The Lexus RX350 is a popular choice among midsize SUVs in Europe, known for its elevated height and spacious rear seating area, offering excellent comfort for families. From a child car seat installation perspective, the RX350 provides generous interior room that allows for stable and level installation, without seat tilting or interference from surrounding components.
In this guide, we’ll walk you through how to install a child car seat or booster seat in the Lexus RX350 using PERO safety seats, along with important tips to ensure safety, compatibility, and ease of use.
Lexus RX350 Child Car Seat Installation Guide
The Lexus RX350’s back seats come with isofix lower anchors. In this vehicle, the ISOFIX style uses the Seat Gap-Style, meaning you can access the lower anchors by reaching into the gap between the seat cushions.
- Vehicle Compatibility: Lexus RX350
- ISOFIX Lower Anchor Style: Seat Gap-Style
- Ease of First-Time ISOFIX Installation: ★★★★☆
- Ease of First-Time Seat Belt Installation: ★★★★★
- Installation Method: Compatible with both ISOFIX and vehicle seat belt
- Fits
- Does not fit
- Fits with Modifications
| Number of seats | Booster Seat | High-Back Child Seat |
|---|---|---|
| 1 Seat | ○ | ○ |
| 2 Seats | ○ | ○ |
| 3 Seats | ○ | ○ |
Lexus RX350 Interior Overview
Summary
| Item | Lexus RX350 Configuration |
|---|---|
| Lower Anchors | ● ISOFIX: Included ● Guider: None ● Metal Angle: Horizontal ● Style: Seat Gap-Style |
| Top Tether Anchor | ● Location: Bottom of back rear seat ● Style: Covered Style |
| Headrest | ● Style: Cylindrical Rods (Note: screwdriver needed to lift) |
Lexus RX350 Lower Anchors
- The ISOFIX lower anchors are not easily visible, but installing guiders can make the installation easier.
Lexus RX350 Top Tether Anchor
Lexus RX350 Headrest
Lexus RX350 with PERO Installation Example
The Lexus RX350 measures has a length of 489 cm and width of 192 cm, offering a spacious and comfortable rear seating area. When using slim-design PERO child safety seats, there is still room to accommodate an additional passenger or another car seat. Thanks to the vehicle’s extended length, rear-facing installation has minimal impact on front seat comfort—making it a practical and family-friendly option for multiple seat configurations.
WIDFIX ISOFIX Extender Installation on Lexus RX350
Summary
| Compatible with PERO Car Seats | WIDFIX PLUS | WIDFIX |
|---|---|---|
| ● Ni ISOFIX Booster ● Ni Plus ISOFIX Car Seat ● i-Size Cento ISOFIX Car Seat ● Luce90 ISOFIX Car Seat ● Cuore012 ISOFIX Car Seat | Maximum Extension: One Side: 8.5cm (3.34in) Both Sides: 17cm (6.69in) | Maximum Extension: One Side: 7cm (2.75in) Both Sides: 14cm (5.51in) |
Lexus RX350 WIDFIX Installation
- Figure 1: Two PERO i-Size Cento car seats (without WIDFIX installed)
- Figure 2: Two PERO i-Size Cento car seats with 2 WIDFIX PLUS ISOFIX extenders (Total Extension: 17 cm)
- Figure 3: Three PERO i-Size Cento car seats with 2 WIDFIX PLUS extenders (Total Extension: 17 cm)
- Figure 4: Two PERO i-Size Cento car seats + one PERO NI booster seat with 2 WIDFIX PLUS extenders (Total Extension: 17 cm)
- Figure 5: Two PERO i-Size Cento car seats + passenger seated in the middle (without WIDFIX installed)
- Figure 6: Two PERO i-Size Cento car seats with 2 WIDFIX PLUS ISOFIX extenders + passenger seated in the middle (Total Extension: 17 cm)
- Figure 1: Two PERO Cuore012 car seats (without WIDFIX installed)
- Figure 2: Two PERO Cuore012 car seats with 2 WIDFIX PLUS ISOFIX extenders (Total Extension: 17 cm)
- Figure 3: Two PERO Cuore012 car seats + one PERO i-Size Cento car seats with 2 WIDFIX PLUS extenders (Total Extension: 17 cm)
- Figure 4: Two PERO Cuore012 car seats + one PERO NI booster seat (without WIDFIX installed)
- Figure 5: Two PERO Cuore012 car seats + passenger seated in the middle (without WIDFIX installed)
- Figure 6: Two PERO Cuore012 car seats with 2 WIDFIX PLUS ISOFIX extenders + passenger seated in the middle (Total Extension: 17 cm)
Lexus RX350 WIDFIX Extender Installation Video
3 PERO car seats
Recommended Car Seats for Lexus RX350
Here’s the recommended list of PERO slim car seats and booster seats, thoughtfully selected for families driving a Lexus RX350.
