Honda Pioneer 1000 2017 Owner's Manual page 206

2. Return the brake fluid reservoir tank cap cover to its normal position.
Worn brake pads should be replaced. If the pads are not worn, have
your brake system inspected for leaks.
Wipe up spills immediately. Avoid contact with skin or eyes.
If brake fluid comes in contact with your eyes, wash them out with
clean water and immediately call a doctor.
If brake fluid comes in contact with your skin, wash with clean water
and, if necessary, call a doctor.
• Make sure there are no fluid leaks.
• Check for deterioration or cracks in the hoses and fittings. If the
hoses are worn or cracked, have them replaced by your dealer.