2021 Kia K5 4-door sedan (2024)

Small overlap front: driver-side

Rating applies to 2021-24 models

Tested vehicle: 2021 Kia K5 LXS 4-door

The Kia K5 was introduced in the 2021 model year, replacing the Optima nameplate in the Kia lineup. Driver-side small overlap frontal ratings are assigned by the Institute based on a test of a 2021 K5 conducted by Hyundai/Kia as part of frontal crash test verification.

Overall evaluation

G

Structure and safety cage

G

Driver injury measures
Head/neck

G

Chest

G

Hip/thigh

G

Lower leg/foot

G

Driver restraints and dummy kinematics

G

Technical measurements for this test

Measures of occupant compartment intrusion on driver side

Test IDVTN2012
Lower occupant compartment
Lower hinge pillar max (cm)3
Footrest (cm)4
Left toepan (cm)3
Brake pedal (cm)4
Parking brake (cm)
Rocker panel lateral average (cm)1
Upper occupant compartment
Steering column2
Upper hinge pillar max (cm)1
Upper dash (cm)2
Lower instrument panel (cm)3

Driver injury measures

Test IDVTN2012
Head
HIC-1578
Peak gs at hard contactno contact
Neck
Tension (kN)0.8
Extension bending moment (Nm)7
Maximum Nij0.18
Chest maximum compression (mm)23
Femur (kN)
Left0.4
Right0.1
Knee displacement (mm)
Left1
Right1
Knee-thigh-hip injury risk (%)
Left0
Right0
Maximum tibia index
Left0.45
Right0.33
Tibia axial force (kN)
Left1.9
Right0.1
Foot acceleration (g)
Left55
Right32

How the driver-side small overlap front test is conducted

Small overlap front: passenger-side

Rating applies to 2021-24 models

Tested vehicle: 2021 Kia K5 LXS 4-door

The Kia K5 was introduced in the 2021 model year, replacing the Optima nameplate in the Kia lineup. Passenger-side small overlap frontal ratings are assigned by the Institute based on a test of a 2021 K5 conducted by Hyundai/Kia as part of frontal crash test verification.

Overall evaluation

G

Structure and safety cage

G

Passenger injury measures
Head/neck

G

Chest

G

Hip/thigh

G

Lower leg/foot

G

Passenger restraints and dummy kinematics

G

Driver injury measures
Head/neck

G

Chest

G

Hip/thigh

G

Lower leg/foot

G

Driver restraints and dummy kinematics

G

Technical measurements for this test

Measures of occupant compartment intrusion on passenger side

Test IDVTP2016
Lower occupant compartment
Lower hinge pillar max (cm)4
Footrest (cm)7
Right toepan (cm)4
Center toepan (cm)2
Rocker panel lateral average (cm)1
Upper occupant compartment
Center dash (cm)1
Upper hinge pillar max (cm)2
Upper dash (cm)2
Right lower dash (cm)3

Passenger injury measures

Test IDVTP2016
Head
HIC-1583
Peak gs at hard contactno contact
Neck
Tension (kN)1.0
Extension bending moment (Nm)14
Maximum Nij0.20
Chest maximum compression (mm)23
Femur (kN)
Left0.2
Right0.5
Knee displacement (mm)
Left0
Right1
Knee-thigh-hip injury risk (%)
Left0
Right0
Maximum tibia index
Left0.32
Right0.61
Tibia axial force (kN)
Left0.3
Right2.1
Foot acceleration (g)
Left44
Right97

Driver injury measures

Test IDVTP2016
Head
HIC-1574
Peak gs at hard contactno contact
Neck
Tension (kN)0.8
Extension bending moment (Nm)9
Maximum Nij0.16
Chest maximum compression (mm)24
Femur (kN)
Left0.5
Right0.5
Knee displacement (mm)
Left0
Right1
Knee-thigh-hip injury risk (%)
Left0
Right0
Maximum tibia index
Left0.29
Right0.23
Tibia axial force (kN)
Left0.8
Right1.2
Foot acceleration (g)
Left24
Right29

How the passenger-side small overlap front test is conducted

Moderate overlap front: original test

Rating applies to 2021-24 models

Tested vehicle: 2021 Kia K5 LXS 4-door

The Kia K5 was introduced in the 2021 model year, replacing the Optima nameplate in the Kia lineup. Moderate overlap frontal ratings are assigned by the Institute based on a test of a 2021 K5 conducted by Hyundai/Kia as part of frontal crash test verification.

