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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.

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By component

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Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
060850009J2019-03-25. Service bulletin. SEATS; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information for information on passenger presence sensing system (PPS or PSS) concerns with custom upholstery, accessory seat heaters or other comfort enhancing devices.
060089026O2019-03-25. Service bulletin. EQUIPMENT. This warranty bulletin provides labor operation numbers for customer concerns Not duplicated (CCND).
18NA3762019-03-25. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. This bulletin provides service procedure information for dealers/technicians on Radio Software Version V509 Over-the-Air Update.
17NA0662019-03-25. Service bulletin. POWER TRAIN; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provide policy information for automatic transmission Oil Cooler Flush and flow test.
17NA0732019-03-18. Service bulletin. EQUIPMENT. This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
080089014D2019-03-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information for dealers/technicians on Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S. Technical Assistance (TAC).
040089015T2019-03-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides policy information on required operating procedures.
030603004X2019-03-18. Service bulletin. EQUIPMENT:ELECTRICAL. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements.
010089010M2019-03-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information on comebacks prevention information and using customer concern verification sheets (CCVS).
PIP56162019-03-18. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary information communicates to replace the Input Speed Sensor if normal SI diagnostics does not lead to a resolution.
PIT4945H2019-03-11. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary Information communication provides information to the technician being unable to program fobs to the vehicle. Technician will need to ensure the key FOB is a new unit and has not been programmed to another vehicle previously.
PIP56252019-03-11. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM:WIRING; ENGINE AND ENGINE COOLING. This Preliminary information communicates the possibility of dtc P0238 setting after service work due to the Turbocharger Air Pressure Sensor wiring connector and AC Refrigerant wiring connectors be swapped accidently diring reassembly of the engine wiring harness.
PIT5630A2018-11-26. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. This Preliminary information communicates the possible setting of B101D-39 in the OnStar module and advises of byte info to retrieve while engineering completes further investigation.

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