Polaris ACE 150 EFI (2018 year). Manual - part 20

85

MAINTENANCE

Lights

Tail Light Lamp Replacement

If the brakelight doesn't work, the light 

assembly may need to be replaced.
1. Disconnect the tail light from the 

harness.

2. Remove attachment nuts holding light 

assembly.

3. Install new light assembly and secure 

with attachment nuts.

4. Reconnect the light harness.
5. Start the engine to make sure the lights 

come on. If the lights do not operate, 

your POLARIS dealer can assist.

86

MAINTENANCE

Vehicle Immersion

NOTICE: If your vehicle becomes immersed, major engine damage can result 

if the machine is not thoroughly inspected. Take the vehicle in for 

service before starting the engine. Your POLARIS dealer can 

provide this service.

If it’s impossible to take your vehicle to a dealer before starting it, 

follow the steps outlined below.
1. Move the vehicle to dry land.
2. Check the air box. If water is present, dry the air box and replace 

the filter with a new filter. Thoroughly dry the air pre-filter. See 

page 76.

3. Remove the air box drain plug to drain any water. Reinstall the 

drain plug securely.

4. Remove the spark plug.
5. Turn the engine over several times using the electric start.
6. Dry the spark plug and reinstall it, or install a new plug.
7. Attempt to start the engine. If necessary, repeat the drying 

procedure.

8. Take the vehicle in for service as soon as possible, whether you 

succeed in starting it or not. Your POLARIS dealer can provide 

the required service.

9. If water has been ingested into the transmission follow the 

procedure on page 75 for drying.

87

MAINTENANCE

Battery

Improperly connecting or disconnecting battery cables can result in an 

explosion and cause serious injury or death. When removing the battery, 

always disconnect the negative (black) cable first. When reinstalling the 

battery, always connect the negative (black) cable last.

Battery electrolyte is poisonous. It contains sulfuric acid. Serious burns can 

result from contact with skin, eyes or clothing.
Antidote:
External: Flush with water.
Internal: Drink large quantities of water or milk. Follow with milk of magnesia, 

beaten egg, or vegetable oil. Call physician immediately.
Eyes: Flush with water for 15 minutes and get prompt medical attention.
Batteries produce explosive gases. Keep sparks, flame, cigarettes, etc. away. 

Ventilate when charging or using in an enclosed space. Always shield eyes 

when working near batteries. KEEP OUT OF REACH OF CHILDREN.

Always keep battery terminals and connections free of corrosion. If 

cleaning is necessary, remove the corrosion with a stiff wire brush. 

Wash with a solution of one tablespoon baking soda and one cup 

water. Rinse well with tap water and dry off with clean shop towels. 

Coat the terminals with dielectric grease or petroleum jelly. Be careful 

not to allow cleaning solution or tap water into a conventional battery.

WARNING

WARNING

88

MAINTENANCE

Battery

Battery Removal

1. Access the battery through the left rear 

wheel well. 

2. On conventional batteries, remove the 

battery vent tube (sealed batteries do not 

have a vent tube).

3. Disconnect the black (negative) battery 

cable first.

4. Disconnect the red (positive) battery cable 

last.

5. Lift the battery out of the vehicle. Be 

careful not to tip a conventional battery sideways, which could 

spill electrolyte.

NOTICE: If electrolyte spills, immediately wash it off with a solution of one 

tablespoon baking soda and one cup water to prevent damage to 

the vehicle.

Battery