Service Steering Message With P0128 (PIT5967)
WARNING: This page is about the Traverse High Country, 4WD, which is a different variant/trim than selected.
Publication date: 2023-01-04Reference number: PIT5967
SERVICE STEERING MESSAGE WITH P0128
TECHNICAL SERVICE BULLETIN
Reference Number(s): PIT5967, Date of Issue:
Jan 4, 2023
SERVICE INFORMATION
| Brand: | Model: | Model Year: | VIN: | Engine: | Transmission: | ||
|---|---|---|---|---|---|---|---|
| from | to | from | to | ||||
| Buick | Enclave | 2018-2023 | All | All | All | All | |
| Cadillac | XT5 | 2017-2023 | All | All | All | All | |
| Cadillac | XT6 | 2020-2023 | All | All | All | All | |
| Chevrolet | Blazer | 2019-2023 | All | All | All | All | |
| Chevrolet | Traverse | 2018-2023 | All | All | All | All | |
| GMC | Acadia | 2017-2023 | All | All | All | All | |
| Involved Region or Country | North America |
| Condition | A vehicle may come into the dealer with a "Service Steering Message". Upon diagnosis no codes will be found that seem to pertain to the steering system. Code P0128 -Engine Coolant Temperature Below Thermostat Regulating Temperature may be set. |
| Cause | If vehicle diagnostics determine that the ECM may be reading the coolant temperature incorrectly a "Service Steering Message" will be turned on to protect the steering gear in the event of an undetected overheat condition. |
CORRECTION
Perform a vehicle wide DTC scan,
If P0128 is found, diagnose and repair this code first.
Upon repair of the P0128 clear codes, drive the vehicle and see if the "Service Steering Message" returns.
If P0128 is not found or if the message returns after resolving P0128 follow SI diagnostics.
SERVICE INFORMATION
| Version | 1 |
| Modified | 01/04/2023 - Created on. |