Chevrolet 2004 Blazer, Owner'S Manual

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Power Door Locks
If your vehicle has power door locks, the switches are
located on the driver’s and the passenger’s front
armrests. Remove the ignition key and press LOCK to
lock all the doors at once. To unlock the doors, press the
raised area to the right of the key symbol.
On four-door models use the manual door lock/unlock
lever on each rear door to lock or unlock those
doors from the rear seating area.
Programmable Automatic
Door Locks
If your vehicle has power door locks, they are
programmable.
If your vehicle has an automatic transmission it will be
programmed to have all the doors lock automatically
when the shift lever is moved out of PARK (P). All the
doors will unlock when the shift lever is moved back
into PARK (P).
On a vehicle with a manual transmission, all doors will
lock when the vehicle speed is greater than 15 mph
(24 km/h). The doors will unlock when the key is
removed from the ignition.
The following is a list of the available programming
options and how to set them after entering the
program mode:
All doors lock/Only the driver’s door unlocks: Press
the lock side of the power door lock switch once and
then the unlock side once. If your vehicle is not equipped
with remote keyless entry, you may not be able to
utilize this option.
All doors lock/All doors unlock: Press the lock side
of the power door lock switch once, and then the
unlock side twice.
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