GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 Sierra Denali 🢒 Hybrid 🢒 Hybrid Energy Storage 🢒 Battery Vent Tube Replacement

Object Number: 1869666 Size: MF

Callout

Component Name

Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection. Personal Protection Equipment (PPE) and proper procedures must be followed.

The High Voltage Disabling procedure will perform the following tasks:

   • Identify how to disable high voltage.
   • Identify how to test for the presence of high voltage.
   • Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures must be followed.
Failure to follow the procedures exactly as written may result in serious injury or death.

Preliminary Procedures

  1. Disable the high voltage at the drive motor generator battery. Refer to High Voltage Disabling.
  2. Remove the upper cover. Refer to Drive Motor Battery Case Upper Cover, Front Cover, and Right Side Cover Replacement.
  3. Remove the battery cooling air outlet duct. Refer to Drive Motor Battery Cooling Air Outlet Duct and Front Air Outlet Duct Replacement.

1

Battery Vent Tube

2

Battery Vent Y Hose Retainer and Y Hose

3

Battery Vent Tube Assembly

4

Battery Vent Tube Upper Front Assembly

5

Battery Vent Tube Upper Rear Assembly

Procedure:

After the vent tube assemblies have been replaced and the re-assembly of the drive motor generator battery, enable the HV system. Refer to High Voltage Enabling.