Service bulletins for the 2012 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.
1565 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
Only bulletins with component: Engine are shown. Show all
| PIP4404F | 2017-08-15. Service bulletin. ENGINE. This Preliminary Information communication provides information to the technician vehicles with a slight rough idle. Technician should compare the concern with a like vehicle. If the concern is worse than a like vehicle, technician should follow published Service Information diagnosis and repair as necessary. |
|---|---|
| PIP5191A | 2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE. This Preliminary Information communication provides information to the technician about vehicles that have a ticking noise on cold start after sitting more than 6 hours. Technician will inspect the oil pump pick-up tube to block seal being compressed. It the seal is compressed replace the seal and retest. |
| PIP5163B | 2017-08-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; FUEL SYSTEM, GASOLINE; ENGINE. This Preliminary Information communication provides information to the technician about engine block that have a possible cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or blow by. Technician will need to inspect the engine for Cylinder damage or scoring, an out of round cylinder bore, Dirt intrusion, and Catalytic Converter failure. |
| PIP5209B | 2017-08-15. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that have Diagnostic Trouble Code P00C6 and/or P228C set. Technician will need to inspect the terminals at the Engine Control Module for fit and tension as well as the crimp to wire connection. Terminals to inspect in the ECM are connector x2 terminals 3, 18, and 19 for the fuel rail pressure sensor. Also connector x3 terminals 16 and 32 for the high pressure fuel pump. |
| PIP5029F | 2017-08-15. Service bulletin. ENGINE. This Preliminary Information communication provides information to the technician about vehicles that have a Malfunction Indicator Lamp on or engine misfire, rough idle, extended crank, or crank no start in some cases. Technician will need to perform published Service Information diagnostics. If technician finds carbon an upper engine and valve cleaning should be performed. |
| PIP5318 | 2017-08-15. Service bulletin. ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary Information communication provides information to the technician about vehicles that have a misfire event that usually occur at speeds of 70 miles per hour, 3rd Gear, and 3500 ? 4500 revolutions per minute. Dealer should advise customer to refer to TopTierFuel.com for availability in their respective area and fill with 91 or higher octane level fuel. |
| PIP5276E | 2017-08-15. Service bulletin. ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on or a low oil pressure indicated after an oil change. Technician may find Diagnostic Trouble Code P0521. Inspect the engine for any oil leaks and repair if need. Technician should change the engine oil and replace the oil filter using a PF48e type filter. |
| PIP4959E | 2017-08-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; 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. |
| PIP5282 | 2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication advises the technician about the calculation and operation of the engine oil life monitor. The monitor calculates the percent of oil life remaining, based on 3 pathways. The first pathway for oil life calculation is engine revolutions. The second pathway for oil life calculation is the mileage form the last rest for all General Motors powertrains except the Volt. The third pathway for oil life calculation is the amount of time the oil is in the engine. The Volt uses a 2 year timer instead of 1 year. It also uses the engine revolution counter. It does not use the mileage pathway to count down. |
| PIP5264 | 2017-08-15. Service bulletin. ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary Information communication provides information to the technician on the step to diagnose and repair vehicles that may have engine misfire and check engine light with any or all cylinder misfires only on deceleration. Technician will need to remove the accessory belts and drive or brake stall at signature RPM. If the concern is gone inspect for debris in the belt or pulleys causing a jump and false misfires. Also lift the engine to unload the engine mounts and test again. If concern is gone then inspect for a ground out concern with the mounts causing false misfires. |
| PIP5257 | 2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have oil mixed in with the engine coolant. Technician will need to inspect the oil cooler if equipped for possible leaking into the cooling system through the radiator. If no issue found replace the engine as well as all rubber coolant hoses. |
| 09-06-04-026M | 2017-08-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE. This informational bulletin provides information on identifying non-GM (aftermarket) engine calibrations for gasoline engines using Tech 2 or GDS 2. |
| PIP5232C | 2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. This Preliminary Information communication provides information to the technician about gasoline powered cars, mid-size trucks, light duty trucks, and heavy duty trucks with premature catalytic converter failures. It is recommended to inspect for a poor crimp on the coil grounds ring terminal at the engine block for the bank with the concern and repair the wire. |
| PIP5276F | 2017-08-15. Service bulletin. ENGINE. This Preliminary Information communication provides steps the technician will uses to diagnose and repair vehicles that have low oil pressure after an oil change with the engine Regular Production Option Code L20, L77, L94, L96, L99, L9H, LC8, LC9, LH9, LMF, LMG, LY6, or LZ1. Vehicle may have Service Engine Soon lamp with Diagnostic Trouble Code P0521 or Low Oil Pressure message on the instrument panel. Dealer will need to determine if bulletin 10-06-01-008 was completed. If the bulletin was performed inspect the left rocker cover. Dealer will insure the left rocker can hold water without leaking. If leaks are found apply room temperature vulcanization silicone to the rocker cover if possible or replace the left rocker cover. |
| 11-00-90-001A | 2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides information on the proper oils to use on GM vehicles including information regarding the differences of the Dexos oils. |
| 00-06-01-026G | 2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides information to technicians regarding intake manifold inspection/replacement after severe internal engine damage. |
| 12-06-01-003B | 2017-08-15. Service bulletin. ENGINE. This informational bulletin provides information for repairing engine front cover oil leak, sealing surface preparation and applying RTV sealant. |
| 15-00-90-001 | 2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides technicians with diagnostic tips for preventing oil leaks after changing oil and filter. |
| 07-06-04-019E | 2017-08-15. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This technical bulletin provides repair information for repairing the IP to body harness connector to correct a customer concern for intermittent Malfunction Indicator Lamp (MIL) illuminated with Reduced Engine Power displayed and DTC P2138 set. |
| 15-00-89-004A | 2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered seepage. |
| 00-06-01-026F | 2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides information to technicians regarding intake manifold inspection/replacement after severe internal engine damage. |
| 06-00-89-026L | 2017-08-15. Service bulletin. SERVICE BRAKES; EQUIPMENT:ELECTRICAL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; EQUIPMENT:APPLIANCE:AIR CONDITIONER; POWER TRAIN:AXLE ASSEMBLY; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. This warranty administration bulletin provide policy information on a revised customer concern not duplicated/verified labor operation numbers and how to submit CCND. |
| 06-06-01-010B | 2017-08-15. Service bulletin. EQUIPMENT:MECHANICAL; ENGINE AND ENGINE COOLING. This informational bulletin provides information on close-coupled converter and engine replacement. |
| PIP5095D | 2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon and may also have an oil or coolant leak. Technician may find coolant or oil in a spark plug tube. If the Spark Plug Tube is leaking and it is determined that the oil or coolant is not coming from a leak above the spark plug then replace the cylinder Head, spark plug and coil. |
| PIP5029H | 2017-08-15. Service bulletin. ENGINE. This Preliminary Information communication provides information to the technician about vehicles that have a Malfunction Indicator Lamp on or engine misfire, rough idle, extended crank, or crank no start in some cases. Technician will need to perform published Service Information diagnostics. If technician finds carbon, an upper engine and valve cleaning should be performed. Update added part numbers for the cleaner and model years. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.