2026 Cadillac Optiq technical service bulletins
150 technical service bulletins and manufacturer communications cover the 2026 Cadillac Optiq.
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...
- • Fixes to help ensure start reliability and prevent battery drain • Improved charging performance and...
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- This update contains a required software change to help improve the overall software update and...
- This PI states an issue may exist with the liftgate spoiler contacting the body creating a noise.
- • Digital key will be available in the myCadillac mobile app a few minutes after the update completes
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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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- • Additional protection for battery health and to help prevent battery drain • Improved charging messaging...
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- 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...
- Condition in which the vehicle experiences a reduction in deceleration during a low-speed ABS braking...
- • Updates to enable Plug and Charge at select Supercharger stations through Energy Pass
- PI to help diagnose A/C concern
- Customer Satisfaction Program
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- • Improvements to system responsiveness • Improvements to camera image clarity • Fixes to prevent blank...
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- • Fixes to help prevent loss of functionality for connectivity features such as OnStar, Wi-Fi, Navigation,...
- This PI explains that the T18, Battery charger drive power distribution control modules are on parts...
- • Improvements to high voltage battery diagnostics • Improvements to transmission diagnostics used for...
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- Been built with the incorrect power seat switch on the Driver’s door panel
- Condition in which the Telematic Control Module may enter an unrecoverable state
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- Pi created to provide GM dealers with information on gathering information for projection issue
- Condition in which the vehicle experiences a reduction in deceleration during a low-speed ABS braking...
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- Condition in which the Telematic Control Module may enter an unrecoverable state
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- • Improvements to the performance of driver assistance features
- A vehicle may have a service driver assist message and the technician cannot get the Long Range Radar...
- 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 P/I is advising that the TCM should not be replaced for DTC P16F4 and to follow the repair instructions.
- This P/I is advising that the TCM should not be replaced for DTC P16F4 and to request FSE assistance for a...
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- • Improvements to help protect battery health in low temperatures
- This PI advised dealer technicians of possible causes of diesel fuel contamination in gasoline powered...
- This PI communicates information that the Collision / Detection Systems will revert to default setting of...
- •This update will allow you to enable digital key with the myCadillac mobile app
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- The Driver Information Center may display a message of Transport Mode On after the ignition is cycled.
- This information provides software update information for the K73 Telematics module to correct the...
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- New Vehicle Monitoring Programs Section in IVH
- This preliminarily information communication an issue with the supercruise dropping out when next to a...
- This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and...
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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.
- 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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