Bulletin No.: PIT6473E

Service Bulletin

Date: March, 2026

PRELIMINARY INFORMATION
Subject:

Brand:

Service Forward Collision / Forward Collision Unavailable Messages /
Automatic High Beams Inop / Camera Only Learns to 94% / U3000
Model:

Model Year:
from

VIN:
to

from

Engine:

Transmission:

to

Chevrolet

Silverado
1500

2019-2026

All

All

All

All

Chevrolet

Silverado
2500

2020-2026

All

All

All

All

Chevrolet

Silverado
3500

2020-2026

All

All

All

All

GMC

Sierra 1500

2019-2026

All

All

All

All

GMC

Sierra 2500

2020-2026

All

All

All

All

GMC

Sierra 3500

2020-2026

All

All

All

All

Involved Region or Country

North America

Additional Options (RPO)

Any UHX UFL UEU UFY UHY or TQ5

Condition

Some customers may report a “Service Front Camera,” “Service Forward Collision,” or
“Forward Collision Unavailable” message displayed with the collision warning icon. In
addition, Automatic High Beams, Lane Keep Assist, and/or Lane Departure Warning may
be inoperative, camera learn will not complete, and DTC U3000 may be stored in the
Front View Camera Module. Some may comment of the Lane Warning Departure being
inoperative only during dark or low ambient lighting conditions / nighttime, along with the
Automatic High Beams.

Cause

The cause of these conditions may be attributed to one or more of the following:
- Only 2022 model year with RPO J22: It was recently determined that the Front View
Camera Module (FVCM) calibrations loaded into TLC/SPS between September 2025 and
March 13, 2026 were an outdated version that did not include the corrective update,
potentially leading to these conditions.
- A film or residue that has accumulated on the inside of the windshield directly in front of
the B174W (FVCM) Front View Camera Module, which may affect the camera’s ability to
operate properly.
- Low system voltage during engine cranking.

Correction
Only 2022 model year with RPO J22: If the Front View Camera Module (FVCM) was programmed between
September 2025 and March 13, 2026, it may have received an outdated camera calibration that can contribute to
these conditions. Engineering has resolved the issue, and the updated camera calibrations have been rereleased to
TLC/SPS. Reprogram the Front View Camera Module with the latest calibrations in TLC/SPS.
For All Models perform the following:
Correct any low battery/voltage concerns before proceeding.
After the following cleaning procedure is completed, the current U3000 SYM49 should go to history once the FVCM
is reconnected.

Copyright 2026 General Motors. All Rights Reserved.

Page 2

March, 2026

Bulletin No.: PIT6473E

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
- 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

Bulletin No.: PIT6473E

March, 2026

Page 3

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
• Verify the K56 SDGM and K73 Telematic Control Module have the latest software
• Complete the Serial Data Authentication (SDAC).

Version

6

Modified

01/21/2026 Created on
01/28/2026 Updated the condition and correction sections.
03/10/2026 Updated to the models, title, condition, cause and correction sections.
03/12/2026 Updated to the cause and correction sections.
03/13/2026 Update to the correction sections.
03/24/2026 - Update to the cause and correction sections.

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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