Key Battery Replacement - Mazda CX-5 Manual

Key Battery Replacement

If the buttons on the transmitter are
inoperable and the operation indicator
light does not flash, the battery may be
dead.
Replace with a new battery before the
transmitter becomes unusable.
CAUTION
Make sure the battery is installed
correctly. Battery leakage could occur if it
is not installed correctly.
When replacing the battery, be careful
not to touch any of the internal circuitry
and electrical terminals, bend the
electrical terminals, or get dirt in the
transmitter as the transmitter could be
damaged.
There is the danger of explosion if the
battery is not correctly replaced.
Dispose of used batteries according to
the following instructions.
Insulate the plus and minus terminals
of the battery using cellophane or
equivalent tape.
Never disassemble.
Never throw the battery into fire or
water.
Never deform or crush.
Replace only with the same type battery
(CR2025 or equivalent).
The following conditions indicate that the
battery power is low:
The KEY indicator light (green) flashes

in the instrument cluster for about 30
seconds after the engine is switched
OFF (for vehicles with a type A/type B
instrument cluster (page 4-21, 4-40),
Owner Maintenance
messages are displayed in the instrument
cluster).
The system does not operate and the

operation indicator light on the
transmitter does not flash when the
buttons are pressed.
The system's operational range is

reduced.
Replacing the battery at an Authorised
Mazda Repairer is recommended to
prevent damage to the key. If replacing the
battery by yourself, follow the instruction.
Replacing the key battery
1. Press the knob and pull out the
auxiliary key.
2. Twist a tape-wrapped flathead
screwdriver in the direction of the
arrow and open the cover slightly.
Cover
Maintenance and Care
Knob
6-45