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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

Bulletins, newest first
PIP56502019-06-10. 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.
PIP5645A2019-06-10. Service bulletin. POWER TRAIN. This Preliminary information communicates that the transmission assembly, the torque converter assembly, and the Stack Plate Heat Exchanger (Automatic Transmission Fluid Cooler Exchanger) will be on restriction for engineering review.
PIP56492019-06-10. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE. This Preliminary information communicates to the dealer that a customer may comment that their MIL is illuminated due to a P0299 set current or in history. It contains diagnostic tip information related to a potential empty fuel level concern.
PIP56452019-06-10. Service bulletin. POWER TRAIN. This Preliminary information communicates that the transmission assembly, the torque converter assembly, and the Stack Plate Heat Exchanger (Automatic Transmission Fluid Cooler Exchanger) will be on restriction for engineering review.
PIP56432019-06-03. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates the possibility of the wastegate retaining clip on the wastegate lever falling off and causing dtc p0299.
PIP5569A2019-06-03. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE. This Preliminary information communicates to the dealer an issue where the vehicle's engine may crank over unprompted and not start afterward. This is the result of hooking up the Active Fuel Injector Tool incorrectly on vehicles equipped with a direct fuel injection system. This Preliminary information instructs the dealer of a repair kit they received that will prevent this issue when installed correctly.
PIP5578A2019-06-03. Service bulletin. ENGINE; EQUIPMENT. The Preliminary Information communication advises the technician that there is a part restriction for the 2.0L LSY engine. The dealer technician is advised to call the GM Product Quality Center for further assistance.
PIP56342019-06-03. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates that Some technicians may find DTC P0496 set in the ECM. Diagnostics should be completed to determine if the DTC is the result of an air leak in the purge system.
19NA0762019-05-28. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; BACK OVER PREVENTION: SENSING SYSTEM: CAMERA; EQUIPMENT ADAPTIVE/MOBILITY. This technical bulletin provides repair information to correct a customer concern of Blue Screen and Service Rear Vision System Message on Radio Display.
PIE05212019-05-20. Service bulletin. ENGINE. This engineering information (EI) bulletin is requesting information from the field on the malfunction indicator lamp (MIL) illuminating to develop/validate a field fix.
PIE0520A2019-05-20. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. This engineering informational bulletin is requesting information to notify the dealership personnel not to relearn the sunroof module and to contact the engineer for further instructions. This revision removes the Breakpoint information.
PIE05202019-05-20. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. This engineering informational bulletin is requesting information to notify the dealership personnel not to relearn the sunroof module and to contact the engineer for further instructions.
PIE0503B2019-05-20. Service bulletin. ENGINE. This engineering information PI ends the need for information from the field on reduced engine power, DTC P0299 set.
1008110001H2019-05-20. Service bulletin. EQUIPMENT. This informational bulletin provides information on proper use of floor mats.
030603004Y2019-05-20. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements.
19NA0472019-05-20. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Technical bulletin provides procedure information for dealers/technicians on Radio Software Version V803 Over-the-Air Update.
N182205680 012019-05-13. Service bulletin. POWER TRAIN. N182205680-01 - Service Update, Revised Parts, Service Procedure and Warranty Information. Certain vehicles may have been manufactured with a stacked plate heat exchanger (SPHE) that has the potential to develop a leak. A leaking SPHE can contaminate the automatic transmission fluid with engine coolant, resulting in poor transmission shift quality like shudder, hard shifts, vibration, or surging that typically will not provide malfunction indication (no DTCs set).Dealers are to replace the stacked plate heat exchanger.
N1922121402019-05-13. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. N192212140 - Service Update. Certain 2vehicles may discharge their battery after a remote start event and then one of the following happens: Remote shutdown, time out of remote start, entering the vehicle and pushing the ignition button to enter ACC or Run then pushing ignition button to turn vehicle off without ever having shifted from park. Additionally, due to a separate issue, certain Air Temperature Sensor diagnostic trouble codes (DTC?s) could present themselves and indicate a condition in the ECM which can lead to a discharge of the battery as well. Dealers will reprogram the engine control module (ECM).
N1822000802019-05-13. Service bulletin. POWER TRAIN. N182200080 - Service Update. Certain vehicles may have a condition in which the selectable one-way clutch is not released or is stuck on. The vehicle may have a hesitation or decreased acceleration, the Check Engine Light may appear and DTC P2731 may also set. Dealers will reprogram the transmission control module.
N1822056802019-05-13. Service bulletin. POWER TRAIN. N182205680 - Service Update. Certain vehicles may have been manufactured with a stacked plate heat exchanger (SPHE) that has the potential to develop a leak. A leaking SPHE can contaminate the automatic transmission fluid with engine coolant, resulting in poor transmission shift quality like shudder, hard shifts, vibration, or surging that typically will not provide malfunction indication (no DTCs set).Dealers are to replace the stacked plate heat exchanger.
PIE05172019-04-22. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS; FUEL SYSTEM, GASOLINE. This engineering informational bulletin is requesting information on product issue with the Evap/Fuel Line Connections and the engineer is requesting pictures.
1008110001G2019-04-22. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information on proper use of floor mats.
110089005N2019-04-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides information on Dealer Empowerment Labor Operations and Customer Enthusiasm.
100845001F2019-04-22. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin provides information for electrical ground repairs using new replacement fasteners with "conductive finish".
090089002Q2019-04-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before sold (prepping) to the customer.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.