ISOFIX anchorages
The seats shown below are fitted with ISOFIX anchorages that comply with regulations:

* Depending on country of sale.
Each seat position has three anchor points, identified by markings:
- Two A anchorages, located between the vehicle seat backrest and seat cushion.

The 2 locks of the ISOFIX child seat engage with them.
- One B anchorage, located behind the seat, called TOP TETHER, for securing seats equipped with a top tether strap.

Front seat

Rear seats
In a frontal collision, this device limits forward tipping of the child seat.
This ISOFIX anchorage system provides reliable, secure and quick installation of the child seat in the vehicle.
To secure the child seat to the TOP TETHER:
► Remove and store the head restraint before installing the child seat in this position (refit it once the child seat has been removed).
► Pass the child seat strap behind the seat backrest, centering it between the head restraint guide holes.
► Attach the top tether strap hook to the B anchorage.
► Tighten the top tether strap.
When installing an ISOFIX child seat on the rear left seat, first move the center rear seat belt toward the middle of the vehicle so that it does not interfere with the operation of the belt.
Incorrect installation of a child seat in the vehicle compromises the child's protection in the event of a collision.
Strictly follow the installation instructions provided in the child seat's installation guide.
To find out which ISOFIX seats can be installed in your vehicle, refer to the summary table.
Recommended ISOFIX child seats
Also refer to the child seat manufacturer's installation guide for installation and removal instructions.


i-Size child seats
i-Size child seats are fitted with two locks that engage with the two A anchorages.
These i-Size child seats also have either:
- A top tether strap that attaches to the B anchorage.
- A support leg that rests on the vehicle floor, compatible with an i-Size approved seating position.
Its purpose is to prevent the child seat from tipping over in the event of a collision.
For more information on ISOFIX anchorages, refer to the corresponding section.
Installing universal, ISOFIX and i-Size child seats
In accordance with European regulations, this table shows where universal (a) seat-belt-secured child seats can be installed, as well as the larger ISOFIX and i-Size child seats at seating positions fitted with ISOFIX anchorages in the vehicle.


Rules:
- An i-Size compatible position is also compatible for R1, R2 and F2X, F2, B2.
- An R3 compatible position is also compatible for R1 and R2.
- An R2 compatible position is also compatible for R1.
- An F3 compatible position is also compatible for F2X and F2.
- A B3 compatible position is also compatible for B2.
(a) Universal child seat: child seat that can be installed in all vehicles using the seat belt.
(b) To install a rear-facing child seat at this position, the front passenger airbag must be deactivated ("OFF").
(c) Only a forward-facing child seat is permitted at this position with the front passenger airbag activated ("ON").
(d) Tilt the seat backrest to 45°, then install the child seat.
Raise the backrest until it contacts the child seat backrest.
(e) For a seat with height adjustment, set it to its maximum high position.
(f) A child seat with a support leg must never be installed at the center rear position.
(g) The vehicle seat must be in its maximum rearward position.
(h) For a universal rear-facing and/or forward-facing (U) child seat, group 0, 0+, 1, 2 or 3.
(i) For a universal forward-facing (UF) child seat, group 1, 2 or 3.
(j) Seat fitted with ISOFIX-compliant anchorages.
(k) Seat not fitted with ISOFIX-compliant anchorages.

Legends
Seat position not suitable for installing a child seat.
Front passenger airbag off.
Front passenger airbag on.
Position suitable for installing a child seat secured with the seat belt and approved as universal "rearward-facing" and/or "forward-facing" (U) for all sizes and all weight groups.
Position suitable for installing a child seat secured with the seat belt and approved as universal "forward-facing" (UF) for groups 1, 2 and 3 only.
Position approved for installing an i-Size child seat.
Position not suitable for installing a child seat with a support leg.
Position approved for installing an i-Size child seat "forward-facing".
Top Tether anchorage point at the rear of the seatback, approved for installing a universal ISOFIX child seat.
Top Tether anchorage point at the rear of the seatback, approved for installing a universal ISOFIX child seat "forward-facing".
ISOFIX child seat "rearward-facing":
- R1: ISOFIX child seat for infants.
- R2: ISOFIX child seat of reduced size.
- R3: ISOFIX child seat of full size.
ISOFIX child seat "forward-facing":
- F2X: ISOFIX child seat for toddlers.
- F2: ISOFIX child seat of reduced height.
- F3: ISOFIX child seat of full height.
Booster seat:
- B2: booster seat of reduced width.
- B3: booster seat of full width.
Position approved for installing an ISOFIX child seat.
Position not approved for installing an ISOFIX child seat.
For more information on seat adjustments, refer to the table "Installing universal, ISOFIX and i-Size child seats".
Test yourself
A quick Citroen C5 Aircross quiz: every answer comes with an explanation and a link to the manual page.