Overall evaluation

G

Structure and safety cage

G

Driver injury measures
Head/neck

G

Chest

G

Leg/foot, left

G

Leg/foot, right

G

Driver restraints and dummy kinematics

G

Technical measurements for this test

Measures of occupant compartment intrusion on driver side

Test IDVTF2016
Footwell intrusion
Footrest (cm)3
Left (cm)4
Center (cm)6
Right (cm)1
Brake pedal (cm)9
Instrument panel rearward movement
Left (cm)0
Right (cm)0
Steering column movement
Upward (cm)0
Rearward (cm)-3
A-pillar rearward movement (cm)0

Driver injury measures

Test IDVTF2016
Head
HIC-15232
Peak gs at hard contactno contact
Neck
Tension (kN)0.7
Extension bending moment (Nm)14
Maximum Nij0.15
Chest maximum compression (mm)25
Legs
Femur force - left (kN)0.3
Femur force - right (kN)0.7
Knee displacement - left (mm)0
Knee displacement - right (mm)0
Maximum tibia index - left0.38
Maximum tibia index - right0.44
Tibia axial force - left (kN)2.3
Tibia axial force - right (kN)1.6
Foot acceleration (g)
Left50
Right46

How the moderate overlap front test is conducted

Side: original test

Rating applies to 2021-24 models

Tested vehicle: 2021 Kia K5 LXS 4-door

The Kia K5 was introduced in the 2021 model year, replacing the Optima nameplate in the Kia lineup. Side ratings are assigned by the Institute based on a test of a 2021 Kia K5 conducted by Hyundai/Kia as part of side crash test verification.

Overall evaluation

G

Structure and safety cage

G

Driver injury measures
Head/neck

G

Torso

G

Pelvis/leg

G

Driver head protection

G

Rear passenger injury measures
Head/neck

G

Torso

G

Pelvis/leg

G

Rear passenger head protection

G

Technical measurements for this test

Measures of occupant compartment intrusion on driver side

Test IDVTS2017
B-pillar to longitudinal centerline of driver's seat (cm)-14.5
Negative numbers indicate the amount by which the crush stopped short of the seat centerline.

Driver injury measures

Test IDVTS2017
Head HIC-15607
Neck
Tension (kN)0.8
Compression (kN)-0.3
Shoulder
Lateral deflection (mm)37
Lateral force (kN)1.8
Torso
Maximum deflection (mm)36
Average deflection (mm)33
Maximum deflection rate (m/s)5.47
Maximum viscous criterion (m/s)0.91
Pelvis
Iliac force (kN)0.8
Acetabulum force (kN)1.0
Combined force (kN)1.7
Left femur
L-M force (kN)0.6
L-M moment (Nm)143
A-P moment (Nm)62

Passenger injury measures

Test IDVTS2017
Head HIC-15182
Neck
Tension (kN)0.1
Compression (kN)0.9
Shoulder
Lateral deflection (mm)17
Lateral force (kN)0.9
Torso
Maximum deflection (mm)22
Average deflection (mm)19
Maximum deflection rate (m/s)2.35
Maximum viscous criterion (m/s)0.20
Pelvis
Iliac force (kN)0.3
Acetabulum force (kN)1.9
Combined force (kN)2.1
Left femur
L-M force (kN)0.4
L-M moment (Nm)127
A-P moment (Nm)-54

How the side crash test is conducted

Side: updated test

Rating applies to 2021-24 models

Tested vehicle: 2023 Kia K5 LXS 4-door

The Kia K5 was introduced in the 2021 model year, replacing the Optima nameplate in the Kia lineup.

