To disable the automatic door locks on a 2011 GMC Sierra, start by inserting the key into the ignition and turning it to the "On" position without starting the engine. Press the unlock button on the driver's door panel three times, then turn the ignition off. This should deactivate the automatic door locking feature. If needed, consult the owner's manual for additional details specific to your vehicle model.
The 2011 GMC Sierra-1500 has a 4-speed automatic.
The 2011 GMC Sierra-2500HD has a 6-speed automatic.
The 2011 GMC Sierra-3500HD has a 6-speed shiftable automatic.
The 2011 GMC Sierra-1500-Hybrid has a 4-speed shiftable automatic.
The 2011 GMC Sierra-1500 has 12 valves.
The 2011 GMC Sierra-1500 has a V6 engine.
The 2011 GMC Sierra-2500HD has a V8 engine.
The 2011 GMC Sierra-2500HD has 16 valves.
The 2011 GMC Sierra-3500HD has 16 valves.
The 2011 GMC Sierra-3500HD has a V8 engine.
The 2011 GMC Sierra-3500HD is a gas-powered vehicle.
The 2011 GMC Sierra-2500HD is a gas-powered vehicle.