Mazda MX-5 2024 Owner's Manual page 336

What to Do in Case of Emergency
Engine Does Not Start
Taking Action with Depleted Lead-acid Battery
The lead-acid battery might be depleted if the following conditions occur.
The engine does not start.

The horn sound is weak or it does not sound.

The brightness of the lights is extremely low.

Using commercially available booster cables, connect the lead-acid battery of the
booster vehicle's battery to the lead-acid battery of your vehicle and start the engine.
Jump-starting is dangerous if done incorrectly. Therefore, follow the procedure
carefully. If you feel unsure about jump-starting, we strongly recommend that you
have a competent service technician do the work.
WARNING
Read the following precautions carefully before using the lead-acid
battery or inspecting to ensure safe and correct handling.
Always wear eye protection when working near the lead-acid battery.
Working without eye protection is dangerous. Lead-acid battery fluid contains
SULFURIC ACID which could cause blindness if splashed into your eyes. Also,
hydrogen gas produced during normal lead-acid battery operation, could ignite and
cause the lead-acid battery to explode.
Wear eye protection and protective gloves to prevent contact with
lead-acid battery fluid.
Spilled lead-acid battery fluid is dangerous.
Lead-acid battery fluid contains SULFURIC ACID which could cause serious injuries if
it gets in eyes, or on the skin or clothing. If this happens, immediately flush your eyes
with water for 15 minutes or wash your skin thoroughly and get medical attention.
Always keep lead-acid batteries out of the reach of children.
Allowing children to play near lead-acid batteries is dangerous. Lead-acid battery
fluid could cause serious injuries if it gets in the eyes or on the skin.
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MX-5_8ME4-EA-23L_Edition1_new 2023-8-31 16:47:34