Overall evaluation

M

Structure and safety cage

M

Driver injury measures
Head/neck

G

Torso

M

Pelvis

A

Driver head protection
The dummy's head moved downward past the side curtain airbag and struck the window sill of the driver door. The head protection is inadequate.

A

Rear passenger injury measures
Head/neck

G

Torso

G

Pelvis

M

Rear passenger head protection

G

2021 Kia K5 4-door sedan (1)

View of the vehicle just after the crash test.

2021 Kia K5 4-door sedan (2)

View of the vehicle after the crash with doors removed, showing the side airbags and damage to the occupant compartment.

2021 Kia K5 4-door sedan (3)

Smeared greasepaint shows that the driver dummy's head moved downward, past the side curtain airbag, and contacted the window sill.

2021 Kia K5 4-door sedan (4)

Smeared greasepaint shows where the rear passenger dummy’s head was protected by the side airbag.

Technical measurements for this test

Measures of occupant compartment intrusion on driver side

Test IDCES2303
B-pillar to longitudinal centerline of driver's seat (cm)-11.0
Negative numbers indicate the amount by which the crush stopped short of the seat centerline.

Driver injury measures

Test IDCES2303
Head
HIC-15216
Peak gs at hard contact40
Neck
Tension (kN)1.3
Compression (kN)0.3
Shoulder
Lateral deflection (mm)47
Lateral force (kN)1.4
Torso
Maximum deflection (mm)43
Average deflection (mm)39
Maximum deflection rate (m/s)5.71
Maximum viscous criterion (m/s)0.91
Pelvis
Combined force (kN)4.1

Passenger injury measures

Test IDCES2303
Head
HIC-15107
Peak gs at hard contactno contact
Neck
Tension (kN)0.8
Compression (kN)0.7
Shoulder
Lateral deflection (mm)22
Lateral force (kN)1.4
Torso
Maximum deflection (mm)32
Average deflection (mm)24
Maximum deflection rate (m/s)3.45
Maximum viscous criterion (m/s)0.44
Pelvis
Combined force (kN)5.8

How the side crash test is conducted

Roof strength

Rating applies to 2021-23 models

Tested vehicle: 2021 Kia K5 LXS 4-door

Overall evaluation

G

Curb weight3,150 lbs
Peak force18,378 lbs
Strength-to-weight ratio5.83

How the roof strength test is conducted

Head restraints & seats

Seat type: Manual cloth seat

Overall evaluation

G

Dynamic rating

G

Seat/head restraint geometry

G

Technical measurements for this test

Seat typeManual cloth seat
Geometry
Backset (mm)40
Distance below top of head (mm)16
Seat design parameters
Pass/failPass
Max T1 acceleration (g)11.6
Head contact time (ms)67
Force rating1
Neck forces
Max neck shear force (N)21
Max neck tension (N)470


Currently, IIHS tests apply only to front seats.

Headlights

Ratings are given for 4 different headlight variations available on this vehicle.

Trim level(s)

  • GT-Line trim equipped with Premium package; built after November 2020

  • GT-Line trim equipped with AWD package; built after November 2020

  • GT trim equipped with GT1 package; built after November 2020

Low-beam headlight typeLED projector
High-beam headlight typeLED projector
Curve-adaptive?No
High-beam assist?Yes
Overall rating

G

Distance at which headlights provide at least 5 lux illumination:

Low beams
On the straightaway, visibility was good on both sides of the road. On curves, visibility was good in all 4 tests.

The low beams never exceeded glare limits.

High beams
On the straightaway, visibility was good on both sides of the road. On curves, visibility was good on the gradual left and both right curves and fair on the sharp left curve.

High-beam assist compensates for some limitations of this vehicle's low beams on the straightaway.

