PIT6473 Service Bulletin/Repair Instructions

Bulletin No.: PIT6473
Service Bulletin
Date: January, 2026
PRELIMINARY INFORMATION

Subject:
Brand:
Service Forward Collision or Forward Collision Unavailable Messages with

U3000 SYM49 set current

Model:
Model Year:

from
VIN:

to
from
Engine:
Transmission:
to
Chevrolet
Silverado

1500 New

(RPO J22,

VIN Digit 5

= A or D)
2022
All
All
All
All
Chevrolet
Silverado

1500
2023
All
All
All
All
GMC
Sierra 1500

2022

New (RPO

J22, VIN Digit

5 = H or U)
All
All
All
All
GMC
Sierra 1500
All
All
All
All
2023
Involved Region or Country
North America
Additional Options (RPO)
UHX UFL
Condition
Note: If applicable perform 23-NA-095 and verify the below information.

Some customers may comment there is a Service Front Camera/Service Forward

Collision/Forward Collision Unavailable message with the Collision icon present,

Automatic High Beams inoperative, Lane Keep Assist/Lane Departure Warnings

inoperative. There may also be a U3000 SYM49 set current.
Cause
This could be caused by a film that has built up on the inside of windshield directly in front

of B174W (FVCM) Front View Camera Module that may affect the FVCM's ability to

operate correctly.
Correction

After the following cleaning procedure is completed, the current U3000 SYM49 should go to history once the FVCM

is reconnected.

Recommendation:

-Verify the vehicle has a GM windshield by making sure the GM Logo is etched into the glass in the lower corner of

the windshield.

-Verify there are no cracks, chips, or other damage to the windshield near the FVCM.

-Verify no aftermarket wheels, tires, leveling kits, lowering or lift kits.

-Verify no aftermarket tint, bug deflectors or anything that would reduce the camera's view

-Verify the camera bracket is properly attached to the windshield

-Verify the camera is properly attached to the bracket with no excessive movement and if so, the bracket may need

to be replaced
Copyright 2026 General Motors. All Rights Reserved.
Page 2
January, 2026
Bulletin No.: PIT6473
- If no issues are found then perform the following cleaning procedure.

Cleaning the area inside the bracket properly is critical.

Things such as smears, spots and dust/lint from towels can impact the performance of the FVCM. Cleaning solutions

can also impact the plastic bracket. Shiny plastic can increase glare and reduced FVCM performance. MATERIALS

NEEDED: 70％ isopropyl alcohol, no lint or lint free Lens Cleaning Wipes, flashlight.

STEP 1. Clean and degrease the exterior windshield with the isopropyl alcohol.

STEP 2. Remove B174W FVCM brackets from interior windshield (refer to pictures below).

STEP 3. Apply the alcohol to the lint free Lens Cleaning Wipes.

STEP 4. Wet clean the FVCM lens and then dry clean the FVCM lens.

STEP 5. Wet clean and then dry clean the interior windshield. (Pay special attention to the FVCM window area.)

STEP 6. REPEAT STEPS 4 & 5.

STEP 7. Inspect the cleaned FVCM window area with a flashlight.

STEP 8. Reinstall the FVCM bracket, FVCM, mirror and trim. (review and inspect the FVCM tabs to ensure they are

properly seated).

STEP 9. Perform SPS camera alignment if needed.
7050857
1) Alignment tabs

2) Push in direction of arrow to release lift tabs

3) Lift tabs

Diagnostic Tip - Complete the following if there are any issues learning the FVCM:

• Brake pedal position learn

• Steering angle sensor learn

• YAW sensor learn
Bulletin No.: PIT6473
January, 2026
Page 3
• Verify the K56 SDGM and K73 Telematic Control Module have the latest software

• Complete the Serial Data Authentication (SDAC).
Version
1
Modified
01/21/2026 Created on
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these

technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper

service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job

properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your

vehicle will have that condition. See your GM dealer for information on whether your vehicle may beneﬁt from the

information.
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CERTIFICATION

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