2015 Cadillac CTS Technical Service Bulletins

1,781 technical service bulletins (TSBs) are on record for the 2015 Cadillac CTS. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10151821Nov 6, 2018Engine. 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.
• 10155101Nov 5, 2018Equipment. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formally known as a Product Allegation Resolution (PAR) claim.
• 10149057Oct 29, 2018Visibility (wipers, defrost, mirrors). This Preliminary Information communication provides the technician with steps to resolve the issue of an oily substance that may be found on the inside windshield surface, and appears to be leaking from the rear view mirror area. Technician will remove the moisture sensor and clean the glass and mounting bracket with alcohol wipe. If the gel separates from the sensor the sensor will need to be replaced.
• 10147401Oct 23, 2018Equipment. This Preliminary information communicates
• 10147367Oct 10, 2018Equipment. This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
• 10147364Oct 9, 2018Engine. This Preliminary information communicates additional diagnostics to assist the dealer technician with diagnosing and repairing trouble code P2097.
• 10147363Oct 9, 2018Engine, Equipment. This Preliminary information communicates to the technician where to find the engine identification tag and what information on that tag to use during programming of someengine control modules.
• 10147348Oct 3, 2018Fuel system. This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation.
• 10145490Sep 18, 2018Engine. This Preliminary Information communication provides information to the technician about vehicles that the engine stops running after extended idle with shifter in park. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle. If the customer exits the vehicle with the fob in their possession while the engine is running and the shifter is left in park, the…
• 10145489Sep 17, 2018Equipment. This Preliminary Information communication provides information to the technician about vehicles that have the Heater-Vent-Air Conditioning system discharge temperature to vary from side to side when the set temperature is set to the same value. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
• 10144476Aug 28, 2018Equipment. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
• 10144465Aug 20, 2018Equipment. This Preliminary Information communication provides the technician with information on the proper washing of the bright aluminum moldings to avoid the moldings from getting damaged. It is recommended that a non-alkaline solution be used for preparation & washing of the bright aluminum moldings.
• 10144454Aug 9, 2018Engine 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.
• 10144453Aug 9, 2018Engine, Engine cooling. This Preliminary Information communication provides information to the technician that Diagnostic Trouble Codes P0016, P0017, P0018, P0019, P0008 or P0009 may be set. Technician will need to inspect for loose timing chains or tensioners. If after following Service Information diagnostics the root cause is not found inspect the reluctor for the crankshaft sensor. If the reluctor has moved then replace crankshaft.
• 10144451Aug 8, 2018Engine. This Preliminary Information communication provides information to the technician about engine block of 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.
• 10145169Aug 3, 2018Electrical system, Equipment. 18025 - Customer Satisfaction Program - Certain vehicles may have been built with an owner manual and label which provide inaccurate information about one of the vehicle?s electrical centers. Remove and install the replacement electrical center fuse identification label. Print the applicable replacement owner manual section and insert into vehicle owner manual.
• 10143779Jul 25, 2018Engine cooling. This Preliminary Information communication provides the technician with the diagnosis and repair steps for a vehicle with a check engine light on with Diagnostic Trouble Code P015B or a reduced engine power message with Diagnostic Trouble Code P1101. Technician should look for a missing or damaged O-ring seal in the charge air cooler coupler.
• 10143762Jul 12, 2018Engine 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.
• 10143758Jul 9, 2018Equipment. This Preliminary Information communication provides information to the technician on how to tell the difference between the integrated center stack, the radio, the human machine interface, and the vehicle communication interface module. There are pictures of all the individual modules for identification purposes.
• 10143752Jul 3, 2018Visibility (wipers, defrost, mirrors). This Preliminary Information communication advises the technician the steps on diagnosing the concern. Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks.
• 10143751Jun 26, 2018Engine, Fuel system, Electrical system. 18029 - Special Coverage. Certain vehicles listed above, may have an inoperative purge solenoid that could lead to excessive fuel vapors entering the combustion chamber from the fuel tank. This condition could result in no start, idle stall, and possible drivability issues such as hesitation. The driver may see a check engine light, and may notice a ticking noise, and variation in idle speed.
• 10143449Jun 20, 2018Equipment. This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
• 10143443Jun 14, 2018Equipment. This Preliminary Information communication provides information to the technician about vehicles that may have an issue when using Bluetooth voice recognition with an iPhone. Technician should work with the customer to insure the phone contacts to not have any Emojis loaded to any contact.
• 10141371May 23, 2018Equipment, Electrical system. This Preliminary Information communication provides information to the technician about connectivity concerns when connecting an Apple device via USB cord. Technician should insure the customer is using an original equipment manufacturer Apple USB cable.
