Maxi-Cosi PrioriFix Car Seat, Black Reflection

Product information

The PrioriFix is an easy to install toddler seat with feedback on installation to give you peace of mind that the seat has been correctly installed. A Group 1 seat (9 – 18kg) with Isofix and an easy to use colour-coded installation guide ensures the seat is safe to use.

The PrioriFix features 4 reclining positions via one-handed operation and an adjustable leg support, which has a coloured guide to indicate whether the support is at the right length. The car seat offers excellent comfort and convenience as well as safety, thanks to the side protection system, which provides support and protection from side impact.

Includes height adjustable belts and retractable buckle with practical belt hooks so you can easily place your child in the seat. Simple installation with IsoFix and/or 3-point belt, which has a belt tensioner to ensure an extremely secure fit.

All our car seats and infant carriers comply with current European regulations ECE R44.04.


  • Under no circumstances should a car seat be used on a passenger seat where there is an airbag.
  • Correct fitting of all car seats and boosters is of paramount importance to make them most effective in the event of an accident. Not all car seats fit all cars and it is important to check for fitting suitability on all cars you intend fitting the seat to, as well as re-checking if you change your car.
  • Always read the instruction booklet which comes with your car seat to achieve a safe and correct fitting, retaining the guide for future reference. We recommend fitting your car seat in advance of first using it.
  • We recommend that babies shouldn`t be left in Group 0/0+ car seats (infant carriers) for prolonged periods.



  • Please make sure that you check the car seat you choose is suitable for your car before ordering.
  • Some of our shops offer a car seat fit test, where a Nursery advisor will test the display model in your car to check that it will fit properly. Please contact your local shop to see if this service is available. Alternatively, please contact the car seat manufacturer who will be able to advise whether their model will be suitable for your car.
  • Find your nearest department store


Car seats are categorised into the following groups and it is imperative that a category is chosen so the child`s weight falls within the range indicated:

Car Seat groups:

Group Child's weight approx. age of child
0 birth up to 10kg/22lb birth up to 6-9 months
0+ birth up to 13kg/29lb birth up to 12-15 months
0+ & 1 birth up to 18kg/40lb birth to up to about 4 years
1 9-18kg/20-40lb about 9 months to 4 years
1 & 2 9-25kg/20-55lb about 9 months to 6 years
2 15-25kg/33-55lb about 4 to 6 years
1, 2, 3 9-36kg/20-79lb about 9 months to 12 years
2 & 3 15-36kg/33-79lb about 4-12 years

Note: some car seats will be approved in two or more groups.

H104-117 x W44 x D66cm
Eligible for International Delivery
Facing position
Isofix compatitble Information Isofix is a system of dedicated attachment points in the car which car seats can be locked into. We recommend checking your car handbook for further information.
Manufacturer's Warranty
2 years on seat, 1 year on fabric
Reclining positions
Suitable From
9 months
Weight Information Unpackaged weight
Weight or height of child
9-18kg or 20-40lb


Click & collect

Free from John Lewis or Waitrose shops for collection tomorrow from 2pm
355 participating John Lewis and Waitrose shops

Standard delivery in 5 working days


Corporate iForce Named Day


Next or named day delivery


Next, named or Saturday UK delivery


Next/named day UK delivery pre-10.30am


Next/named day UK delivery pre-10.30am


International delivery not available

We want you to be happy with your purchase. If you're not, depending on the type of product, you can make free returns in the UK via John Lewis shops, Royal Mail, Collect+, or MyHermes. If you need to arrange collection of large or heavy items, call us on 03456 049 049. For international returns queries, call us on +44 1698 545 454. Find out more about returns.

You'll find returns information on your delivery note. Unless faulty, we'd like you to make your return within 90 days of purchase. Exceptions apply to certain products - find out more about our refund policy.


Find out more about returning products

Q & As

Maxi-Cosi PrioriFix Car Seat, Black Reflection 4.7 5 14 14
Great sturdy car seat Really pleased with this robust car seat with isofix. It can be belted too so can transfer to grandparents car if needed. We have had two other maxi cosi car seats and have not been disappointed by any of them. 22 April 2014
Good car seat - would recommend I purchased this seat after reading a review saying it was one of the best for this age / weight group. So far the seat has been great for my son who went in it from nine months of age. Seems very comfortable and I like being able to tilt the seat back when he falls asleep. The only issue I have experienced with it is the difficulty in taking off the seat cover to wash when we had a vomiting incident. That was tricky; however once the cover was off it was very easy to wash and dry in the machine. In summary a very good seat. 05 March 2014
Well Designed, Safe Carseat We bought this carseat as it was one of the only toddler isofix carseats tested thoroughly and recommended by Which? It is lovely and comfortable for our little one and he loves to be able to finally look out the window. The whole seat is sturdy and has a lovely recline feature for when your little one goes to sleep. There are also two little clips on the side to keep the seatbelts out of the way when you put your toddler in the seat. The only cons I would say is that it can be difficult to get your fingers in mechanism to loosen the seatbelts and when tightening them it may not tighten evenly. If you are not careful when unclipping you can also catch your fingers which hurts (but you soon learn to pay attention when doing this). This is definitely a one car seat as it is pretty heavy to be moving from one car to another. But overall pretty happy with our purchase in the knowledge that our son is safe and secure in it. 04 December 2012
Very good so far We've had this seat a few weeks now and my little one took to it straight away, having previously been in a cabriofix. Easy to fit, fasten the harness and recline the seat. It is heavy but as this seat will remain primarily in the same car this isn't an issue for us. We also chose this seat as it can be used with isofix or seat belts. 02 December 2012
Description a bit misleading I am sure it's a good car seat, but we have returned it ... The reason we went for this seat is because we wanted one that was isofix compatible, but could also be easily transferred into someone else's car. We thought that because it could be fitted via the seatbelt as well as via isofix that this was possible. Yes you can fix it to almost any car but you still have to transfer the base and support leg so it takes a while to fit (compared to easy transfer of the cabriofix which is our current car seat, but needs replacing as our baby has outgrown it). As we already have a family fix base we are just going for the pearl instead which is quite a lot cheaper! 06 October 2012
Excellent You get what you pay for, excellent and safe seat and brill on time delivery. 27 July 2012
very good build quality This baby car seat was very easy to install, very good padding. Easy to place / remove the baby from the seat. Recommend that you also get it checked once fitted by a qualified fitter if you have installed it. 23 May 2012
Excellent car seat An excellent car seat. Very secure, solid and stable. The seat is well padded and the 3 reclining positions ensure maximum comfort. The isofix makes it easy to fit and helps to reduce the risk of human error. We are very happy with this seat and would recommend. 28 January 2012
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