Service bulletins for the 2016 Cadillac CT6
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.
1371 on file from NHTSA, as of 2026-10-19.
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By component
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By topic
Only bulletins with component: Driver assistance are shown. Show all
| PIT5551E | 2019-10-15. Service bulletin. FORWARD COLLISION AVOIDANCE. This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting. This is normal when the FAB has been set to "Alert". |
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| PIC6123D | 2019-09-16. Service bulletin. ELECTRICAL SYSTEM; LANE DEPARTURE; ENGINE; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL. This Preliminary Information communication provides information to the technician for the adaptive cruise control or lane keep assist unavailable message in the driver?s information center after the vehicle has been parked in direct sunlight and high ambient temperatures. The cameras electronic control unit?s internal operating temperature range is -40 degrees Celsius to 85 degrees Celsius. If the temperature of the electronic control unit of the camera module exceeds 85 degrees Celsius the image processor will no longer function resulting in adaptive cruise control and lane keep assist to be unavailable until the temperature falls to below the maximum operating temperature range |
| PIT5535D | 2019-08-12. Service bulletin. LANE DEPARTURE. This Preliminary Information communication provides information to the technician about vehicles that may have Service Front Camera, Service Lane Departure Warning, and Service Lane Keep Assist Message. Technician may find Diagnostic Trouble Code B1008 Sym 4B set. Technician will need to check the windshield to ensure it is not aftermarket. Technician will also check for anything that may impair the front view camera and ensure the camera is properly mounted. |
| PIT5551D | 2019-06-10. Service bulletin. FORWARD COLLISION AVOIDANCE. This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting. This is normal when the FAB has been set to "Alert". |
| PIC6123C | 2019-06-03. Service bulletin. BACK OVER PREVENTION; ELECTRICAL SYSTEM; LANE DEPARTURE. This Preliminary Information communication provides information to the technician for the adaptive cruise control or lane keep assist unavailable message in the driver?s information center after the vehicle has been parked in direct sunlight and high ambient temperatures. The cameras electronic control unit?s internal operating temperature range is -40 degrees Celsius to 85 degrees Celsius. If the temperature of the electronic control unit of the camera module exceeds 85 degrees Celsius the image processor will no longer function resulting in adaptive cruise control and lane keep assist to be unavailable until the temperature falls to below the maximum operating temperature range |
| PIT5441C | 2019-04-08. Service bulletin. SERVICE BRAKES; EQUIPMENT; BACK OVER PREVENTION: SENSING SYSTEM: CAMERA; PARKING BRAKE; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:ELECTRICAL; LANE DEPARTURE. This Preliminary Information communication provides information to the technician the steps to diagnose and repair vehicles that may have an Object Detection System Message Diagnostic Trouble Codes U0075, U026A, U026B, U026C, U0265, U0268, and/or U0269 stored in the active safety module. Technician should inspect his Multiple Diagnostic Interface cable for damage. Technician should use the Multiple Diagnostic Interface on a like vehicle with object detection bus or theEL-47955-1 MDI 1, MDI 2 Self-Test Loopback Adapter,if there are no issues found finish with diagnosing the customer’s concern, if concern is present in the like vehicle replace the Multiple Diagnostic Interface cable. |
| PIC6048J | 2018-12-17. Service bulletin. LANE DEPARTURE; SEATS. This Preliminary Information communicates to the technician that some customers may comment on the operation of their haptic seat during a Lane Keep Assist event. Lane Keep Assist works differently than Lane Departure Warning. The Lane Keep Assist icon is solid amber, Forward Camera Module is actively commanding a torque to Electronic Power Steering. This means that the driver should also feel some feedback from the steering wheel. No Chimes or haptic in the seat. Lane Keep Assist icon is flashing amber; Forward Camera Module is actively commanding torque to Electronic Power Steering. This will also be accompanied with Lane Departure Warning chimes and haptic in the seat feedback based on the setting chosen in the vehicle settings. This will take place when the vehicle has crossed lane marking by (40 cm) or (15.75 in). |
| PIC6265D | 2018-12-17. Service bulletin. VEHICLE SPEED CONTROL:CRUISE CONTROL; LANE DEPARTURE. This Preliminary information communicates that a vehicle may exhibit a Adaptive Cruise Control Unavailable and/or Lane Keep Assist Unavailable message. The technician may attempt to program the Active Safety Control Module (ASCM) and encounter a code E4399. The technician is advised if he encounters this concern to zero the MIC counter by placing the vehicle into and back out of "Transport Mode". |
| PIT5535C | 2018-08-20. Service bulletin. LANE DEPARTURE: LANE KEEP: STEERING ASSIST; LANE DEPARTURE: WARNING; LANE DEPARTURE: SENSING SYSTEM: CAMERA. This Preliminary Information communication provides information to the technician about vehicles thatmay have Service Front Camera, Service Lane Departure Warning, and Service Lane Keep Assist Message. Technician may find Diagnostic Trouble Code B1008 Sym 4B set. Technician will need to check the windshield to ensure it is not aftermarket. Technician will also check for anything that may impair the front view camera and ensure the camera is properly mounted. |
| PIT5551C | 2018-06-18. Service bulletin. FORWARD COLLISION AVOIDANCE. This Preliminary information communicatesa "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting. This is normal when theFAB has been set to "Alert". |
| 060089026N | 2018-06-04. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY:SUN/MOON ROOF ASSEMBLY; STRUCTURE:BODY:DOOR; POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE); VISIBILITY:WINDSHIELD; ELECTRONIC STABILITY CONTROL (ESC). This warranty bulletin provides labor operation numbers for customer concerns that cant be duplicated. |
| 17NA375 | 2018-06-04. Service bulletin. BACK OVER PREVENTION: SENSING SYSTEM: CAMERA. This informational bulletin provides a diagnostic tip for rear vision camera image that is grainy, distorted and/or pixelated |
