Maxi Cosi Pria LX Convertible Car Seat
The Maxi Cosi Pria LX Convertible Car Seat is a non-ISOFIX convertible car seat designed to support children from newborn to approximately 4 years of age, offering trusted Maxi-Cosi safety, compact sizing and easier everyday usability for Australian families.
The standard Maxi Cosi Pria LX uses Maxi-Cosi’s SMART Lock® seatbelt installation. This gives families flexible installation options across different vehicles while still delivering a secure and practical setup.
The Maxi Cosi Pria LX stands out for its compact external sizing, generous internal comfort and innovative SMART Guide® top tether routing system, helping make daily travel safer and easier for parents.
Key Features
- Suitable from newborn to approximately 4 years
- Non-ISOFIX convertible car seat using SMART Lock® installation
- SMART Guide® top tether routing system for easier daily use
- Compact design suitable for many smaller vehicles and 3-across configurations
- Extended rearward-facing to approximately 30 months
- SMART Lock® belt system provides a secure and clear installation path
- Air Protect® superior side impact protection technology
- Built-in rebound bar for simple and secure installation
- 11-position adjustable headrest
- Innovative V-harness system expands as the headrest is adjusted
- Bamboo wicking fabric helps keep baby cool and comfortable
- Over 200 strategically placed ventilation air vents
- 5 forward-facing recline positions and 1 rearward-facing recline position
- Magnetic harness holders for easier access
- Machine washable removable covers
- Plush newborn insert for additional support
- Maxi-Cosi Lifetime Warranty and Accident Exchange Program
- Supportive local Maxi-Cosi customer service team
Looking for the ISOFIX model? This is the standard non-ISOFIX Maxi Cosi Pria LX with SMART Lock® seatbelt installation. For ISOFIX installation with additional GCELL® side-impact technology, view the Maxi Cosi Pria LX GCELL ISOFIX Convertible Car Seat.
SMART Guide® Top Tether Technology
The SMART Guide® system is one of the standout features of the Maxi Cosi Pria LX.
- Allows the top tether to remain connected during everyday use
- Creates a clearer space when placing your child into the seat
- Helps reduce common installation mistakes
- Designed specifically for Australian family vehicles
- Makes daily use easier during daycare drop-offs and busy routines
SMART Lock® Installation System
The Maxi Cosi Pria LX uses Maxi-Cosi’s SMART Lock® seatbelt installation system instead of ISOFIX connectors.
This non-ISOFIX setup provides a secure and practical installation path while offering flexibility when moving the seat between vehicles.
Compact Design for Australian Cars
The Maxi Cosi Pria LX is one of the most compact convertible car seats available in Australia.
- Compact rearward-facing footprint creates additional front passenger space
- Narrow external width assists with many 3-across seating configurations
- Suitable for smaller SUVs, hatchbacks and family sedans
- Designed to maximise comfort for both your child and other passengers
Comfort for Everyday Travel
The Maxi Cosi Pria LX combines practical safety with comfort-focused features for everyday family driving and longer road trips.
- Bamboo wicking fabric helps regulate temperature
- 3D mesh ventilation promotes airflow and breathability
- Plush newborn insert provides additional support
- Most lay-flat rearward-facing recline in its class
- Adjustable headrest and V-harness grow with your child
- Magnetic harness holders simplify getting your child in and out
Zero Gravity Rearward-Facing Position
- Extended rearward-facing to approximately 30 months
- Flatter recline angle designed to help reduce head flop
- Supports safer and more comfortable travel for younger babies
Professional Car Seat Fitting Available
When you purchase your Maxi Cosi Pria LX from Bubs n Grubs, our Brisbane-based team can assist with professional child restraint fitting and installation guidance.
Our ACRI-trained installers regularly help families with rearward-facing setup, harness adjustment and vehicle fitment checks to help ensure your restraint is installed safely and correctly.
