Service bulletins for the 2019 Cadillac XT4
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
832 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
Only bulletins with component: Engine are shown. Show all
| PIE0559A | 2020-08-10. Service bulletin. ENGINE AND ENGINE COOLING. This engineering information (EI) closure ends the need for information from technicians/field in regards to engine oil found under their vehicle. |
|---|---|
| 20NA098 | 2020-06-22. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. This informational bulletin explains to the tech on how to order a new fuel injector by matching the part number on the part and ordering it from the EPC. |
| 16NA383 | 2020-06-22. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up. |
| 20NA088 | 2020-05-26. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY:SOLENOID; ENGINE; ELECTRICAL SYSTEM. This technical bulletin provides a diagnostic procedure to correct a condition of Vehicle Will Not Start and/or Starter Inoperative or Not Disengaging. |
| PIE0559 | 2020-05-04. Service bulletin. ENGINE. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to engine oil found under their vehicle. |
| PIP5697B | 2020-04-13. Service bulletin. ELECTRICAL SYSTEM; ENGINE; POWER TRAIN. This Preliminary information communicates a possible BCM concern if DTC P0747 sets during engine cranking when the transmission is in park. |
| PIP5697A | 2020-04-13. Service bulletin. ENGINE; EQUIPMENT; POWER TRAIN. This Preliminary information communicates a possible BCM concern if DTC P0747 sets during engine cranking when the transmission is in park. |
| PIP5712 | 2020-04-13. Service bulletin. ENGINE. This Preliminary information communicates to the technician a service Diagnostic / Repair tip to avoid causing the crankshaft sprocket to disengage from the crankshaft during crankshaft balancer removal. |
| 040601029J | 2020-04-06. Service bulletin. ENGINE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin explains Unscheduled Supplemental Services (including Flushing Services and Additives) and the Proper use of GM Simplified Maintenance Schedules. |
| 18NA073 | 2020-03-30. Service bulletin. EQUIPMENT; ENGINE. This Bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement. |
| PIE0549A | 2020-03-09. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This engineering informational bulletin is requesting information from the field on no crank / no start issue resulting in a starter replacement due to the solenoid overheating. |
| 15NA010 | 2020-03-02. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This informational bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in other states. |
| PIP5650B | 2020-02-10. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates the possibility of DTC P3075 being set current or history due to low coolant level or air trapped in cooling system. |
| PIT5724 | 2020-01-21. Service bulletin. ENGINE. This Preliminary information communicates to dealers that if the SES/MIL light is on and there are multiple communication codes stored to inspect the engine harness between the power steering gear and the rear of the transmission case. |
| N182205890 02 | 2019-12-30. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; FUEL SYSTEM, GASOLINE; EQUIPMENT. N182205890-02 - Service Update. Certain vehicles may have a condition where some capacitors used on the purge pump printed circuit board (PCB), may have unknown performance. These suspect capacitors are used in multiple locations on the PCB. Depending on which capacitors fail, the purge pump may not operate as intended and a malfunction indicator lamp (MIL) may illuminate. Dealers are to replace the evaporative emission purge pump. |
| PIE0537A | 2019-12-16. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards. |
| PIC6374 | 2019-12-09. Service bulletin. ENGINE AND ENGINE COOLING; SERVICE BRAKES. This Preliminary information communicates to the dealer a GDS2 error message (see below) might occur when trying to deactivate the boost system when preforming the hydraulic bleed procedure. This concern could be caused by the B20 Brake Fluid Level Switch Connector and the B34D Engine Coolant Temperature Sensor 4 Connector have been swapped. |
| PIP5652A | 2019-12-09. Service bulletin. ENGINE; EQUIPMENT ADAPTIVE/MOBILITY. This Preliminary information communicates the possibility of a rattle noise that can occur from the timing cover area due to sticking timing chain tensioner. |
| 010601011K | 2019-11-25. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption. |
| PIE0537 | 2019-10-28. Service bulletin. ENGINE AND ENGINE COOLING. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a check engine lamp illuminated and DTC P0451 set. |
| N192264170 | 2019-10-21. Service bulletin. ENGINE. N192264170 - SUB - Certain 2019 model year Cadillac XT4 vehicles equipped with a 2.0L. 4-Cylinder Turbo engine do not properly clear the permanent status for EBCM DTC U0100 (loss of communications with ECM) or U0101 (loss of communications with TCM) if a service tool was used to clear these DTCs. Vehicles with the permanent status set for these DTCs could potentially fail an emissions inspection in certain jurisdictions that check the permanent status of DTCs. Dealers will reprogram the electronic brake control module (EBCM). |
| 090604026R | 2019-09-23. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2. |
| 070601016F | 2019-09-23. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement. |
| 000601026M | 2019-09-23. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage. |
| PIP5660 | 2019-08-12. Service bulletin. ENGINE; ELECTRICAL SYSTEM:WIRING. This Preliminary information communicates the possibility of a reduced power message with dtc p2101 and/or p1516 due to potential throttle body issue. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.