22-NA-227

Bulletin No.:
Service Bulletin
Date:
22-NA-227
November, 2022
TECHNICAL
Subject:
Rear Washer System Inoperative, or Boot to Washer Hose Disconnection and Possible
Hose Leaking
Brand:
Model:
Cadillac
Escalade Models
Chevrolet
GMC
Suburban
Tahoe
Model Year:
from
to
2021
2023
VIN:
from
to
Engine:
Transmission:
All
All
Yukon Models
Involved Region or Country
United States, Canada, Mexico, Europe, Uzbekistan, Russia, Middle East, Korea,
Colombia
Additional Options (RPOs)
Condition
Some customers may comment on the rear washer system being inoperative, or boot to
washer hose disconnection and possible hose leaking.
Cause
The cause of the condition may be due to a disconnected rear washer hose, or that the
connector where the barb that retains the washer hose boot, have been separated.
Correction
The most common location for this Condition, is at the passenger lower D-pillar washer
hose inside the body. Verify and repair the Condition, following the steps in the Service
Procedure below.
Service Procedure
Important: Service agents must comply with all
International, Federal, State, Provincial, and/or
Local laws applicable to the activities it performs
under this bulletin, including but not limited to
handling, deploying, preparing, classifying,
packaging, marking, labeling, and shipping
dangerous goods. In the event of a conflict between
the procedures set forth in this bulletin and the
laws that apply to your dealership, you must follow
those applicable laws.
6192930
Copyright 2022 General Motors LLC. All Rights Reserved.
Page 2
November, 2022
Bulletin No.: 22-NA-227
Note: The D-pillar washer hose (1) inside the body is
likely the most common connect to show the Condition.
Other susceptible locations are noted further below.
1. Remove the passenger quarter lower rear trim
panel and enough adjacent trim, to access the
passenger side D-pillar washer hose inside the
body. Refer to Quarter Lower Rear Trim Panel
Replacement - Right Side, in SI.
6192931
2. The graphic above is an example of a connector
location in which the washer hose barb was
detaching from the boot. As shown in the graphic,
re-seat the hose barb and add a tie strap at the
location designated by the black bar.
• If the washer system is now operative, reinstall
the trim and return the vehicle to the customer.
Refer to Quarter Lower Rear Trim Panel
Replacement - Right Side, in SI.
• If the washer system is still inoperative, look to
either of the 2 connector locations shown
below.
6192932
Bulletin No.: 22-NA-227
November, 2022
Page 3
Note: The above view is from the underside of the rear
body. The vehicle would need to be positioned on a
hoist to inspect this connection location.
3. Access the chassis hose / chassis harness
connection (2) that is near the rear spare tire.
6192933
Parts Information
Note: Open the liftgate and partially pull down the
headliner to inspect this connection location.
4. Access to the connection shown above (3) is made
at the headliner where the D pillar hose is
connected to the spoiler washer hose.
5. Verify that the rear washer system is fully
functioning.
Causal
Part
Description
Part
Number
Qty
N/A
Tie Strap
Accrue
Locally
As needed
(1 per
location)
Warranty Information
For vehicles repaired under the Bumper-to-Bumper
coverage (Canada Base Warranty coverage), use the
following labor operation. Reference the Applicable
Warranties section of Investigate Vehicle History (IVH)
for coverage information.
Labor Operation
Description
Labor Time
2086578*
Access the Passenger Side D-pillar Washer Hose, Re-seat the
Connector and Add a Tie Strap
1.1 hr
*This is a unique Labor Operation for Bulletin use only.
Version
1
Modified
Released November 14, 2022
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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