Technical measurements for this test

Trim level(s)
  • GT-Line trim equipped with Premium package

  • GT-Line trim equipped with AWD package

  • GT trim equipped with GT1 package

Low-beam headlight typeLED projector
High-beam headlight typeLED projector
Curve-adaptive?No
High-beam assist?Yes
Overall rating
Applies to 2021-24 models built after November 2020

G

LOW BEAMSAverage minimum useful
illumination distance (5 lux)
Amount glare
exceeded threshold
Straightaway right edge96.2 mNone
Straightaway left edge62.4 mNone
250m radius right curve, right edge82.3 mNone
250m radius left curve, left edge71.1 mNone
150m radius right curve, right edge73.0 mNone
150m radius left curve, left edge63.7 mNone
HIGH BEAMSAverage minimum useful
illumination distance (5 lux)
Straightaway right edge183.6 m
Straightaway left edge169.9 m
250m radius right curve, right edge84.8 m
250m radius left curve, left edge76.5 m
150m radius right curve, right edge73.8 m
150m radius left curve, left edge63.7 m

Trim level(s)

  • LX trim; built after November 2020

  • LXS trim; built after November 2020

  • GT-Line trim; built after November 2020

  • EX trim; built after November 2020

  • GT trim; built after November 2020

Low-beam headlight typeLED reflector
High-beam headlight typeLED reflector
Curve-adaptive?No
High-beam assist?Yes
Overall rating

A

Distance at which headlights provide at least 5 lux illumination:

Low beams
On the straightaway, visibility was good on both sides of the road. On curves, visibility was good on the gradual right curve, fair on the sharp right curve and inadequate on both left curves.

The low beams created some glare.

High beams
On the straightaway, visibility was good on the right side of the road and inadequate on the left side. On curves, visibility was good on the gradual right curve, fair on the gradual left and sharp right curves, and inadequate on the sharp left curve.

High-beam assist compensates for some limitations of this vehicle's low beams on the straightaway and all 4 curves.

Technical measurements for this test

Trim level(s)
  • LX trim

  • LXS trim

  • GT-Line trim

  • EX trim

  • GT trim

Low-beam headlight typeLED reflector
High-beam headlight typeLED reflector
Curve-adaptive?No
High-beam assist?Yes
Overall rating
Applies to 2021-24 models built after November 2020

A

LOW BEAMSAverage minimum useful
illumination distance (5 lux)
Amount glare
exceeded threshold
Straightaway right edge94.6 m7.8%
Straightaway left edge56.8 m7.8%
250m radius right curve, right edge69.0 mNone
250m radius left curve, left edge48.9 mNone
150m radius right curve, right edge51.7 mNone
150m radius left curve, left edge43.0 mNone
HIGH BEAMSAverage minimum useful
illumination distance (5 lux)
Straightaway right edge142.7 m
Straightaway left edge96.3 m
250m radius right curve, right edge75.5 m
250m radius left curve, left edge66.9 m
150m radius right curve, right edge55.9 m
150m radius left curve, left edge50.0 m

Trim level(s)

  • LX trim; built before December 2020

  • LXS trim; built before December 2020

  • GT-Line trim; built before December 2020

  • EX trim; built before December 2020

  • GT trim; built before December 2020

Low-beam headlight typeLED reflector
High-beam headlight typeLED reflector
Curve-adaptive?No
High-beam assist?Yes
Overall rating

M

Distance at which headlights provide at least 5 lux illumination:

Low beams
On the straightaway, visibility was inadequate on both sides of the road. On curves, visibility was fair on both right curves and inadequate on both left curves.

The low beams never exceeded glare limits.

High beams
On the straightaway, visibility was fair on the right side of the road and inadequate on the left side. On curves, visibility was fair on the gradual right curve and inadequate on the sharp right and both left curves.

High-beam assist compensates for some limitations of this vehicle's low beams on the straightaway and all 4 curves.

