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0 of 6 steps completedStep-by-Step Instructions
1 Step 1: Read the manual (yours AND the seat's)
Step 1: Read the manual (yours AND the seat's)
Both the car's and the seat's manuals. They have specific install instructions for THAT combination.
Read both car + seat manuals
30 min upfront. Skipping causes errors.
2 Step 2: Use LATCH OR seatbelt — not both
Step 2: Use LATCH OR seatbelt — not both
Most car seats have lower anchors (LATCH) AND a seatbelt path. Use one or the other, not both. Pick based on which gives tighter install.
LATCH below weight limit (typically 65 lbs combined)
Most car seats list combined weight limit on tag. Beyond that, must use seatbelt.
Seatbelt for heavier kids/seats
Often better for older bigger kids. Just as safe when correctly installed.
3 Step 3: Get installation TIGHT (the inch test)
Step 3: Get installation TIGHT (the inch test)
Push and pull base at belt path. Should move less than 1 inch in any direction. Loose install = ineffective in crash.
Warning: More than 1 inch of movement = needs to be tighter. Use full body weight to push base into seat while tightening.
Knee into seat, pull tight
Body weight to compress seat cushion, then tighten.
<1 inch movement at belt path
Push/pull at where belt secures base. Anywhere else may move more.
4 Step 4: Check recline angle (rear-facing especially)
Step 4: Check recline angle (rear-facing especially)
Rear-facing seats need correct angle so baby's head doesn't fall forward. Most seats have a built-in level indicator.
Built-in level indicator
Blue or bubble level on seat side. Adjust until in correct zone.
Pool noodle under base if vehicle slope too steep
Common technique to achieve correct recline. Approved by manufacturer for most seats.
5 Step 5: Harness snug, chest clip armpit-high
Step 5: Harness snug, chest clip armpit-high
Pinch test: harness at collarbone should not pinch any slack. Chest clip at armpit level — not on belly.
Pinch test harness at collarbone
If you can pinch any slack vertically, too loose.
Chest clip at armpit, NOT belly
Belly-level clip ejects in crash. Armpit-level keeps shoulders down.
No puffy coats under harness
Coat compresses in crash leaving slack. Coat over buckled harness instead.
6 Step 6: Get a free CPST check (mandatory)
Step 6: Get a free CPST check (mandatory)
Certified Passenger Safety Techs check installs FREE. Find at safekids.org. Most fire stations and hospitals offer. They catch errors you won't.
Most fire stations have CPSTs
Call ahead to schedule.
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