Cadillac Escalade IQL Service Bulletins (2026)

118 manufacturer communications on file.

• August 20, 2026•Document ID: 11036392

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6551C

  Date Added:

  August 27, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This 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 more
  Associated Documents

  • DownloadMC-11036392-0001.pdf↗
• August 14, 2026•Document ID: 11036222

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6533A

  Date Added:

  August 17, 2026

  Manufacturer:

  GMC

  Summary

  This Preliminary information communications information on a Short Range Radar software anomaly causing false / ghost left or right side object detection alerts.

  Associated Products (22)

  2027 Buick Enclave2027 Cadillac Escalade IQ2027 Cadillac Escalade IQL2027 Cadillac Lyriq2027 Cadillac Vistiq2027 Chevrolet Traverse2027 GMC Acadia2026 Buick Enclave2026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Vistiq2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV+ 2 more
  Associated Documents

  • DownloadMC-11036222-0001.pdf↗
• August 5, 2026•Document ID: 11036195

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6368D

  Date Added:

  August 14, 2026

  Manufacturer:

  CADILLAC

  Summary

  This 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 more
  Associated Documents

  • DownloadMC-11036195-0001.pdf↗
• August 3, 2026•Document ID: 11036194

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6512A

  Date Added:

  August 14, 2026

  Manufacturer:

  CADILLAC

  Summary

  This 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 more
  Associated Documents

  • DownloadMC-11036194-0001.pdf↗
• July 30, 2026•Document ID: 11035710

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6517C

  Date Added:

  August 5, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This PI advise dealers If U3000 is present, follow the correct service doc by Symptom Byte before contacting PQC; if not present, verify the camera is clean, then contact PQC if no issue is found.

  Associated Products (29)

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  Associated Documents

  • DownloadMC-11035710-0001.pdf↗
• July 28, 2026•Document ID: 11035356

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  662.60

  Date Added:

  July 30, 2026

  Manufacturer:

  CADILLAC

  Summary

  • Improved vehicle performance when driving in Reverse on slippery surfaces • Better One-Pedal Driving performance • Additional protection for battery health and prevention for battery drain • Improved accuracy for driver display messages

  Associated Products (2)

  2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL
  Associated Documents

  • DownloadMC-11035356-0001.pdf↗
• July 21, 2026•Document ID: 11035340

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5099J

  Date Added:

  July 29, 2026

  Manufacturer:

  CHEVROLET

  Summary

  PI 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 more
  Associated Documents

  • DownloadMC-11035340-0001.pdf↗
• July 14, 2026•Document ID: 11035129

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6081C

  Date Added:

  July 21, 2026

  Manufacturer:

  CADILLAC

  Summary

  This Pi is to let dealer know that a program issue has been released and to not replace any hard for codes P2C8A, P2C8B, U3577, U3578, U3579, U357A, U357B, U357C, U357D, U357E, U357F, U3580, U3581, U3582, U3583, U3584, U2BAA, U2BAB, U2BAC, U2BAD, U2BAE,

  Associated Products (11)

  2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2025 Cadillac Escalade IQ2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2024 GMC Hummer EV Pickup2024 GMC Hummer EV SUV2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11035129-0001.pdf↗
• July 8, 2026•Document ID: 11034981

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6146A

  Date Added:

  July 13, 2026

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates on a software anomaly for a DTC that sets for the incorrect side and how to address that concern.

  Associated Products (11)

  2026 Cadillac Escalade2026 Cadillac Escalade IQL2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2025 Cadillac Escalade2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2024 GMC Hummer EV Pickup2024 GMC Hummer EV SUV2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11034981-0001.pdf↗
• July 6, 2026•Document ID: 11034052

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  662.50

  Date Added:

  June 25, 2026

  Manufacturer:

  CADILLAC

  Summary

  • Fewer unnecessary service messages, warning light activations, and automated OnStar calls from your vehicle

  Associated Products (2)

  2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL
  Associated Documents

  • DownloadMC-11034052-0001.pdf↗
• June 23, 2026•Document ID: 11034769

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5966F

  Date Added:

  July 7, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This 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 more
  Associated Documents