Technical measurements for this test

Trim level(s)
  • LX trim

  • LXS trim

  • GT-Line trim

  • EX trim

  • GT trim

Low-beam headlight typeLED reflector
High-beam headlight typeLED reflector
Curve-adaptive?No
High-beam assist?Yes
Overall rating
Applies to 2021 models built before December 2020

M

LOW BEAMSAverage minimum useful
illumination distance (5 lux)
Amount glare
exceeded threshold
Straightaway right edge75.3 mNone
Straightaway left edge44.6 mNone
250m radius right curve, right edge61.9 mNone
250m radius left curve, left edge42.7 mNone
150m radius right curve, right edge49.8 mNone
150m radius left curve, left edge38.3 mNone
HIGH BEAMSAverage minimum useful
illumination distance (5 lux)
Straightaway right edge140.9 m
Straightaway left edge110.9 m
250m radius right curve, right edge72.1 m
250m radius left curve, left edge63.1 m
150m radius right curve, right edge53.1 m
150m radius left curve, left edge46.4 m

Trim level(s)

  • GT-Line trim equipped with Premium package; built before December 2020

  • GT-Line trim equipped with AWD package; built before December 2020

  • GT trim equipped with GT1 package; built before December 2020

Low-beam headlight typeLED projector
High-beam headlight typeLED projector
Curve-adaptive?No
High-beam assist?Yes
Overall rating

P

Distance at which headlights provide at least 5 lux illumination:

Low beams
On the straightaway, visibility was inadequate on both sides of the road. On curves, visibility was inadequate in all 4 tests.

The low beams never exceeded glare limits.

High beams
On the straightaway, visibility was good on both sides of the road. On curves, visibility was inadequate in all 4 tests.

High-beam assist compensates for some limitations of this vehicle's low beams on the straightaway and all 4 curves.

Technical measurements for this test

Trim level(s)
  • GT-Line trim equipped with Premium package

  • GT-Line trim equipped with AWD package

  • GT trim equipped with GT1 package

Low-beam headlight typeLED projector
High-beam headlight typeLED projector
Curve-adaptive?No
High-beam assist?Yes
Overall rating
Applies to 2021 models built before December 2020

P

LOW BEAMSAverage minimum useful
illumination distance (5 lux)
Amount glare
exceeded threshold
Straightaway right edge49.2 mNone
Straightaway left edge41.2 mNone
250m radius right curve, right edge44.9 mNone
250m radius left curve, right edge37.2 mNone
150m radius right curve, right edge43.6 mNone
150m radius left curve, right edge33.6 mNone
HIGH BEAMSAverage minimum useful
illumination distance (5 lux)
Straightaway right edge157.5 m
Straightaway left edge148.6 m
250m radius right curve, right edge57.4 m
250m radius left curve, left edge54.6 m
150m radius right curve, right edge48.0 m
150m radius left curve, left edge40.7 m

How headlights are evaluated

Front crash prevention: vehicle-to-vehicle

Ratings are given for 2 different trim variations available on this vehicle.

System details

  • Optional Forward Collision-Avoidance Assist (FCA) with Cyclist Detection and Junction Turning

Package name

  • Optional Premium, AWD, or GT1 package

Overall evaluation

Applies to 2021 models

Superior

Superior

with optional equipment

  • This system meets the requirements for forward collision warning.
  • In the 12 mph IIHS test, this vehicle avoided a collision.
  • In the 25 mph IIHS test, this vehicle avoided a collision.

System details

  • Standard Forward-Collision Avoidance Assist (FCA) with Pedestrian Detection

Overall evaluation

Applies to 2021-23 models

Superior

Superior

  • This system meets the requirements for forward collision warning.
  • In the 12 mph IIHS test, this vehicle avoided a collision.
  • In the 25 mph IIHS test, this vehicle avoided a collision.

How front crash prevention is evaluated

Front crash prevention: vehicle-to-pedestrian (day)

Ratings are given for 2 different systems available on this vehicle.

