Britax CHAPERONE User Manual page 14

12 Vehicle Compatibility
ALR (Automatic Locking Retractor) with Sliding Latch Plate
Has a latch plate that freely
1
slides along the vehicle belt
webbing.
2 Has a retractor that stops the
belt from being pulled out again
once it has been pulled out.
* The ALR in some vehicle belts
may not activate unless the belt
is pulled out at least 24 inches
(61 cm).
3 Tightens by feeding the belt
webbing back into the retractor.
ELR (Emergency Locking Retractor) with Locking Latch Plate
1 Has a latch plate that does
not allow the lap part of the
belt to become loose after it is
buckled.