Dorel Juvenile Group GMA 2010 Instruction Manual page 31

Follow the manufacturer's instructions at all times. Before
removal, ensure you have carefully noted the way which the
various parts are attached to the seat so as to facilitate
reassembly.
Your child car seat is equipped with a buckle designed to
give your child maximum protection during proper use.
When working properly, your buckle should always fasten with
an audible "click".
If sticky liquids such as baby food, fruit juice, etc, get into the
buckle it may become sluggish and you will not hear a "click".
The buckle should be cleaned by following the steps below.
Place the buckle unit under running water (40 degrees Celsius)
Let the water flow through the mouth of the buckle for one
minute. Simultaneously latch and unlatch the tongues into the
buckle several times until a strong audible "click" is heard.
If you still cannot hear a strong audible "click" after latching
the buckle several times, then repeat the process again.
DO NOT oil any part of the buckle and allow buckle to dry.
IMPORTANT - Only genuine replacement parts supplied by
IGC Dorel Pty Ltd can be used on the Convertible Booster
Seat.
31