Cadillac Optiq Service Bulletins (2025)
287 manufacturer communications on file.
- August 20, 2026•Document ID: 11036393Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6661
- Date Added:
- August 27, 2026
- Manufacturer:
- CADILLAC
SummaryThis Preliminary information communicates to the technician a diagnostic tip when they encounter a condition that involves the tail lights staying on after the vehicle has been turned off.
Associated Products (3)Associated Documents - August 20, 2026•Document ID: 11036392Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6551C
- Date Added:
- August 27, 2026
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
Associated Products (210)2026 Buick Enclave2026 Buick Encore2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Cadillac XT52026 Cadillac XT62026 Chevrolet Blazer2026 Chevrolet Colorado+ 190 moreAssociated Documents - August 20, 2026•Document ID: 11036307Service CampaignPOWER TRAIN
- Mfr Comm. #:
- N252502890-01
- Date Added:
- August 20, 2026
- Manufacturer:
- CADILLAC
SummaryCertain vehicles may have a condition in which the internal differential nut was cross threaded or missing during assembly. Dealers will review the vehicles service history in IVH, and if necessary, replace the front electric drive transmission module.
Associated Products (1)Associated Documents - August 18, 2026•Document ID: 11036394Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6656A
- Date Added:
- August 27, 2026
- Manufacturer:
- CADILLAC
SummaryThis Preliminary information communicates to the technician the direction needed when encounter a noise complaint for the rear disc brakes.
Associated Products (3)Associated Documents - August 5, 2026•Document ID: 11036195Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6368D
- Date Added:
- August 14, 2026
- Manufacturer:
- CADILLAC
SummaryThis Preliminary information communicates an issue with the virtual garage door opener not programming to a garage opener. Engineering is working on a new module.
Associated Products (39)2026 Buick Enclave2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Terrain2026 GMC Yukon2026 GMC Yukon XL2025 Buick Enclave2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq+ 19 moreAssociated Documents - August 3, 2026•Document ID: 11036194Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6512A
- Date Added:
- August 14, 2026
- Manufacturer:
- CADILLAC
SummaryThis PI states that if SDGM DTC P0604/P0607 is set and no other SDGM DTCs are present, clear DTCs and reset the SDGM. Advises of how to contact PQC to authorize SDGM replacement.
Associated Products (59)2026 Buick Enclave2026 Buick Envision2026 Cadillac Celestiq2026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Colorado2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Canyon2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2026 GMC Terrain+ 39 moreAssociated Documents - July 24, 2026•Document ID: 11035355Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6656
- Date Added:
- July 30, 2026
- Manufacturer:
- CADILLAC
SummaryThis Preliminary information communicates to the technician the direction needed when encounter a noise complaint for the rear disc brakes.
Associated Products (3)Associated Documents - July 24, 2026•Document ID: 11035347Over The AirUNKNOWN OR OTHER
- Mfr Comm. #:
- 661.20
- Date Added:
- July 30, 2026
- Manufacturer:
- CADILLAC
Summary• Improvements to system responsiveness • Improvements to camera image clarity • Fixes to prevent blank screens and audio drop-outs • Improvements to vehicle software update installation • Surround Vision Recorder, a new feature that allows you to record, watch, and save video from your vehicle's cameras. • Security Recording, a new feature that can automatically begin recording if your vehicle's alarm is triggered while it is parked. • Cabin Glance, a new feature that displays a live feed of the seating area on your infotainment screen. This allows you to check on passengers, such as kids or pets.
Associated Products (1)Associated Documents - July 23, 2026•Document ID: 11035158Service CampaignSERVICE BRAKES
- Mfr Comm. #:
- N252528241-01
- Date Added:
- July 23, 2026
- Manufacturer:
- CADILLAC
SummaryCertain vehicles listed above may have a condition in which the vehicle experiences a reduction in deceleration during a low-speed ABS braking event when the road surface transitions from smooth to rough surfaces. Dealers are to reprogram the Brake System Control Module. Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.
