as much power steering fluid from the remote power steering fluid
reservoir as possible.
Place drain pans under the vehicle as needed.
Remove power steering gear inlet hose bolt (1).
...