Cosco MIGHTYFIT LX Instructions For Use Manual
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Cosco MIGHTYFIT LX Instructions For Use Manual

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4358-7738
9.30.19
SIMPLE
SMART
FUN
MIGHTYFIT LX
CONVERTIBLE CAR SEAT
KEEP INSTRUCTIONS FOR FUTURE USE.
Read all instructions before using this car seat.
WARNING:
Failure to follow the warnings on the labels
www.coscokids.com
and in the instruction manual can result in serious injury
or death to your child.

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  • Page 1 4358-7738 9.30.19 SIMPLE SMART MIGHTYFIT LX CONVERTIBLE CAR SEAT KEEP INSTRUCTIONS FOR FUTURE USE. Read all instructions before using this car seat. WARNING: Failure to follow the warnings on the labels www.coscokids.com and in the instruction manual can result in serious injury...
  • Page 2 Overview Quick Navigation Welcome to the Cosco family and thank you for choosing this car seat, also known as a child restraint! FORWARD-FACING REAR-FACING To help you get started using your child’s new car seat, here are the 4 main tasks you’ll need to complete.

  • Page 3: Table Of Contents

    Contents Getting Started Securing Child in Car Seat ........Parts of the Car Seat ............1 Car Seat Pad Use and Care Accessory Use ...............3 Choosing Car Seat Mode ..........4 Removing Harness System ..........51 Preparing Car Seat for Child Fit .........6 Removing Seat Pad for Cleaning ........53 Rear-Facing Child Fit ............8...

  • Page 4: Parts Of The Car Seat

    Parts of the Car Seat Shell (car seat) Head LATCH: Lower Anchor Pillow Belt Storage Rear-Facing Attachment Level Lines Forward- Removable Facing Harness Belt Path Release Holders * Lever (through Recline Stand opening in pad) Rear-Facing Belt Path LATCH: Lower Anchor Harness Belt Bag May Be Adjustment...

  • Page 5: Accessory Use

    Accessory Use Choosing Car Seat Mode For Use in Rear-Facing or Forward-Facing Mode Measure your child’s weight and height (do not guess) before choosing the car seat’s mode. Cup Holders Your child’s height, weight, and age determine how the car seat should The cup holders are top-rack dishwasher safe.

  • Page 6: Preparing Car Seat For Child Fit

    Preparing Car Seat for Child Fit Fully Loosen Harness REAR-FACING MODE Straps 5-40 lb (2.3-18 kg) and 19-40 in. (48-101.6 cm) Push down on the harness release lever (through the Children under 1 year of age must ride Rear-Facing. opening in the pad) while In this car seat, your child can remain Rear-Facing until pulling out on the harness they outgrow any one of the following:...

  • Page 7: Rear-Facing Child Fit

    Rear-Facing Child Fit Head Position Release Chest Clip The top of your child’s head must be Hold each side of the chest clip. at least 1 in. (2.5 cm) below the top Press on the release button with of the car seat. your thumb and pull the chest clip apart.

  • Page 8: Forward-Facing Child Fit

    Changing Harness Height Forward-Facing Child Fit Head Position The tops of your child’s ears must be below the top of the Fully Loosen Harness Straps car seat. Push down on harness release lever (through opening in pad) while pulling out on harness straps as shown.
  • Page 9 Attach 1st Harness Strap Rethread Harness Strap Loops to Splitter Plate As Into Correct Shoulder Shown Harness Slots For Your Child The sewn ends of the harness strap loops must face towards you. Do not twist the harness strap or the harness adjustment strap.

  • Page 10: Changing Buckle Position

    Changing Buckle Position Insert Buckle’s Metal Unbuckle Harness Retainer into Slot Press in on the red button. Buckle Closest to Child Tongue Pull the buckle tongues out. The buckle must face out. Rear-Facing Mode: You must use the 1st or 2nd buckle slots.

  • Page 11: Harness System Adjustments For Smaller Infants

    Harness System Adjustments for Smaller Infants Adjusting Buckle Strap If you cannot achieve a snug harness fi t for your child, you may need to adjust the harness strap and/or buckle strap length as shown in this section. With Buckle in the 1st Slot As Shown, Turn Car Seat Over Adjusting Harness Strap If you need to move the buckle...