Associated Products (2)Associated Documents - July 21, 2026•Document ID: 11035340Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT5099J
- Date Added:
- July 29, 2026
- Manufacturer:
- CHEVROLET
SummaryPI to help diagnose A/C concern
Associated Products (210)2026 Buick Enclave2026 Buick Encore2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Cadillac XT52026 Cadillac XT62026 Chevrolet Blazer2026 Chevrolet Colorado+ 190 moreAssociated Documents - July 16, 2026•Document ID: 11035031Service CampaignVISIBILITY/WIPER
- Mfr Comm. #:
- N252534680
- Date Added:
- July 16, 2026
- Manufacturer:
- CADILLAC
SummaryCustomer Satisfaction Program. Certain vehicles listed above may experience delamination from the foam windshield seal in higher temperatures. Dealers will inspect, and if necessary, replace the windshield foam seal.
Associated Products (2)Associated Documents - July 13, 2026•Document ID: 11035130Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIP6021D
- Date Added:
- July 21, 2026
- Manufacturer:
- CADILLAC
SummaryThis Preliminary Information communicates that, under certain conditions, a MIL (Malfunction Indicator Lamp) illumination or a "Service High Voltage" message may display on the IPC (Instrument Panel Cluster), and the 12V battery may experience discharge.
Associated Products (9)Associated Documents - July 13, 2026•Document ID: 11035123Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6655
- Date Added:
- July 21, 2026
- Manufacturer:
- CADILLAC
SummaryThis Preliminary information communicates to the technician the direction needed when encountering an issue with pinch point protection is inoperative on the front windows.
Associated Products (3)Associated Documents - July 10, 2026•Document ID: 11034982Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6628E
- Date Added:
- July 13, 2026
- Manufacturer:
- CADILLAC
SummaryThis Preliminary information communicates to the technician the repair direction needed to correct the foam seal when visible from inside or outside of the vehicle.
Associated Products (2)Associated Documents - June 25, 2026•Document ID: 11034047Over The AirUNKNOWN OR OTHER
- Mfr Comm. #:
- 661.10
- Date Added:
- June 25, 2026
- Manufacturer:
- CADILLAC
Summary• Improvements to high voltage battery diagnostics • Improvements to transmission diagnostics used for shifting • Fixes to protect EV adaptor from overheating while charging
Associated Products (1)Associated Documents - June 23, 2026•Document ID: 11034769Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT5966F
- Date Added:
- July 7, 2026
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.
Associated Products (210)2026 Buick Enclave2026 Buick Encore2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Cadillac XT52026 Cadillac XT62026 Chevrolet Blazer2026 Chevrolet Colorado+ 190 moreAssociated Documents - June 18, 2026•Document ID: 11034023Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIP6021C
- Date Added:
- June 22, 2026
- Manufacturer:
- CADILLAC
SummaryThis Preliminary Information communicates that, under certain conditions, a MIL (Malfunction Indicator Lamp) illumination or a "Service High Voltage" message may display on the IPC (Instrument Panel Cluster), and the 12V battery may experience discharge.
Associated Products (9)Associated Documents - June 16, 2026•Document ID: 11034038Over The AirUNKNOWN OR OTHER
- Mfr Comm. #:
- N25-252332
- Date Added:
- June 24, 2026
- Manufacturer:
- GMC
Summary• Fixes to help prevent loss of functionality for connectivity features such as OnStar, Wi-Fi, Navigation, and Super Cruise.
Associated Products (25)2026 Buick Enclave2026 Buick Envision2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Lyriq2026 Cadillac Optiq2026 Chevrolet Equinox2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Terrain2025 Buick Enclave2025 Cadillac Celestiq2025 Cadillac CT42025 Cadillac CT52025 Cadillac Lyriq2025 Cadillac Optiq2025 Chevrolet Traverse2025 GMC Acadia2024 Cadillac Lyriq+ 5 moreAssociated Documents - June 12, 2026•Document ID: 11033999Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIP6103C
- Date Added:
- June 18, 2026
- Manufacturer:
- CADILLAC
SummaryThis PI explains that the T18, Battery charger drive power distribution control modules are on parts restriction thru TAC.
Associated Products (6)Associated Documents - June 5, 2026•Document ID: 11033752Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6426B
- Date Added:
- June 8, 2026
- Manufacturer:
- CADILLAC
SummaryFog lamp control may be missing from radio display after a BCM update. Engineering is investigating.
Associated Products (29)2026 Buick Enclave2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Vistiq2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2026 GMC Yukon2026 GMC Yukon XL2025 Buick Enclave2025 Cadillac Celestiq2025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq+ 9 moreAssociated Documents