| 16-NA-389 | 2018-05-21. Service bulletin. FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: CAMERA; EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. This technical bulletin provides a procedure to reprogram the FVCM if the battery has issues that are related to the front camera module. |
| 080730026D | 2018-05-07. Service bulletin. ELECTRONIC STABILITY CONTROL (ESC). This informational bulletin provides information on Some vehicles may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped. |
| 16-NA-107 | 2018-04-23. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; BACK OVER PREVENTION: SENSING SYSTEM: CAMERA. This technical bulletin provides a procedure to reprogram the radio to correct a customer concern of radio Inoperative, blue Screen, AM clipping noise, HD on/off status not retained in stations, time lag on transitions, no audio with internal amp, and park assist symbol position wrong in rear view camera. |
| PIP5545 | 2018-02-21. Service bulletin. BACK OVER PREVENTION; FUEL SYSTEM, GASOLINE; STEERING:HYDRAULIC POWER ASSIST:PUMP. This Preliminary information communicates a possible noise from the water pump causing a DTC and the diagnostics for the repair. |
| PIT5551B | 2017-11-14. Service bulletin. FORWARD COLLISION AVOIDANCE: SENSING SYSTEM. This Preliminary information communicatesa "Forward Collision System Reduced" message displayed on the DIC when theForward Automatic Braking has been set to the "Alert" setting. This is normal when theFAB has been set to "Alert". |
| PIC6048H | 2017-11-14. Service bulletin. ELECTRICAL SYSTEM; LANE DEPARTURE: WARNING. This Preliminary Information communicates to thetechnician that some customers may comment on the operation of their haptic seat during a Lane Keep Assist event. Lane Keep Assist works differently than Lane Departure Warning. The Lane Keep Assist icon is solid amber, Forward Camera Module is actively commanding a torque to Electronic Power Steering. This means that the driver should also feel some feedback from the steering wheel. No Chimes or haptic in the seat. Lane Keep Assist icon is flashing amber; Forward Camera Module is actively commanding torque to Electronic Power Steering. This will also be accompanied with Lane Departure Warning chimes and haptic in the seat feedback based on the setting chosen in the vehicle settings. This will take place when the vehicle has crossed lane marking by (40 cm) or (15.75 in). |
| PIC5611E | 2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; BACK OVER PREVENTION: CAMERA SYSTEM. This Preliminary Information communication provides information to the technician about the rear view camera options on the vehicles equipped with rear view camera. The rear view camera brightness can be adjusted on some models while the transmission is in reverse and using the Menu or Select button. To turn off or on the guidelines in the rear view camera, use the radio display Config icon then Display, then the guidelines option. |
| PIT5535B | 2017-08-15. Service bulletin. LANE DEPARTURE; VISIBILITY:WINDSHIELD. This Preliminary Information communication provides information to the technician about vehicles thatmay have Service Front Camera, Service Lane Departure Warning, and Service Lane Keep Assist Message. Technician may find Diagnostic Trouble Code B1008 Sym 4B set. Technician will need to check the windshield to ensure it is not aftermarket. Technician will also check for anything that may impair the front view camera and ensure the camera is properly mounted. |
| PIC6048G | 2017-08-15. Service bulletin. LANE DEPARTURE; ELECTRICAL SYSTEM; STEERING. This Preliminary Information communicates to thetechnician that some customers may comment on the operation of their haptic seat during a Lane Keep Assist event. Lane Keep Assist works differently than Lane Departure Warning. The Lane Keep Assist icon is solid amber, Forward Camera Module is actively commanding a torque to Electronic Power Steering. This means that the driver should also feel some feedback from the steering wheel. No Chimes or haptic in the seat. Lane Keep Assist icon is flashing amber; Forward Camera Module is actively commanding torque to Electronic Power Steering. This will also be accompanied with Lane Departure Warning chimes and haptic in the seat feedback based on the setting chosen in the vehicle settings. This will take place when the vehicle has crossed lane marking by (40 cm) or (15.75 in). |
| PIT5551A | 2017-08-15. Service bulletin. FORWARD COLLISION AVOIDANCE. This Preliminary information communicatesa "Forward Collision System Reduced" message displayed on the DIC when theForward Automatic Braking has been set to the "Alert" setting. This is normal when theFAB has been set to "Alert". |
| 17-NA-083 | 2017-08-15. Service bulletin. FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL. This technical bulletin provides a procedure to perform an update on the Radar Sensor Module to reduce possibilities of the Adaptive Cruise Control not working when there are no objects detected. |
| PIC6123B | 2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL; LANE DEPARTURE: ASSIST; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL. This Preliminary Information communication provides information to the technician for the adaptive cruise control or lane keep assist unavailable message in the driver's information center after the vehicle has been parked in direct sunlight and high ambient temperatures. The cameras electronic control unit's internal operating temperature range is -40 degrees Celsius to 85 degrees Celsius. If the temperature of the electronic control unit of the camera module exceeds 85 degrees Celsius the image processor will no longer function resulting in adaptive cruise control and lane keep assist to be unavailable until the temperature falls to below the maximum operating temperature range |
| PIC6220A | 2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; BACK OVER PREVENTION: CAMERA SYSTEM. This Preliminary Information communication provides information to the technician about vehicles with an intermittent loss of gridlines in the rear camera display screen and a "Service Rear Vision System" message that both happen at the same time. Technician should check for Diagnostic Trouble Codes and follow published Service Information diagnostics for the Diagnostic Trouble Codes. If not Diagnostic Trouble Codes stored and the concern was duplicated or the customer described the concern, dealer should communicate to the customer that we apologize for this inconvenience and that General Motors is currently evaluating this concern. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.