PIT5981
Service Bulletin Details
Public Details for: PIT5981
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.
Models from 2023
| 2023 CADILLAC ESCALADE ESV |
| 2023 CHEVROLET SUBURBAN |
| 2023 CHEVROLET TAHOE |
| 2023 GMC YUKON XL |
Models from 2022
| 2022 CADILLAC ESCALADE ESV |
| 2022 CHEVROLET SUBURBAN |
| 2022 CHEVROLET TAHOE |
| 2022 GMC YUKON XL |
Models from 2021
| 2021 CADILLAC ESCALADE ESV |
| 2021 CHEVROLET SUBURBAN |
| 2021 CHEVROLET TAHOE |
| 2021 GMC YUKON XL |
Bulletin No.: PIT5981 Published date: 02/10/2023 Preliminary Information PIT5981 Air Suspension Low / Short Term In ates or De ates Inop / Service Air Leveling / DTC U0222 U0223 U0224 and/or U0225 Models Brand: Model: Model Years: VIN: from to Engine: Transmissions: Cadillac Escalade Models 2021 - 2023 All All All All Chevrolet Suburban 2021 - 2023 All All All All Chevrolet Tahoe 2021 - 2023 All All All All GMC Yukon Models 2021 - 2023 All All All All 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 In ates 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 rst, 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 up tted, examples armored vehicles, limos, etc. Warranty Information 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 Modi ed 1 2/10/2023 - Created on. © 2023 General Motors. All Rights Reserved.