• 10141364May 18, 2018Engine cooling, Equipment. This Preliminary information communicates to the dealer an issue where the vehicle's engine may crank over unprompted and not start afterward. This is the result of hooking up the Active Fuel Injector Tool incorrectly on vehicles equipped with a direct fuel injection system. This Preliminary information instructs the dealer ofa repair kit they received that will prevent this issue when installed correctly.
• 10137599Apr 27, 2018Equipment. This informational bulletin provides information on Audio Volume Stuck High or Low with No DTCs and that this is a normal characteristic.
• 10137556Apr 20, 2018Electrical system. This informational bulletin explains to the dealer how to cover a possible customers mistake when a fuse has been blown.
• 10137589Apr 19, 2018Engine cooling. This informational bulletin provides information for engine oil life monitor operation calculation.
• 10137569Apr 18, 2018Brakes. This bulletin provides information on possible normal brake drag caused by sitting.
• 10137562Apr 13, 2018Visibility (wipers, defrost, mirrors). This PI bulletin provides information on Rear and Side Tempered Glass Spots (Quench Marks) and they are normal characteristic.
• 10137551Apr 13, 2018Engine cooling. This Bulletin provides inspection/diagnosis/correction information on a cold start misfire and/or rough idle and DTC P0300 that may also be set.
• 10137554Apr 9, 2018Transmission and drivetrain. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
• 10137560Apr 6, 2018Body and structure. This preliminary informational bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.
• 10137541Apr 5, 2018Engine cooling. This informational bulletin provides information on Hoot, Whine, Buzz, Hiss Noise Coming from Vehicle After Engine is Shut Off and that its a normal condition and no parts should be replaced.
• 10137537Apr 4, 2018Equipment. This informational bulletin provides information for use on a Product Assistance Claim (PAC), which is formally known as a Product Allegation Resolution (PAR) claim.
• 10137557Apr 3, 2018Equipment. This informational bulletin provides information to dealership personnel on policies regarding a Product Assistance Claim (PAC) within the Courtesy Transportation Assistance Program.
• 10137383Mar 28, 2018Transmission and drivetrain, Engine. This informational bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification.
• 10137386Mar 27, 2018Electrical system, Equipment. This technical bulletin provides information on Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the transport mode message on and off.
• 10137381Mar 26, 2018Tires. This bulletin contains information for the new tires that the vehicle is equipped with and that they are covered by General Motors against defects in material or workmanship under the New Vehicle Warranty (in Canada, the Base Warranty Coverage). For vehicles within this warranty period, defective tires will be replaced on a pro rata adjustment basis according to the published distance-based schedule.
• 10137380Mar 16, 2018Equipment. This informational bulletin provides information to dealership personnel on properly eliminating unwanted odors in vehicles.
• 10137182Mar 12, 2018Engine cooling. This Preliminary Information communication provides information to the technician of a complaint of a sag or hesitation when accelerating. The concern is present when coasting at low speeds of less than 15 miles per hour and then aggressively applying the throttle, or after making a hard stop followed by an aggressive throttle.
• 10137385Mar 9, 2018Equipment. This informational bulletin was created to inform that any accessories that are installed from the GM factory will be covered under the standard vehicle warranty and dealer installed accessories will be covered for a full year (12 months).
• 10137301Mar 8, 2018Engine, Equipment. This Bulletin provides graphics, information and guidelines for engine component wear that require repair and not engine replacement.
• 10137382Mar 7, 2018Equipment. This informational bulletin provides the dealership with how to prep a vehicle for delivery to the customer to aid in higher CSi scores.
• 10137297Mar 1, 2018Wheels, Brakes. This informational bulletin provides information for cleaning brake dust off of aluminum or chrome wheels.
• 10137375Feb 28, 2018Electrical system. This technical bulletin provides a procedure to properly reprogram an onstar module to correct a condition of Red LED, No WiFi Operation, and/or Limited OnStar® Module Functionality After OnStar Module Replacement for Another Condition.
• 10129903Feb 28, 2018Electrical system. This Preliminary information communicates additional diagnosticsand repairto assist in resolving a malfunction indicator lampillumination due to any combination of diagnostic trouble codes P0068 P0101 P0106 P0171 P0131 P0137 P0324 P0326 P0331 P0506.
• 10137343Feb 27, 2018Engine. This informational bulletin provides a revision for 09-06-04-015B (Vehicles Sitting Outside on Dealer Lots for Extended Periods with Hard Start/No Start Condition) to add the 2015-2018 model years.
• 10137283Feb 27, 2018Engine, Transmission and drivetrain. This Bulletin provides guidelines for Dealers required to contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns.
• 10129900Feb 22, 2018Engine cooling. 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.

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