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Graco Argos 80 Elite - installed with seatbelt using lockoff

CarseatBlog’s Carseat Lockoff Guide

As LATCH weight limits shrink due to new federal standards, more and more carseats require using the seatbelt once the child exceeds a certain weight. The problem with seatbelt installations is that most parents have no idea how to lock the seatbelts in their vehicle in order to properly install a carseat or infant seat base. Ask the average parent or caregiver what a switchable retractor is and you’ll probably get a very confused look in response. A what?? This is why every car seat in North America should come with a built-in lockoff! If you are installing with a seatbelt instead of lower LATCH anchors and your carseat has a lockoff device – use it and you will never have to worry about understanding pre-crash locking features on vehicle restraint systems.

Function of built-in lockoff device: A lockoff device can serve more than one function but its main purpose is to cinch or clamp the seatbelt in such a way that it cannot loosen and your tight carseat installation stays tight!  

Current list of carseats that feature lockoff(s)

Rear-Facing Infant Seats
Baby Jogger City GO 
Britax B-Safe (aka BOB B-Safe)
Britax B-Safe 35 & B-Safe 35 Elite
Chicco KeyFit & KeyFit 30
Combi Shuttle
GB Asana 35 & Asana 35 AP
Graco SnugRide 35 Classic Connect
Graco SnugRide 35 LX Click Connect
Graco SnugRide 40 Click Connect
Hauck ProSafe 35
Nuna Pipa
Orbit Baby G3 Infant
Peg-Perego Viaggio 4-35
phil&teds Alpha
Safety 1st onBoard 35 Air & onBoard 35 Air+
UPPAbaby Mesa
Urbini Petal & Sonti
Convertible Seats
Britax  Advocate G4.1; Boulevard G4.1; Marathon G4.1Roundabout G4.1
Britax ClickTight convertibles (all models)
Chicco NextFit
Clek Foonf
Clek Fllo
Combi Coccoro
Graco Smart Seat
Orbit Baby Toddler
Recaro All convertible models (forward-facing lockoff only)
Forward-Facing Combination Seats
Britax Frontier ClickTight
Britax Pinnacle ClickTight
Graco Nautilus 80 Elite
Graco Nautilus 65 DLX
Graco Argos 80 Elite (Discontinued)
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Lockoffs on Infant Seat Bases

There are different types of lockoffs that require different routing so make sure you are following the directions that came with your carseat. Never assume anything. Below we discuss the two most common types of lockoff systems.

Lockoff just for shoulder belt portion of the lap/shoulder belt

  • Bases with these types of lockoffs will have a lockoff on each side of the base but you only use one lockoff–  on the side where the shoulder belt goes up to the retractor.

keyfit base lockoff

keyfitlockoffsfinal

Two lockoffs on base but only use one of them!

 

Single lockoff device

  • clamps both portions of the seatbelt (lap belt and shoulder belt)

Graco SR35 lockoff

Nuna-Pipa-installed-with-seatbelt-lockoff

Onboard35AirBase

 

Convertible seats with lockoffs will usually have them for both rear-facing and forward-facing beltpaths

Britax G4 convertible lockoffs

Britax-Pavilionlockoffs

Chicco NextFit lockoffs (just for shoulder belt portion)

nextfitlockoffopen  nextfitlockoffclosed

Clek Foonf & Fllo lockoffs (different types of lockoffs for RF & FF beltpaths)

Clek Fllo FF lockoff Clek Fllo RF lockoffs

 

Forward-Facing Combination Seats Lockoffs

Graco Nautilus 80 Elite, Nautilus 65 DLX model & Argos 80 Elite

nautiluselitelockoff

 

ClickTight Technology (available on certain Britax models): The ClickTight compartment acts as a lockoff too!

Britax Frontier 90 - Desert PalmBritax Advocate CT - open CT compartment stock