isabling Auto Door Locks - keywords DIC manual mode program reprogram unlock #PIT3189C - (09/20/2006)
Models:2005-2006 Cadillac Escalade, Escalade ESV, Escalade EXT
2005-2006 Chevrolet Avalanche, Suburban, Tahoe
2005-2007 Chevrolet Silverado Classic
2005-2007 GMC Sierra Classic
2005-2006 GMC Yukon, Yukon Denali, Yukon XL, Yukon Denali XL
This PI is being updated to add fix information and model years. Please discard PIT3189B.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Some customers may comment that they are unable to over ride the automatic door locking feature. In prior model years, customers were able to select "Doors Lock Manually" from the DIC. However, starting in the 2005 model year, this selection was removed due to potential safety concerns.
Since the 2005 model year, all BCMs (Body Control Modules) are programmed from the factory to allow two personalized door lock settings:
Mode 1: All doors lock when the transmission is shifted into gear.
Mode 2: All doors lock when the vehicle speed is greater than 8 mph (13 km/h).
New BCM calibrations have been released for the 2006 and 2007 model years to allow a Mode 3: No Automatic door locking (Manual). This mode should ONLY be turned on at the owner's request. At this time no new calibration is available for the 2005 models.
To turn on this feature for a 2006 or 2007 model, reprogram the BCM with updated calibrations currently available in TIS2000. When at the "Calibration Selection" screen in TIS2000 select the "locking" tab across the top and pick the calibration listed "auto door lock option enabled on DIC". If this calibration is not selectable in TIS2000 contact Techline at 800-828-6860 for a VIC number to complete programming.
On vehicles with a DIC (RPO UK3) when using the steering wheel controls to scroll through the locking options a new "Manual" selection will be available to choose, along with the two previous selections "In Gear" and "With Speed".
On vehicles Without a DIC use the owners manual to enter the door lock programming mode in section 2. Once in the programming mode press the lock side of the drivers power door lock switch, you will hear either one, two or NO chimes. One chime indicates you are in Mode 1 (lock in gear), Two chimes you are in Mode 2 (lock with speed) and NO chimes you are in Mode 3 (Manual). Continue to press the door lock switch to scroll through the 3 different selections until you hear the desired mode and then exit the programming mode by turning the ignition key on.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
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