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HOMESERVICE MANUALSTOYOTA2025HIGHLANDER XLE, FWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTDRIVERS ASSISTANCE SYSTEMS - ADASFRONT CAMERA SYSTEM - DIAGNOSTIC CODESFRONT CAMERA SYSTEMDTC C1AA8-00: FRONT RECOGNITION CAMERA OPTICAL AXIS MISALIGNMENT MALFUNCTION [12/2019 - 09/2020]PROCEDURE

2025 Toyota Highlander XLE, FWD

DTC C1AA8-00: Front Recognition Camera Optical Axis Misalignment Malfunction [12/2019 - 09/2020]: Procedure

2025 Toyota Highlander XLE, FWDSECTION Procedure

CHECK FORWARD RECOGNITION CAMERA INSTALLATION

Check the installation condition of the forward recognition camera.

Refer to INSTALLATION [12/2019 - 09/2020]

HINT:

If there is deformation or deviation in the forward recognition camera installation bracket, replace the windshield glass.

No deformation or deviation in forward recognition camera installation bracket.

Result

Proceed to
OK
NG

Result:

See step 11

Result:

See step 2

CHECK VEHICLE OPERATING CONDITION

Check the operating conditions of the vehicle.

HINT:

Check if a condition which caused the forward recognition camera optical axis to become temporarily misaligned existed, such as if the vehicle was overloaded, towed or modified.

Vehicle was not overloaded, towed or modified.

Result

Proceed to
OK
NG

Result:

See step 9

Result:

See step 3

CHECK WHEEL ALIGNMENT

Check the front and rear wheel alignment (toe).

for Front Wheel Alignment: Refer to ADJUSTMENT [12/2019 - 09/2020]
for Rear Wheel Alignment: Refer to ADJUSTMENT [12/2019 - 09/2020]

Result

Result	Proceed to
Front and rear wheels are not misaligned (toe)	A
Front or rear wheel is misaligned (toe)	B

Result:

See step 6

Result:

See step 4

PERFORM FORWARD RECOGNITION CAMERA ADJUSTMENT

Perform forward recognition camera adjustment.

HINT:

Forward recognition camera adjustment can be performed by using either One Time Recognition or Sequential Recognition.

One Time Recognition: Refer to ADJUSTMENT (ONE TIME RECOGNITION) [12/2019 - 09/2020]

Sequential Recognition: Refer to ADJUSTMENT (SEQUENTIAL RECOGNITION) [12/2019 - 09/2020]

Result

Proceed to
NEXT

Result:

See step 5

CLEAR DTC

Clear the DTCs.

Chassis > Front Recognition Camera > Clear DTCs

Result

Proceed to
NEXT

Result:

END

ADJUST WHEEL ALIGNMENT

Adjust the alignment (toe) of the wheels.

for Front Wheel Alignment: Refer to ADJUSTMENT [12/2019 - 09/2020]
for Rear Wheel Alignment: Refer to ADJUSTMENT [12/2019 - 09/2020]

Result

Proceed to
NEXT

Result:

See step 7

PERFORM FORWARD RECOGNITION CAMERA ADJUSTMENT

Perform forward recognition camera adjustment.

HINT:

Forward recognition camera adjustment can be performed by using either One Time Recognition or Sequential Recognition.

One Time Recognition: Refer to ADJUSTMENT (ONE TIME RECOGNITION) [12/2019 - 09/2020]

Sequential Recognition: Refer to ADJUSTMENT (SEQUENTIAL RECOGNITION) [12/2019 - 09/2020]

Result

Proceed to
NEXT

Result:

See step 8

CLEAR DTC

Clear the DTCs.

Chassis > Front Recognition Camera > Clear DTCs

Result

Proceed to
NEXT

Result:

END

PERFORM FORWARD RECOGNITION CAMERA ADJUSTMENT

Return the vehicle to normal operating conditions.

Perform forward recognition camera adjustment.

HINT:

Forward recognition camera adjustment can be performed by using either One Time Recognition or Sequential Recognition.

One Time Recognition: Refer to ADJUSTMENT (ONE TIME RECOGNITION) [12/2019 - 09/2020]

Sequential Recognition: Refer to ADJUSTMENT (SEQUENTIAL RECOGNITION) [12/2019 - 09/2020]

Result

Proceed to
NEXT

Result:

See step 10

CLEAR DTC

Clear the DTCs.

Chassis > Front Recognition Camera > Clear DTCs

Result

Proceed to
NEXT

Result:

END

REPLACE WINDSHIELD GLASS

Replace the windshield glass.

Refer to REMOVAL [12/2019 - 09/2020]

Result

Proceed to
NEXT

Result:

See step 12

PERFORM FORWARD RECOGNITION CAMERA ADJUSTMENT

Perform forward recognition camera adjustment.

HINT:

Forward recognition camera adjustment can be performed by using either One Time Recognition or Sequential Recognition.

One Time Recognition: Refer to ADJUSTMENT (ONE TIME RECOGNITION) [12/2019 - 09/2020]

Sequential Recognition: Refer to ADJUSTMENT (SEQUENTIAL RECOGNITION) [12/2019 - 09/2020]

Result

Proceed to
NEXT

Result:

See step 13

CLEAR DTC

Clear the DTCs.

Chassis > Front Recognition Camera > Clear DTCs

Result

Proceed to
NEXT

Result:

END

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.