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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 285 (Automatic Transmission - 2ML70 - Description And Operation) >> Description and Operation >> Automatic Transmission Hydraulic Diagrams >> Power Off High Default >> Notes

Power Off High Default: Notes

WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.

If the transmission is in Third or Fourth gear during a transmission electrical component malfunction, the transmission will default to high. All solenoids will default to their normal state. The transmission will remain in Power Off High Default until the ignition has been turned off, or the transmission is shifted to Reverse (R). When the vehicle is restarted, and shifted back into Drive (D), the transmission will then operate in Power Off Low Default. This default action enables the vehicle to be safely driven to a service center.

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