2026 Cadillac Celestiq technical service bulletins
88 technical service bulletins and manufacturer communications cover the 2026 Cadillac Celestiq.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
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- If a vehicle has an when attempting to perform a vehicle dynamic sensor learn, the scan tool may display a...
- This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a...
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- This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
- If a vehicle has an issue with super cruise inoperative tech is directed to follow a diagnostic path...
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- • Better responsiveness for the driver display and rear-view camera • Surround Vision Recorder, a new...
- • Additional protection for battery health and to help prevent battery drain • Improved charging messaging...
- • Improvements to prevent loss of audio, including chimes and turn signal indicator sound • Reduced...
- • Improvements to prevent loss of audio, including chimes and turn signal indicator sound • The rear...
- • Improvements to power door opening and closing performance • Improved vehicle performance when driving...
- This PI states that if SDGM DTC P0604/P0607 is set and no other SDGM DTCs are present, clear DTCs and...
- This PI advise dealers If U3000 is present, follow the correct service doc by Symptom Byte before...
- PI to help diagnose A/C concern
- • Fewer unnecessary service messages, warning light activations, and automated OnStar calls from your vehicle.
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- • Fixes to help prevent loss of functionality for connectivity features such as OnStar, Wi-Fi, Navigation,...
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- This software update improves power door opening and closing performance, and makes the power door...
- • Fixes to help ensure successful vehicle software updates
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- Pi created to provide GM dealers with information on gathering information for projection issue
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- Been sold with a GM NACS Level 2 EV charging adapter (NACS to J1772) in which a quality issue was identified
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- This PI advised dealer technicians of possible causes of diesel fuel contamination in gasoline powered...
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- The Driver Information Center may display a message of Transport Mode On after the ignition is cycled.
- New Vehicle Monitoring Programs Section in IVH
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- This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
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- This service bulletin provides information on Tire Sidewall Irregularities.
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- This service bulletin provides information for the technicians to use a Customer Concern Verification...
- This warranty administration bulletin provides information for dealers/technicians on System Reset and...
- This warranty administration bulletin provides policy information for GM courtesy transportation and...
- This service bulletin provides information on the proper Reflective High Temperature Heat and/or...
- The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential...
- This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be...
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