  • Page 12: Reclining The Car Seat

    Reclining the Car Seat This car seat has 2 positions. From Bottom of Car Seat, Rear-Facing Mode - 1 Reclined Pull Metal Retainer Towards You and Push It Up into For children between 5-22 lb Middle Slot As Shown (2.3-10 kg), the bottom level line on the shell must be parallel with the ground.

  • Page 13: Latch: Lower Anchor Use

    LATCH: Lower Anchor Use For Use in Rear-Facing Adjuster or Forward-Facing Mode Lower Anchor Hooks Lower Anchor Lower Anchor Belt Storage Attachment Belt Parts To Remove Lower Anchor Belt from Storage LATCH: Lower Anchor Bars Attachment on Car Seat Squeeze spring lever on hooks and remove hooks from storage Vehicle attachments.

  • Page 14: Vehicle Belts

    Vehicle Belts You Must Review Your Vehicle Owner’s Manual Your vehicle owner’s manual will let you know which vehicle belts and seating positions car seats Lap/Shoulder Belts can be installed in. Check How This Car Seat Will Be Locked Into Place Your vehicle’s features may be considerably different The vehicle belt must not loosen after than those pictured here.
  • Page 15 Types of Retractors Check Latch Plates Latch plates are the part of Switchable Retractor the seat belt that goes into the (most vehicles have this type) buckle. To see if the latch plate locks: This retractor can be switched to a locking mode. 1.

  • Page 16: Tether Use

    Tether Use Storing Tether Strap For Forward-Facing Mode Only When installing in the Rear-Facing Mode or when the Strap car seat is not installed in a vehicle, attach the tether hook to its storage attachment on the back of the car seat as shown. Adjuster Tether Anchors Gently tighten to remove slack.

  • Page 17: Rear-Facing Mode

    Rear-Facing Mode Rear-Facing Vehicle Belt Install 5-40 lb (2.3-18 kg) and 19-40 in. (48-101.6 cm) Before you begin installing the seat into your vehicle, did you check: Your child’s weight and height? 5-40 lb (2.3-18 kg) and 19-40 in. (48-101.6 cm) Your child’s fi...
  • Page 18 Check if Your Vehicle Belts Will Place Car Seat Rear-Facing Work With This Car Seat in Back Seat This is very important because not all vehicle belts will work with car seats. Review pages 21-24 and your vehicle owner’s manual to fi nd out what kind of vehicle belts you have and how to lock a car seat in place.
  • Page 19 Secure Child in Car Seat Buckle Vehicle Belt To properly secure your child in the car seat, see pages 48-50. Check your child’s fi t often and make any needed adjustments to the car seat as they grow. Recheck Rear-Facing Tighten Belt Level Lines Place your hand in the car seat.

  • Page 20: Rear-Facing Latch: Lower Anchor Install

    Rear-Facing LATCH: Lower Anchor Install Locate Rear-Facing Belt Path Before you begin installing the seat into your vehicle, did you check: Thread the lower anchor hook through the Rear-Facing Belt Path opening as Adjuster Your child’s weight and height? shown. 5-40 lb (2.3-18 kg) and The lower anchor belt adjuster can be 19-40 in.
  • Page 21 Tighten Belt Place Car Seat Rear-Facing in Back Seat Place your hand in the car seat. Firmly push the car seat down and back towards the vehicle seat back while pulling the free end of the belt as shown. It may be easier to tighten the belt Check Rear-Facing Level Lines by pulling back the seat pad and pulling the free end of the belt...

  • Page 22: Forward-Facing Mode

    Forward-Facing Mode 22-65 lb (10.1-29 kg) and 29-49 in. (73.6-125 cm) Secure Child in Car Seat and at least 1 year old To properly secure your child in the car seat, see pages 48-50. Check your child’s fi t often and make any needed adjustments to the car seat as they grow.

