Key Lock Release
Vehicles with an automatic transmission are equipped with an electronic key lock release system.
The key lock release is designed to prevent ignition key removal unless the shift lever is in P (Park).
The key lock release is always functional except in the case of an uncharged or low voltage (less than 9&-volt) battery. If the vehicle has an uncharged battery or a battery with low voltage, try charging or jump starting the battery. See Jump Starting on page 10‑76.
If charging or jump starting the battery does not work, locate the hole below the ignition lock. Insert a flat bladed tool or another key from the key chain into the opening. When the lever can be felt, actuate the lever toward the driver, and remove the key from the ignition.
See also:
Lockout Protection
If the driver side power door lock switch is pressed when the driver door is open and the key is in the ignition, all of the doors will lock and then the driver door will unlock.
If the passenger sid ...
Safety and security
As with all vehicles built on GM's new full-size SUV platform, the '07 Yukon
family features a 360-degree safety system designed around the pillars of
occupant protection, driver control and perso ...
Battery Voltage and Charging Messages
BATTERY SAVER ACTIVE
This message displays when the system detects that the battery voltage is dropping below expected levels. The battery saver system starts reducing certain features of the vehicle ...