diono radian r120 user manual

The Diono Radian R120 is a premium convertible car seat designed for children from 5 to 120 pounds, featuring steel alloy frame, superior side impact protection, fold-flat design for travel, adjustable headrest, multiple recline positions, and easy installation with SuperLATCH system. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Proper Harnessing 7. Maintenance & Care 8. Travel Features 9. Safety Information 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Steel alloy frame, adjustable headrest, 5-point harness system, multiple recline positions, fold-flat design, cup holders, infant body support.

Feature	Description
Steel alloy frame	Provides maximum strength and durability
Adjustable headrest	Grows with your child from 5-120 lbs
5-point harness system	Enhanced safety with quick-adjust harness
Multiple recline positions	3-position recline for comfort
Fold-flat design	Easy storage and travel
Cup holders	Removable for easy cleaning
Infant body support	Included for smaller children
SuperLATCH system	Easy installation with built-in lock-offs
Side impact protection	Energy-absorbing foam for added safety
Compact design	Fits 3 across in most vehicles

Installation

Unpack and inspect contents. Read all instructions before installation.

Select vehicle seating position: Use rear seat only, away from active airbags.
Install with LATCH: Attach SuperLATCH connectors to vehicle lower anchors.
Install with seat belt: Thread vehicle seat belt through belt path and secure.
Check installation: Ensure seat does not move more than 1 inch side-to-side.
Adjust recline: Use recline adjuster for proper angle based on child's weight.

WARNING! Always install in vehicle rear seat. Never place rear-facing in front of active airbag.

First-Time Setup

Prepare car seat for first use with proper configuration.

Adjust harness height: Position harness at or below child's shoulders for rear-facing.
Install infant support: For children under 20 lbs, use included infant body support.
Set recline angle: Use angle indicator for proper 45-degree recline for infants.
Adjust headrest: Position headrest so top is at or above child's ears.
Thread harness: Ensure harness is properly threaded through correct slots.

CAUTION! Always check harness tightness and positioning before each use.

Specifications

Weight Range: 5-120 pounds
Height Range: Up to 57 inches
Rear-Facing: 5-50 pounds
Forward-Facing: 20-65 pounds with harness
Booster Mode: 50-120 pounds with vehicle seat belt
Dimensions: 28" H x 17" W x 13" D
Weight: 26.5 pounds
Materials: Steel alloy frame with energy-absorbing foam
Warranty: 10-year limited warranty

Controls and Settings

Access adjustment features via quick-adjust harness, headrest, and recline mechanisms.

Harness Adjustment: Quick-adjust lever at front, harness height adjustment without rethreading.

Headrest: Push-button adjustment with 12 height positions. Recline: 3-position recline adjuster with angle indicator. LATCH: SuperLATCH connectors with built-in lock-offs. Cup Holders: Removable for cleaning, slide-out design.

Proper Harnessing

Correct harness use is critical for safety.

Position child: Ensure child is sitting back in seat with bottom against seat back.
Thread harness: Harness straps through slots at or above shoulders (forward-facing).
Buckle harness: Insert buckle tongues into crotch buckle until click.
Tighten harness: Pull adjustment strap until snug (pinch test).
Position chest clip: At armpit level.

Tip: Perform pinch test - if you can pinch harness webbing, it's too loose.

Playing DVD Media

This car seat does not include DVD playback functionality. For entertainment during travel, consider separate approved vehicle entertainment systems.

Accessibility Features

Easy-adjust harness system allows quick size adjustments. Fold-flat design for storage and transport. Removable cover for cleaning accessibility.

Care & Cleaning

Remove cover according to instructions. Machine wash gentle cycle, cold water. Air dry only - no machine drying. Spot clean harness with mild soap and water.

CAUTION! Do not bleach or dry clean. Never submerge harness in water.

Regulatory Information

FMVSS 213 compliant. Meets or exceeds all federal safety standards. Certified for use in aircraft. Manufactured to strict quality standards. For support, visit www.diono.com or contact 1-855-463-4666.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Seat moves more than 1 inch	Loose installation	Reinstall with more weight in seat, check LATCH or belt tightness.
Harness difficult to adjust	Twisted straps	Ensure harness straps are flat and untwisted.
Child slouching	Incorrect recline	Adjust recline angle for child's weight and position.
Headrest not adjusting	Obstruction	Check for clothing or objects blocking adjustment mechanism.
LATCH connectors not engaging	Vehicle anchor access	Ensure clear access to lower anchors, press firmly until click.

Inspection: Regularly check for wear, damage, or expired components.

Service: 1-855-463-4666; www.diono.com