Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2005BLAZER 4WD V6-4.3L VIN XREPAIR AND DIAGNOSISTESTING AND INSPECTIONPROGRAMMING AND RELEARNINGVEHICLE PERSONALIZATIONPROGRAMMING FEATURES - AUTOMATIC DOOR LOCKS
2005 Chevrolet Blazer 4WD V6-4.3L VIN X
Programming Features - Automatic Door Locks
2005 Chevrolet Blazer 4WD V6-4.3L VIN XSECTION Programming Features - Automatic Door Locks
VEHICLE PERSONALIZATION
PROGRAMMABLE AUTOMATIC DOOR LOCKS (IF EQUIPPED)
If the vehicle has power door locks, it is equipped with a feature that enables you to program the power door locks.
The vehicle left the factory programmed to automatically lock all doors when the vehicle is shifted out of PARK (P), and all doors unlock when the vehicle is shifted into PARK (P).
If the vehicle has a manual transmission, it left the factory programmed to lock all doors when the vehicle speed is greater than 13 km/h (8 mph) for two seconds, and unlock all doors once the key is removed from the ignition.
The following instructions detail how to enter the programming mode for the power door lock feature:
1. Begin with the ignition in OFF. Then pull the turn signal/multifunction lever all the way toward you and hold it there while you perform the next step.
2. Turn the key to RUN and OFF twice. Then, with the key in OFF, release the turn signal/multifunction lever. Once you do this, you will hear the lock switch lock and unlock.
3. You are now ready to program the automatic door locks. Select one of the following four programming options and follow the instructions. You will have 30 seconds to complete programming. If you exceed the 30 second limit, The locks will automatically lock and unlock to indicate that you have left the program mode. If this occurs, repeat the procedure beginning with step 1. You can exit the program mode any time by turning the ignition to RUN. If the LOCK/UNLOCK switches are not pressed while in the programming mode, the current LOCK/UNLOCK mode will not be modified.
- The following is a list of available programming options:
- All doors lock/Only the driver's door unlocks: Press the lock side of the power door lock switch on the door panel once, and then the unlock side once.
- All doors lock/All doors unlock: Press the lock side of the power door lock switch on the door panel once, and then the unlock side twice.
- All doors lock/None of the doors unlock: Press the lock side of the power door lock switch on the door panel once, and then the unlock side three times.
- No doors lock/None of the doors unlock: Press the lock side of the power door lock switch on the door panel twice. This turns off the automatic door lock feature.
ADDITIONAL INFORMATION
Refer to Power Door Locks Description and Operation in Doors for more information about the automatic door lock feature.
RENDER: 1.0x
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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.