Learn More About Car Seat Installation
Specifications
- Product weight: 9.8kg
- Forward-facing dimensions: 43w x 65-79.5h x 49d cm
- Rearward-facing dimensions: 43w x 43h x 53d cm
- Carton weight: 11.8kg
- Carton dimensions: 45.5w x 68h x 51.5d cm
- Age range: Newborn to approximately 4 years
- Harness type: Adjustable V-harness system
- Recline positions: 5 forward-facing and 1 rearward-facing
- Extended rearward-facing to approximately 30 months
The Maxi Cosi Pria LX delivers an excellent balance of compact sizing, trusted safety and practical everyday usability for Australian families wanting a premium non-ISOFIX convertible car seat.
With SMART Guide®, SMART Lock®, Air Protect® technology, premium comfort features and Maxi-Cosi’s trusted local support, the Maxi Cosi Pria LX remains one of Australia’s most popular convertible car seats.
Fitted and Tested by Frank & Judy
The Maxi Cosi Pria LX Convertible Car Seat has been personally installed and reviewed at our Brisbane showroom. Frank, our ACRI-accredited fitter, checks the switch between rear- and forward-facing modes, harness fit and compliance with Australian Standards; Judy assesses everyday usability and how comfortably it supports your child as they grow. Nearly two decades of doing this before it reaches you.
Maxi Cosi Accident Exchange Service
In the event of a car accident, your Maxi-Cosi child restraint may have unseen damage caused by crash forces. Maxi-Cosi’s Accident Exchange Service offers new-for-old replacement support in eligible situations, helping ensure your child continues travelling safely.
- Complete the Maxi-Cosi Accident Exchange Form within 31 days of the accident
- Provide a police report or insurance claim
- Submit all required documentation before collection is arranged
- Receive a comparable replacement child restraint through Maxi-Cosi
Important Information
- Always read and follow the manufacturer’s instructions before use.
- Ensure this restraint is suitable for your child’s age, height, and weight.
- This child restraint must be installed and used correctly to provide protection.
- Do not use this restraint if it has been involved in an accident.
- Check the manufacturer’s label for the date of manufacture and expiry.
Our Price Beat Guarantee
All images are for illustration purposes only.









































vanessackeir (verified owner) 2 years ago
This is by far the best newborn seat with the smart strap that stays down when you put bub in. It’s so easy to use and also easily adjusts for height etc. very happy!
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Monique Bryden (verified owner) 2 years ago
Excellent seat, love the smart guide tether. It’s honestly a game changer in my hyundai i30. My child also seems to enjoy this seat more than his last where he would cry in the car all the time.
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Huzefa Husain (verified owner) 2 years ago
The smart guide feature is a stand-out feature that makes getting baby in and out easy. The bubs n grubs service is good, I received my order in 7 business days.
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Kirsten Mcaree (verified owner) 2 years ago
This is s super seat. Very easy to install as well as the added bonus of not having to constantly adjust the tether strap. Bub looks very comfy. Would highly recommend to others.
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Laura Cameron (verified owner) 2 years ago
Extremely happy with our purchase. Love that the tether is out of the way. Love how compact the seat is. Love how my bub looks super comfy. Excellent service from Bubs and Grubs. Very Happy!
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Rebecca Spierings (verified owner) 3 years ago
This is our second Pria, and as its baby #5 we’ve had our fair share of car seats. This one is incredible. Bub is comfy, and the lowered tether means you don’t have to adjust the seat at all.
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Stacey Mitchell Walley (verified owner) 3 years ago
Speeding shipping, lovely staff called & gave me the option of another colour to ship out that day it was easy to install. Baby is very happy and looks comfortable in it
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Ami-lea Foote (verified owner) 3 years ago
The product is great would definitely recommend it to anyone from newborn up. Installation is so easy and the lock that holds the seatbelt is great. Love the tether strap holder also great for rear facing with a newborn so easy to get child in and out of the seat
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laura.p.23 (verified owner) 3 years ago
Nice narrow seat, easy to install and use. Would recommend.
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