Service bulletins for the 2015 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.
1797 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| PIC5491K | 2018-01-16. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that have an OnStar system that will not power up. Technician should turn off the ignition and cancel retained accessory power. After the vehicle has powered down remove power to the OnStar module for five minutes. After the power has been removed for five minutes, if the OnStar system is working release the vehicle. If the OnStar system is still inoperative continue with published Service Information diagnostics. |
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| PIP4959G | 2018-01-16. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician with information regarding high misfire rates always on #1 cylinder. A customer may complain of misfires or roughness on cold start up with a P0300 diagnostic trouble code. Technician is to add coolant dye to the system and run the engine through warm up to circulate the dye. Pressurize the cooling system after a cold soak and inspect the cylinder with a bore scope for coolant dye. Dye is used to identify coolant over residual fuel being that might be left in the cylinder. The technician is not to replace the cylinder head as it will not correct this concern. In some cases it is necessary to remove the head for inspection. Do not replace the engine for small surface pock marks or a pitting appearance this is normal and do not connect to coolant passages. Usually if porosity is present there will be a break in the carbon ring. Only replace the engine if true porosity is found. Technician is to call Product Quality Center with the latest version of bulletin 02-07-30-029 if porosity is found and engine replacement is required. |
| PIC5839D | 2018-01-16. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary Information communication provides information to the technician about vehicles that may have a clock that is slow to update while driving when the clock auto set feature enabled. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle. |
| GCUS-9-1091 | 2017-12-22. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 15038 - Dealer Message Only - Not a Field Action. Select 2015 model year vehicles will receive a software download via OnStar® to update the software for the Electronic Climate Control (ECC) system. This over-the-air update is being piloted on a few hundred customer vehicles in the mid-October thru mid-December timeframe. Pending the successful completion of the pilot, rollout to the general vehicle population will begin in January 2016. |
| 02-07-30-029Y | 2017-12-22. Service bulletin. STRUCTURE. This informational bulletin provides information on the PQC assembly replacement process - for dealers required to contact PQC prior to replacing an assembly (U.S. and Canada only). |
| 01-06-01-011I | 2017-12-22. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption. |
| 08-08-44-029F | 2017-12-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides policy information on an updated warranty and policy exchange program for electronic products through GM authorized Electronic Service Centers (ESCs) (U.S. and Canada). |
| PI0799A | 2017-12-22. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL. This preliminary informational bulletin adds the 2014 - 2016 model years to cleaning information to correct a customer concern of seeing a white film/residue on the IP pad and/or door trim panels. |
| PI1360D | 2017-12-22. Service bulletin. PARKING BRAKE. This preliminary informational bulletin adds the 2015 Chevrolet Colorado and GMC Canyon to diagnosis and repair information to correct a customer concern of alleged no park, vehicle rolls in park or park will not hold. |
| 15-NA-030 | 2017-12-22. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information to dealership personnel on the use of non-GM approved battery chargers and booster packs. |
| PIE0348 | 2017-12-22. Service bulletin. ELECTRICAL SYSTEM. This engineering information bulletin is requesting information from dealers on a customer concern of loss of audio, chimes or turn signal click/clack with DTC U0180 or B1325 sym03 set. |
| 06-00-89-031C | 2017-12-22. Service bulletin. POWER TRAIN; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information to dealership personnel on proper engine and automatic transmission/transaxle identification. |
| 15-06-03-001A | 2017-12-22. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information that may be useful in diagnosing/testing batteries that have set for a long period of time and/or set in cold weather climates to correct a customer concern of symptoms that include, but not limited to, a slow or no crank condition that may be caused by a discharged battery. |
| 15-NA-017 | 2017-12-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides policy information on Causal Part requirements for transactions submitted to GM for payment. |
| 08-08-44-029E | 2017-12-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides policy information on an updated warranty and policy exchange program for electronic products through GM authorized Electronic Service Centers (ESCs) (U.S. and Canada). |
| 05-03-07-009H | 2017-12-22. Service bulletin. WHEELS. This warranty administration bulletin provides retail, wholesale and fleet personnel with General Motors recommendations for customer concerns related to wheel alignment. |
| PI0653C | 2017-12-22. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. This preliminary informational bulletin provides dealership personnel with policies and procedures regarding damaged, disassembled or improperly packaged turbochargers returned to Warranty Part Center. |
| 080849018E | 2017-12-22. Service bulletin. EQUIPMENT. This technical bulletin provides a procedure on cleaning scratches or scuffs on the interior trim or console panels using GM authorized polishes and waxes and advising that any damage may not covered by warranty. |
| 050308002F | 2017-12-22. Service bulletin. SUSPENSION. This informational bulletin was created to aid the technician in diagnosing the difference between a shock or strut that has a fluid residule from a possible external source from a leaking shaft seal. |
| PI1266 | 2017-12-22. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This preliminary bulletin explains to the technician to use the vin when reprogramming the radio using the techline/service programming systems. |
| PI1213A | 2017-12-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This preliminary bulletin provides information for the technician on the correct ways and areas of a vehicle, it can be hoisted without causing damage. |
| PI0373B | 2017-12-22. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES. This preliminary bulletin provides a procedure on how to reset the power folding mirriors after they been folded manually, to fix the customers concern of the mirriors shaking or fluttering at normal driving speeds. |
| PI0917D | 2017-12-22. Service bulletin. SERVICE BRAKES, AIR:DISC:PADS. This preliminary informational bulletin provides information on applying the correct amount of copper paste to the brake pad to correct the customers concern of a brake squeal or noise. |
| 05-00-89-029C | 2017-12-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This preliminary bulletin provides a information to the dealer for the requirements need for equipment. |
| 12-00-89-002B | 2017-12-22. Service bulletin. EQUIPMENT. This informational bulletin provides the dealer with information on what to do when requesting a new key code for the customer. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.