Service bulletins for the 2021 Cadillac XT5
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.
833 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| PIT5855C | 2022-02-14. Service bulletin. ENGINE AND ENGINE COOLING; SEATS; ELECTRICAL SYSTEM. This Preliminary information communicates that a vehicle may be encountered with the heated/ventilated seats inoperative. Upon further inspection it will be found that the F19DA fuse will be open. The technician is instructed to inspect the wiring harness that goes to the passenger seat back blower motor for chaffing on the seat frame. If chaffing is found the technician is instructed to repair the damaged circuits and reroute the harness. |
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| PIT5855B | 2022-02-14. Service bulletin. ELECTRICAL SYSTEM; SEATS; ENGINE AND ENGINE COOLING. This Preliminary information communicates that a vehicle may be encountered with the heated/ventilated seats inoperative. Upon further inspection it will be found that the F19DA fuse will be open. The technician is instructed to inspect the wiring harness that goes to the passenger seat back blower motor for chaffing on the seat frame. If chaffing is found the technician is instructed to repair the damaged circuits and reroute the harness. |
| 21NA257 | 2022-02-14. Service bulletin. EXTERIOR LIGHTING; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This service bulletin provides a service procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P3075 Set. |
| 21NA256 | 2022-02-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); EXTERIOR LIGHTING. This service bulletin provides repair information for dealers/technicians to correct a customer concern of a Malfunction Indicator Lamp Illuminated with DTC P26BB Set. |
| 21NA181 | 2022-02-14. Service bulletin. POWER TRAIN. This service bulletin provides 9th gear operation information to respond to customers that may comment on transmission shift operation. |
| PIP5628E | 2022-01-24. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D |
| PIE0651A | 2022-01-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to oil drops on the ground where their vehicle was parked that came from the underneath of the front of vehicle (New Vehicle, before first oil change Only). |
| 030310007K | 2022-01-03. Service bulletin. TIRES; WHEELS. This service bulletin provides information for dealers/technicians on Tire/Wheel Characteristics (Vibration, Balance, Shake, Flat Spotting) of GM Original Equipment Tires. |
| 030091001H | 2022-01-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY:VEHICLE CONTROLS:STEERING. This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure, when diagnosing vibration concerns. |
| 21NA279 | 2021-12-27. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides a procedure to replace the starter if found the cause of the rattle noise. |
| 21NA278 | 2021-12-27. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This service bulletin provides diagnostic strategy information to aid in diagnosing a Ticking, Tap or Rattle Noise from Engine with Possible Misfire, Malfunction Indicator Lamp (MIL) Illuminated. |
| 21NA257 | 2021-12-27. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. This service bulletin provides a service procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P3075 Set. |
| 21NA256 | 2021-12-27. Service bulletin. EXTERIOR LIGHTING; EQUIPMENT; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:ENGINE COOLANT HOSES AND FITTINGS. This service bulletin provides repair information for dealers/technicians to correct a customer concern of a Malfunction Indicator Lamp Illuminated with DTC P26BB Set. |
| 21NA252 | 2021-12-27. Service bulletin. EQUIPMENT; PARKING BRAKE:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE. This technical bulletin provides repair information to correct a customer concern of Electronic Park Brake Applying Intermittently After Vehicle Shutdown without DTC?s. |
| 21NA169 | 2021-12-27. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This service bulletin provides diagnostic information/procedures to aid the service technician in diagnosing 9T45/50/60 automatic transmissions with low mileage and DTCs current or history related to the control solenoids and valves. |
| 20NA136 | 2021-12-27. Service bulletin. EQUIPMENT; POWER TRAIN. This informational bulletin describes/outlines the process for the 9T65 Automatic Transmission Replacement Pilot Program (U.S. Only). |
| 19NA104 | 2021-12-27. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. This service bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area. |
| 20NA136 | 2021-12-20. Service bulletin. POWER TRAIN. This informational bulletin describes/outlines the process for the 9T65 Automatic Transmission Replacement Pilot Program (U.S. Only). |
| 20NA132 | 2021-12-20. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements. |
| 19NA256 | 2021-12-20. Service bulletin. ENGINE. This service bulletin provides diagnostic aid information/procedures to perform inspections to determine if the engine needs to be replaced as opposed to just internal parts for knocking, rattle, squeak and/or squeal type noises from engine. |
| 18NA073 | 2021-12-20. Service bulletin. ENGINE. This service 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. |
| 17NA384 | 2021-12-20. Service bulletin. SEATS. This service bulletin provides repair information to correct a customer concern of a squeak, rattle or creak coming from the second row/rear seat area. |
| PIT5855A | 2021-12-13. Service bulletin. SEATS; ELECTRICAL SYSTEM. This Preliminary information communicates that a vehicle may be encountered with the heated/ventilated seats inoperative. Upon further inspection it will be found that the F19DA fuse will be open. The technician is instructed to inspect the wiring harness that goes to the passenger seat back blower motor for chaffing on the seat frame. If chaffing is found the technician is instructed to repair the damaged circuits and reroute the harness. |
| PIT5863 | 2021-12-13. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This Preliminary information communicates that a vehicle may be encountered with a buzz or rattle type noise emanating from the exhaust. The dealer technician is directed to replace the exhaust system. |
| PIP5824 | 2021-10-25. Service bulletin. FUEL SYSTEM, GASOLINE. This Preliminary information communicates a possible issue with the active fuel management rockers causing a misfire and the correction for this concern. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.