| Booster Seats | Compatibility | Dimensions | Car Seats Details |
|---|---|---|---|
| PERO NI ISOFIX Booster | ● 3-12 years ● 15-36kg (33-79lb) | ● 3.7kg (8.2lb) ● 44*47.5*36cm (17.3*18.7*14.2in) | ● GII+GIII ISOFIX Convertible Seats ● ISOFIX and Belt Installation ● Slide-out cup holders on both sides● Convertible small-back design ● Extra-thick foam for superior hip comfort ● Removable, breathable fabric cover for easy cleaning ● Belt guider prevents the seat belt from riding up or harming the child |
| Car Seats | Compatibility | Dimensions | Car Seats Details |
|---|---|---|---|
| PERO Ni Plus ISOFIX Car Seat | ● 3-12 years ● 15-36kg (33-79lb) ● 98-137cm (38.58-53.93in) | ● 5.7 kg (12.6lb) ● 44*49*65cm (17.3*19.3*25.6in) | ● GII+GIII ISOFIX Convertible Seats ● ISOFIX and Belt Installation ● Slide-out cup holders on both sides● 7-position adjustable headrest for growing kids● Extra-thick foam for superior hip comfort● Breathable, removable fabric cover for easy care● Belt guider prevents the seat belt from riding up or harming the child● Convertible high-back design—can switch with the NI ISOFIX booster's low-back cushion |
| PERO i-Size Cento ISOFIX Car Seat | ● 3-12 years ● 15-36kg (33-79lb) ● 98-150cm (38.58-59.05 in) | ● 7kg (15.4lb) ● 47*43*61.5cm (18.5*16.9*24.2 in) | ● GII+GIII ISOFIX Convertible Seats ● Easy installation with ISOFIX or seat belt ● Built-in 105° adjustable reclining backrest● Advanced side impact protection (SIP+)● Extra-thick foam for superior hip comfort● Removable, breathable fabric cover for easy cleaning● Secure seat belt guider with lock-in ability● EU safety regulation ECE R129 is followed |
| PERO Luce90 ISOFIX Car Seat | ● 9 months-12 years ● 9-36kg (19-79 lb) ● Harness: under 110cm (43.30 in) ● Three-point belt: 98-137cm (38.58-53.93 in) | ● 7.8kg (17.1 lb) ● 44*47.5*36cm (17.7*17.7*24.8 in) | ● GI+GII+GIII ISOFIX Car Seat● Compatible with both ISOFIX and seat belt installation● Harness with shoulder straps that adjust automatically with the headrest● Top tether for added stability● Reinforced head support with extra-thick cushioning for better impact protection● Soft, shock-absorbing pearl cotton for added comfort● Removable, breathable fabric cover with cozy padding● Belt guider prevents the seat belt from riding up or harming the child● Detachable cup holders |
| PERO Cuore012 ISOFIX Car Seat | ● 0-7 years ● Front-facing：9-25kg (19.8-55.1 lb) ● Rear-facing：0-13kg (0-28.6 lb) | ● 13.7kg (30.2lb) ● 45*51*62.5cm (17.7*20*24.6 in) | ● G0+GI+GII ISOFIX Car Seat● Easy ISOFIX installation● Rear- and forward-facing options● Harness with shoulder straps that adjust automatically with the headrest● Top tether for added safety● Rear-facing 165* recline and forward-facing 90* - 129* recline● Reinforced head support with extra-thick cushioning for better impact protection● Soft, shock-absorbing pearl cotton for added comfort● Breathable, removable fabric cover with cozy padding and newborn insert● Belt guider prevents the seat belt from riding up or harming the child● Two-piece design for easy storage and transport |
Consultation & Support Services
Lexus RX350 owners have access to a consultation. PERO provides online customer service with picture checking. Additionally, if you go to our store or distributors we will demonstrate and teach you how to properly install. We provide accessible parking at each location and maintain plenty of stock at each store.
TEL: +886 906-696258
Email: info@kidspero.com
LINE:ID kidspero or TEL ID: 0906-696258
Service Time: Mon to Sat 10:00~16:00
