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HOMESERVICE MANUALSCHEVROLET2009TAHOE BASE, 4.8 CREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 21 (HYBRID COOLING SYSTEM)REPAIR INSTRUCTIONSGENERATOR BATTERY VENT FAN RELAY REPLACEMENT
2009 Chevrolet Tahoe Base, 4.8 C

Generator Battery Vent Fan Relay Replacement

2009 Chevrolet Tahoe Base, 4.8 CSECTION Generator Battery Vent Fan Relay Replacement
WARNING: This page is about a different variant/trim than selected.
Fig 1: Locating Generator Battery Vent Fan Relay
GM1971860Courtesy of GENERAL MOTORS CORP.
Callout Component Name
WARNING: 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 and the front cover. Refer to Drive Motor Battery Case Upper Cover, Front Cover, and Right Side Cover Replacement .
1 Generator Battery Vent Fan Relay
Procedure:: 
After relay has been replaced, enable the HV system. Refer to High Voltage Enabling .
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.