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- Fast delivery
- Purchase on account
- Easy returns
- TEST TOTAL GOOD (1.9) in the Stiftung Warentest test (issue 06/2023)
- can be used for a long period of time from 3.5 years to 12 years (from 100 cm – 150 cm body size)
- safe and easy to attach with the integrated Isofix connectors or with the vehicle seat belt
- adaptable & grows with you with a 17-way height-adjustable headrest and tilt-adjustable backrest
- 3D Groth ™ system adapts to the height, width and depth of your child
- additional side impact protection thanks to attachable side impact protection element

Growing with style
It seems as if the little ones never stop growing! No problem for the Nuna AACE LX child seat. Thanks to the 3D Growth System™ and sleek, timeless design, it adapts perfectly to every child - from pre-schoolers to almost-teens. The seat of the stylish car seat can be adjusted in three stages. In addition, the shoulder width adjusts automatically as soon as the headrest is set to one of 17 positions. With the practical cup holder, drinking bottles and cups are always within easy reach and securely fastened. The open design of the AACE LX makes it easier for your child to get in and buckle up independently. Your little one is secured with the vehicle seat belt during the journey.
The Nuna collection
Nuna inspires with its unique style, inspired by the clean lines and sophistication of Dutch design. The result is baby equipment that is simple, safe and flexible, just as young parents need it.
Growing comfort combined with maximum safety
The child seat allows absolutely no compromises - neither in terms of safety, comfort or style! The side impact protection with energy-absorbing EPP foam protects your baby's head and neck area in particular. The attachable side impact protection element offers a further safety aspect to protect your child. The integrated energy-absorbing foam significantly reduces the impact forces.
Thanks to the 3D Groth™ system, the seat can be adjusted in height, width and depth to the size of your child. When you adjust the headrest, the shoulder width also expands automatically. You can adjust the height in 17 positions with one hand. The seat can be adjusted in 3 positions to suit the length of your child's legs. The tilt-adjustable backrest adapts perfectly to the vehicle seat.
In the car, the Acce LX child seat is secured using the Isofx connectors or the vehicle seat belt. A colored belt guide ensures optimum positioning of the vehicle belt and therefore intuitive and secure fastening.
The soft and cuddly seat cover made of natural materials ensures that your child feels comfortable on every journey.
If the cover of the Nuna Acce LX i-Size child seat gets stained, you can simply remove it and wash it in the washing machine.
GRENGUARD GOLD certification
Clean air is essential for the healthy development of babies. The best way to avoid indoor air pollution is to reduce and eliminate the source of chemical emissions. As part of our commitment to responsible manufacturing, many Nuna products meet the standards for GREENGUARD GOLD certification. This means that they have been thoroughly tested for over 360 volatile organic compounds (VOCs) and chemical emissions, contributing to better indoor air quality.
- Nuna child car seat AACE LX i-Size in Thunder
- Attachable side impact protection
- Gear holder
- Isofix insertion aids
- Nuna child car seat AACE LX i-Size in Thunder
- Attachable side impact protection
- Gear holder
- Isofix insertion aids
Product group: | 3 |
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Color: | Grey |
Recommended age min.: | 42 month(s) |
Recommended age max.: | 144 month(s) |
Shipping Date: | 14.10.2025 |
Brand: | Nuna |
Car seat group: | Group 2/3 |
Features: | Side-impact protection, Cup holder |
Installation direction: | Forward facing |
Functions: | Grow-along |
Safety harness: | Vehicle belt |
European safety standard: | ECE R129 (i-Size) |
Cover removable: | Removable |
Seat width adjustability: | Steplessly adjustable |
Scope of delivery: | kindersitz |
Reclining position: | No |
Backrest adjustability: | 3x adjustable |
Headrest adjustability: | Steplessly adjustable |
Ironing: | Do not iron |
Weight: | 6.7 kg |
Tumble drying: | Do not tumble dry |
Child's height: | 100 - 150 cm cm |
Child's weight: | 15 - 36 kg kg |
Installation method: | Isofix connectors, Vehicle seat belt |
Product type: | Toddler & child car seats |
Material cover: | 100% Polyester |
Product dimensions (L x W x H): | 70.00 x 57.00 x 85.00 cm |
Test result: | Rating: GOOD (1.9) Stiftung Warentest - 06/2023 |
Washing instructions: | Machine wash at max. 30 °C |
Our product code: | 202300002457 |
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Nuna product code: | CS12301TNDGL |
EAN/GTIN: | 8720874761839 |
Supplier Name: | Joie |
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Manufacturer Name: | Nuna International B.V |
Manufacturer Street: | Van der Valk Boumanweg |
Manufacturer House Number: | 178 C |
Manufacturer Zip Code: | 2352 |
Manufacturer City: | JD Leiderdrop |
Manufacturer Country: | Niederlande |
Manufacturer Email: | info@joiebaby.com |
WARNINGS & SAFETY INSTRUCTIONS
WARNING!
NO child booster seat can guarantee complete protection against injury in an accident.
However, the proper use of this child booster seat reduces the risk of serious or fatal injuries to your child.
Always ensure that the installation instructions are followed correctly. This ensures that the booster seat provides optimal safety.
WARNING: Ensure that rigid parts and plastic parts of an advanced child restraint system are positioned and installed so that they are not trapped in a door seat or vehicle door.
To use this child booster seat in accordance with UN Regulation R129, your child must meet the following requirements.
Child’s height 100 to 150 cm (corresponding to an age of 3.5 to 12 years). Forward facing only (in the direction of travel of the vehicle).
The booster seat may not fit all vehicles for use from 135 to 150 cm.
Any straps to hold the booster seat in the vehicle must be securely fastened and must not be twisted.
The booster seat must be replaced if it has been subjected to heavy loads, e.g. in an accident or fall.
This child booster seat is intended for use only in a vehicle.
Do NOT make any changes or additions to the booster seat without approval from an approval authority. Do NOT remove any of the white EPP/EPS foam parts. Otherwise, serious safety issues may arise.
Do NOT use the seat if the surfaces are too hot due to sunlight.
Never leave the child UNATTENDED in the booster seat or in the vehicle, even for a few minutes.
Luggage and other items that could cause injury in an accident should be properly secured.
The child booster seat should not be used without the textile parts.
The textile parts of the child booster seat should only be replaced with parts recommended by the manufacturer, as they significantly affect the behaviour of the child restraint system.
Always secure your child in the booster seat, even on short journeys, as most accidents happen here.
Do NOT leave the booster seat or other items unsecured or unfastened in your vehicle. Remove the booster seat from the vehicle if it is not used regularly.
Store it in a dry place protected from sunlight.
Do not use a second-hand child booster seat whose history you do not know.
It may have structural damage or defects due to improper use/storage.
Use ONLY the load-bearing contact points described in the instructions and marked on the booster seat.
For maintenance, repair and replacement concerns, contact your dealer.
Do NOT install this child booster seat under the following circumstances:
1 - Seats facing sideways or backwards relative to the direction of travel of the vehicle.
2 - Vehicle seats that move during installation.
Remove all bags and packaging materials before use.
Our product code: | 202300002457 |
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Nuna product code: | CS12301TNDGL |
EAN/GTIN: | 8720874761839 |