Do you have a question about the Diono Radian 3QX and is the answer not in the manual?
Emphasizes reading manual, warnings, and proper mode selection.
Defines limits for rear-facing, forward-facing, and booster modes.
Correct harness height for different modes.
Warning about front airbags and back seat recommendation.
Lists what not to do with the restraint.
Harness snugness, expiration, and parts condition.
Canadian and US guidelines for replacement after impact.
Harnessing the child correctly.
Correct positioning for forward-facing.
Weight limits and AAP/NHTSA advice.
How to route belts for rear-facing.
Tightening and testing LATCH/UAS.
Steps for LATCH/UAS rear-facing.
Overview of LATCH and belt installation.
How to route belts for forward-facing.
Using lap/shoulder belt only.
| Weight capacity | 5 - 120 lbs |
|---|---|
| Orientation | Rear-facing, Forward-facing, Booster |
| Rear-facing Maximum Weight | 50 lbs |
| Rear-facing Minimum Weight | 5 lbs |
| Forward-facing Maximum Weight | 65 lbs |
| Booster Maximum Weight | 120 lbs |
| Booster Minimum Weight | 40 lbs |
| Height Limit (Rear-Facing) | 44 inches |
| Height Limit (Forward-Facing) | 57 inches |
| Harness Slots | 12 positions |
| Folding | Yes |
| Safety features | Side-impact protection |
| Installation | LATCH system, Seat belt |
| Harness Maximum Height | 17.5 inches |
| Material | Steel frame |











