Bulletin No.: PIT5535D
Published date: 07/9/2019

Preliminary Information
PIT5535D Service Front Camera / Service Lane Departure Warning
/ Service Lane Keep Assist Message with DTC B1008 SYM4B /
IntelliBeam Headlight / Windshield Wind Rush Noise
Models
Brand:

Model:

Model Years:

VIN:
from

to

Engine:

Transmissions:

Buick

LaCrosse

2017 - 2019

All

All

All

All

Cadillac

CT6

2016 - 2019

All

All

All

All

Cadillac

Escalade Models

2015 - 2019

All

All

All

All

Cadillac

XT5

2017 - 2019

All

All

All

All

Chevrolet

Bolt

2017 - 2019

All

All

All

All

Chevrolet

Malibu

2016 - 2019

All

All

All

All

Chevrolet

Silverado 1500

2014

All

All

All

All

Chevrolet

Silverado

2015 - 2018

All

All

All

All

Chevrolet

Silverado LD

2019

All

All

All

All

Chevrolet

Silverado 2500/3500

2019

All

All

All

All

Chevrolet

Suburban

2015 - 2019

All

All

All

All

Chevrolet

Tahoe

2015 - 2019

All

All

All

All

GMC

Acadia

2017 - 2019

All

All

All

All

GMC

Sierra 1500

2014

All

All

All

All

GMC

Sierra

2015 - 2018

All

All

All

All

GMC

Sierra Limited

2019

All

All

All

All

GMC

Sierra 2500/3500

2019

All

All

All

All

GMC

Yukon Models

2015 - 2019

All

All

All

All

Involved Region or
Country

North America and N.A. Export Regions

Additional Options
(RPO)

With any of the following RPO's:
UHX - Lane Keep Assist
UEU - Forward Collision Alert
UFL - Lane Warning Departure

Condition

While performing the "Front View Camera Module Calibration", using
the scan tool (GDS2), it may not complete and set DTC B1008 Sym
4B.
Note: A replacement front view camera module must be SPS
programmed before the calibration/learn is performed.

Cause

This is caused when the front view camera module has determined
that it is not properly mounted and/or there is a blockage of its view.

Correction:
Do NOT replace the Front View Camera Module if it is only setting DTC B1008 SYM4B.
Perform the following checks and repair as necessary:
- Verify the front view camera module bracket (5) is fully seated down and secured on the
windshield pins (6), shown below.

- Verify the front view camera module is secured properly to the bracket (5).
- The front view camera module must have a clear field of vision to the road ahead. Check
for anything that may impair the front view camera module's ability to clearly see the area in
front of the vehicle, such as:
Bug deflectors
Tinted windshield glass
Banners across the top of the windshield
Windshield blocked with mud, dirt, snow, ice, or slush
Damaged windshield
- Inclement weather such as fog, rain, or snowy conditions can limit visibility while driving
- Verify there are no yaw sensor issues and if none perform a yaw sensor relearn using
GDS2.
- Inspect for an improperly mounted windshield. In general, this is most likely to occur due
to poor workmanship when a windshield was previously replaced. Inspect the following
areas for proper windshield mounting:
Inspect the gap between the top of the windshield and roof sheet metal (3), shown below.
This gap should be 3.6 mm (+/- 1 mm).

Factory GM windshields use alignment/locating pins (4) in the upper corners of the
windshield, which makes it much easier to properly align the windshield to the body
opening, shown below. Most aftermarket windshields do not use these alignment/locating
pins, which can make it more difficult to ensure a proper installation.

Also, inspect to make sure the windshield is sub-flush to the roof sheet metal (7), as shown
below. If the windshield is proud of the roof sheet it could indicate:
- The old urethane adhesive bead was not cut low enough and left excessively thick.
- Windshield alignment/locating pin(s) are not fully in the alignment hole(s).
- During windshield installation it was not firmly pressed around the entire outside edge
in order to wet-out the urethane adhesive bead.
- The urethane adhesive bead dried before the windshield was installed.
NOTE: A windshield proud of the roof sheet metal could cause excessive wind noise.
Either of these windshield mounting issues could cause the camera to be misaligned and

unable to complete the learn.

- If, after performing the checks listed above and the root cause of the camera not
completing the calibration/learn is still not found, inspect for an aftermarket windshield
being installed in the vehicle. To determine whether or not the windshield is an aftermarket
or factory windshield, inspect for the "GM" Logo in the lower right corner of windshield, as
shown below (2). If the "GM" Logo is not present, then the windshield is aftermarket.

It has been found that some aftermarket windshields do not properly mount/position the
front view camera. Shown below are some images, taken with engineering tools (see note
below), of what the front view camera is actually seeing. The first image is taken from a
truck with an aftermarket windshield. As shown below, the camera is seeing part of the
hood (1). Because of this, the camera is not seeing movement in the area of the hood and
can not complete the learn. The second image below is from a truck with a factory
windshield and there is no hood seen by the front view camera.
Note: The images shown below can only be seen using engineering tools and there is NO
way for the dealership's service tools (GDS2) to see the front view camera images.

NOTE: If the windshield has to be removed/replaced for any of the above reasons, it is
suggested that a factory GM windshield be installed.

Additional SI Keywords
IntelliBeam Headlight high low beam head light lamp

Version History
Version

Modi ed

5
Created on 12/14/2016
Updated on 5/26/17 to update recommendation section
Updated on 7/3/17 to update the models.
Updated on 7/5/2018 to update the model year
Updated on 7/9/2019 to update the model year

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