  • DownloadMC-11034769-0001.pdf↗
• June 23, 2026•Document ID: 11034078

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  662.20

  Date Added:

  June 26, 2026

  Manufacturer:

  CADILLAC

  Summary

  • Improvements to help prevent loss of audio, including chimes and turn signal indicator sound • Reduced brightness of front passenger display at night • The front passenger and rear passenger displays will now be able to play content from video streaming services (Canada and Mexico only)

  Associated Products (2)

  2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL
  Associated Documents

  • DownloadMC-11034078-0001.pdf↗
• June 23, 2026•Document ID: 11034077

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  662.30

  Date Added:

  June 26, 2026

  Manufacturer:

  CADILLAC

  Summary

  • Improvements to help prevent loss of audio, including chimes and turn signal indicator sound • Reduced brightness of front passenger display at night • The front passenger and rear passenger displays will now be able to play content from video streaming services (Canada and Mexico only)

  Associated Products (2)

  2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL
  Associated Documents

  • DownloadMC-11034077-0001.pdf↗
• June 19, 2026•Document ID: 11034076

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  662.11

  Date Added:

  June 26, 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 • Fixes to help ensure responsiveness for the driver display and rear view camera • Improvements to reliability for alerts and chimes

  Associated Products (2)

  2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL
  Associated Documents

  • DownloadMC-11034076-0001.pdf↗
• June 10, 2026•Document ID: 11034001

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6523

  Date Added:

  June 18, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This PI provides diagnostic steps for dealer technicians to verify the condition and ensure that part replacement is necessary

  Associated Products (25)

  2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Chevrolet Colorado2026 Chevrolet Tahoe2026 GMC Canyon2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Chevrolet Colorado2025 Chevrolet Tahoe2025 GMC Canyon2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2024 Chevrolet Colorado2024 GMC Canyon2024 GMC Hummer EV Pickup+ 5 more
  Associated Documents

  • DownloadMC-11034001-0001.pdf↗
• June 5, 2026•Document ID: 11033755

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6123

  Date Added:

  June 8, 2026

  Manufacturer:

  CADILLAC

  Summary

  Technical Detail: This PI conveys that the vehicles listed may experience a condition where the vehicle is stuck in parallel condition with no codes resulting in slow DC charging and how to remedy this.

  Associated Products (3)

  2026 Cadillac Escalade IQL2025 Cadillac Escalade IQ2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11033755-0001.pdf↗
• June 5, 2026•Document ID: 11033753

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6477C

  Date Added:

  June 8, 2026

  Manufacturer:

  CADILLAC

  Summary

  This preliminary PI was created to advise techniians in the field that they will not be able to perform a GDS automated bleed with the scan tool dues to a issue with the software in the scan tool

  Associated Products (41)

  2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Chevrolet Tahoe2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2026 GMC Yukon2026 GMC Yukon XL2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Chevrolet Tahoe2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2025 GMC Yukon2025 GMC Yukon XL2024 Cadillac Escalade2024 Cadillac Escalade ESV2024 Chevrolet Tahoe+ 21 more
  Associated Documents

  • DownloadMC-11033753-0001.pdf↗
• June 5, 2026•Document ID: 11033752

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6426B

  Date Added:

  June 8, 2026

  Manufacturer:

  CADILLAC

  Summary

  Fog 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 more
  Associated Documents

  • DownloadMC-11033752-0001.pdf↗
• June 3, 2026•Document ID: 11033726

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6503A

  Date Added:

  June 8, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on part restriction due to elevated replacement rates and ongoing engineering investigation. Technicians must not replace the front camera module unless they have: 1.Completed the diagnostic procedure in this PI, and 2.Contacted TAC and received authorization, including the SI document number and specific step that directs camera replacement.

  Associated Products (101)

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  Associated Documents

  • DownloadMC-11033726-0001.pdf↗
• May 27, 2026•Document ID: 11033150

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6519

  Date Added:

  June 2, 2026

  Manufacturer:

  GMC

  Summary

  This preliminary information is to inform technicians and customers that the voice command will be inoperative when trying to open applications. Engineering is investigating and this PI will be converted to a bulletin when a repair is available.

  Associated Products (152)

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  Associated Documents

  • DownloadMC-11033150-0001.pdf↗