Service bulletins for the 2011 Cadillac CTS
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.
1525 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
Only bulletins with component: Suspension are shown. Show all
| PIP5338 | 2017-08-15. Service bulletin. SUSPENSION; STRUCTURE:FRAME AND MEMBERS. This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately diagnose and repair. Technician will need to use Pico Oscilloscope Diagnostic Kit to effectively diagnosis vehicles. Technician should drive the vehicle will using the Pico Oscilloscope to record data. After the data is recorded it should be reviewed to determine the root cause of the concern. If a repair attempt made the concern better but not eliminated or had no affect at all, and are requesting assistance from General Motors Technical Assistance Center record another Pico file and save it to the computer. After the new Pico Oscilloscope data has been saved email the data to General Motors Technical Assistance Center in the subject line include ?Vibration? ?Business Associate Code? and the last 8 of the Vehicle Identification Number. |
|---|---|
| PIP5075A | 2017-08-15. Service bulletin. SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY. This Preliminary Information communication provides information to the technician about vehicles that have a fluid leak from the rear of the vehicle. Technician will need to inspect the rear axle to determine if the leak is coming from the rear axle differential vent. If the leak is not coming from the rear axle differential vent follow published Rear Axle Lubricant Leak Diagnosis in Service Information. If the leak is coming from the rear axle differential vent replace the vent and hose. If the vehicle comes back with the same concern it is possible that the rear axle vent baffle has moved. |
| 05-03-08-002H | 2017-08-15. Service bulletin. SUSPENSION:FRONT:SHOCK ABSORBER. This informational bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak. |
| PIP5075A | 2016-05-09. Service bulletin. SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY. SUMMARY TO BE PROVIDED ON A FUTURE DATE. |
| SB-11084 | 2011-06-27. Service bulletin. SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY. GM: 2011 CADILLAC CTS. THERE IS A WINE OR HUM NOISE COMING FROM THE REAR DIFFERENTIAL ASSEMBLY AND THERE IS A PROCEDURE TO FIX IT. *RM |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.