  • Page 23: Forward-Facing Vehicle Belt + Tether Install

    Forward-Facing Vehicle Belt + Tether Install If your vehicle seat’s headrest interferes with a fl ush car seat fi t, Before you begin installing the seat check your vehicle owner’s manual to into your vehicle, did you check: see if the headrest can be removed, adjusted, or if there are other possible Your child’s weight and height? seating locations to use the car seat.
  • Page 24 Route Vehicle Belt Check Belt Tightness Thread the vehicle belt through Hold the car seat at the Forward- Forward-Facing Belt Path opening as Facing Belt Path with your weaker shown. The belt goes: hand. • across the car seat; AND Push and pull the car seat from side to •...

  • Page 25: Forward-Facing Latch: Lower Anchor + Tether Install

    Forward-Facing LATCH: Lower Anchor + Tether Install Locate Forward-Facing Belt Path Before you begin installing the seat into your vehicle, did you check: Thread the hook through the Forward- Facing Belt Path as shown. Your child’s weight and height? The lower anchor belt adjuster can be 22-40 lb (10.1-18 kg) and on either side of the car seat.
  • Page 26 Place Car Seat Forward- Attach Lower Anchor Facing in Back Seat Hooks to Vehicle’s Lower Anchors in Seat Bight Make the car seat flush against the vehicle seat. The vehicle seat back Review your vehicle owner’s manual must be upright. for LATCH: lower anchor locations and lower anchor belt use.

  • Page 27: Securing Child In Car Seat

    Securing Child in Car Seat Check Belt Tightness Hold the car seat at the Forward- Place Child in Car Seat Facing Belt Path with your weaker hand. Your child’s bottom and back should be fl at against the car seat. Push and pull the car seat from side to side.
  • Page 28 Tighten Harness Finished! Pull the harness adjustment strap straight out to snugly tighten the Your child is now secured in the harness system. car seat. Check your child’s fi t often and make any needed adjustments to the car seat as they grow. Position Chest Clip Slide the chest clip up the harness straps and position it at mid-chest...

  • Page 29: Removing Harness System

    Removing Harness System Only remove the harness system to clean the seat pad. Unthread Buckle Do not unbuckle. Fully Loosen Harness Straps Push down on harness release lever (through opening in pad) while pulling out on harness straps as shown. Pull Harness Strap Out From Back of Car Seat, of Car Seat...

  • Page 30: Removing Seat Pad For Cleaning

    Cleaning and Installing Seat Pad Removing Seat Pad for Cleaning You need to remove the harness system and accessories to Cleaning Seat Pad and Accessories remove the pad from the shell. Machine wash separately with cold water on a gentle cycle. Do not To remove accessories, see page 3.

  • Page 31: Installing Harness System

    Installing Harness System Installing Harness Strap Installing Buckle Insert Buckle’s Metal Thread Harness Strap Retainer into Slot With the sewn end of harness Closest to Child strap loop facing the buckle, thread the harness strap down The buckle must face out. through the hip harness slot.
  • Page 32 Attach 1st Harness Strap Loops Thread Buckle and Chest Clip to Splitter Plate As Shown The harness strap ends go through The sewn ends of the harness strap the back of the buckle tongues and loops must face towards you. through the chest clip front to back as shown.

  • Page 33: Aircraft Information

    Aircraft Information Replacement and Expiration of Car Seat Do not risk your child’s safety. This restraint is certified for aircraft use. To keep your child as safe as possible, Dorel Juvenile Group strongly recommends replacing the car seat even after a minor crash; even if it was not occupied at the time.

  • Page 34: Child Restraint Use

    Child Restraint Use Vehicle Seating Position Never take your child out of the child restraint while the vehicle Never place a child rear-facing in a seating is moving. position with an active frontal air bag. Never leave your child unattended. Placing your child in a hot Check the vehicle owner’s manual for more child restraint may result in burns.

  • Page 35: Registration And Safety Notices

    Registration and Safety Notices Warranty Dorel Juvenile Group, Inc. (DJG) warrants this product to the Please complete the postage-paid registration card that came with original retail purchaser as follows: This product is warranted against defec- your child restraint, and send it to us. Child restraints could be recalled tive materials or workmanship for one year from the date of original purchase.

  • Page 36: Replacement Parts List

    Replacement Parts List Dorel Juvenile Group Information Thank you for choosing this car seat, also known as a child If requested color is not available, similar color will be restraint. The DJG family is committed to creating car seats substituted. Prices are subject to change. Applicable tax and shipping &...

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