System details

  • optional Forward Collision-Avoidance Assist (FCA) with Cylist Detection and Junction Turning

Overall evaluation

This rating applies to 2021-24 models of the following trim lines: GT-Line trim equipped with Premium package, EX trim equipped with Premium package, GT trim equipped with GT1 package

Superior

Superior

with optional equipment

Crossing child

  • In the 12 mph IIHS test, this vehicle avoided a collision.
  • In the 25 mph IIHS test, impact speed was reduced by 22 mph.

Crossing adult

  • In the 12 mph IIHS test, this vehicle avoided a collision.
  • In the 25 mph IIHS test, this vehicle avoided a collision.

Parallel adult

  • In the 25 mph IIHS test, this vehicle avoided a collision.
  • In the 37 mph IIHS test, this vehicle avoided a collision. A warning was issued 1.5 seconds before impact.

System details

  • standard Forward Collision-Avoidance Assist (FCA) with Pedestrian Detection

Overall evaluation

This rating applies to all 2021-24 models

Advanced

Advanced

Crossing child

  • In the 12 mph IIHS test, impact speed was reduced by 3 mph.
  • In the 25 mph IIHS test, impact speed was reduced by 11 mph.

Crossing adult

  • In the 12 mph IIHS test, this vehicle avoided a collision.
  • In the 25 mph IIHS test, impact speed was reduced by 19 mph.

Parallel adult

  • In the 25 mph IIHS test, this vehicle avoided a collision.
  • In the 37 mph IIHS test, impact speed was reduced by 23 mph. A warning was issued 1.9 seconds before impact.

How front crash prevention is evaluated

Child seat anchors

Applies to 2021-24 models

Overall evaluation

A

Vehicle trimLXS
Seat type cloth

This vehicle has 2 rear seating positions with complete child seat attachment (LATCH) hardware.

It has 1 additional seating position with a tether anchor only.

Overall evaluation

A

Vehicle trimLXS
Seat type cloth
GGood
AAcceptable
MMarginal
PPoor
Seating positions that rely on borrowed lower anchors or have only a tether anchor available are not rated.

thether anchor symbol

Tether anchor

lower anchor symbol

Lower anchors

shared lower achors symbol

Lower anchor(s) can be borrowed from adjacent positions(s)
No hardware available

Details by seating position

1
Tether anchor
easy-to-find location
no other hardware could be confused for anchor
Lower anchors
too deep in seat
not too much force needed to attach
easy to maneuver around anchors
2
Tether anchor
easy-to-find location
no other hardware could be confused for anchor
Lower anchors
none available
3
Tether anchor
easy-to-find location
no other hardware could be confused for anchor
Lower anchors
too deep in seat
not too much force needed to attach
easy to maneuver around anchors

Technical measurements for this test

Seat position 21

3

Lower anchor A
Open access ratedNo
Depth (cm)2-4
Force (lbs)19
Clearance angle (degrees)80
Lower anchor B
Open access ratedNo
Depth (cm)2-4
Force (lbs)18
Clearance angle (degrees)71
Tether anchor
LocationRear deck
Confusing hardware presentNo
Has contrasting label
within 3 inches of tether anchor
No

Seat position 22

2

Lower anchor A
No lower latch for this seat position
Lower anchor B
No lower latch for this seat position
Tether anchor
LocationRear deck
Confusing hardware presentNo
Has contrasting label
within 3 inches of tether anchor
No

Seat position 23

1

Lower anchor A
Open access ratedNo
Depth (cm)2-4
Force (lbs)19
Clearance angle (degrees)66
Lower anchor B
Open access ratedNo
Depth (cm)2-4
Force (lbs)15
Clearance angle (degrees)60
Tether anchor
LocationRear deck
Confusing hardware presentNo
Has contrasting label
within 3 inches of tether anchor
No

How child seat anchors are evaluated

2021 Kia K5 4-door sedan (2024)
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