NHTSA ID Number: 11014636
Manufacturer Communication Number: PIT5981B
TSB/Document Date: 2025-03-02
Summary
This Preliminary information communicates a tip when diagnosing an inoperative air leveling suspension system and to repair any loss of comm DTC's with the power window motors first.
Bulletin No.: PIT5981B
Published date: 02/27/2025
Preliminary Information
PIT5981B Air Suspension Low / Short Term Inflates or Deflates Inop /
Service Air Leveling / DTC U0222 U0223 U0224 and/or U0225
Models
Brand:
Model:
Model Years:
Cadillac
Escalade
2021
Cadillac Escalade ESV 2021
Chevrolet Suburban
2021
Chevrolet Tahoe
2021
GMC
Yukon
2021
GMC
Yukon XL
2021
-
2025
2025
2025
2025
2025
2025
VIN:
Engine: Transmissions:
from to
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Involved Region or
Country
North America
Additional Options
(RPO)
F47 - Air Leveling Suspension
Some customers may comment on any of the following concerns:
- Air leveling suspension is inoperative
- Service Leveling System message displayed in the DIC
- Air suspension is low or leaning
Condition
When checking for DTC's there may be DTC's set in the Air
Leveling Control Module, but there may also be DTCs that
don't seem to be relevant, such as the following: U0222, U0223,
U0224, and/or U0225.
Also, If performing Short Term Inflates with GDS2, the
function does not work, but the GDS2 screens may indicate that
it is working.
Cause
The cause of these concerns could be a loss of communication
with a power window motor(s), or a door ajar issue.
Correction:
To correct this concern, repair any loss of communication or door ajar DTC's first, and then
reevaluate the air suspension operation.
For proper function of the air leveling suspension, the door ajar status is critical. Each
door ajar switch is hard wired to it's respective door window motor. When there is a
DTC for no communication with a door window motor, the door ajar status (open/close) is
not reliable. This will cause the GDS2 door ajar parameter to default to "closed", even
though the actual door ajar status is unknown due to the no communication issue. This
would mislead a tech to believe the system is in good working order, when it is not.
Tip: When monitoring the door ajar parameters, open and close each door and make sure
the data matches the door position.
Note: This condition has been seen on vehicles that have been upfitted, examples armored
vehicles, limos, etc.
Warranty Information
The correction for this concern may be one of several repairs described above.
For vehicles repaired under warranty, please use the appropriate warranty labor operation
based on the actual cause and repair.
Additional SI Keywords
C1187 C1188 C1189 C118A C118B C118C C118, C118F c1190 c1191 c1192 c1193
unlevel lean right left lo lower front rear
Version History
Version
3
Modified
02/10/2023 - Created on.
02/23/2024 - Update to model list.
02/27/2025 - Update to model list.
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TSB/Document ID: PIT5981B
Replacement Service Bulletin Number:
MFR Communication Date: 2025-02-27
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: SUSPENSION
MFR Component System:
MFR Component Subsystem:
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