2014 GMC Sierra Denali Technical Service Bulletins

389 technical service bulletins (TSBs) are on record for the 2014 GMC Sierra Denali. 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.

• 10113420Feb 14, 2017Electrical system. This Preliminary Information communication provides information to the technician about vehicles that may have a service 4 wheel drive message and the transfer case is stuck in neutral. Technician may find Diagnostic Trouble Code C0398 set in the Transfer Case Control Module. Technician should verify if the vehicle was dinghy towed the vehicle using the owner’s manual procedure. If the vehicle has a C0398…
• 10113407Feb 8, 2017Seats, Equipment. This Preliminary Information communication provides information to the technician about vehicle that may have a front driver's or passenger's seat back may lean or be turned outward. Technician will need to remove the seat bottom trim cover and reinstall it completely and squarely to the cushion to correct the concern.
• 10113406Feb 8, 2017Body and structure. This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables. Technician should not replace any parts for this concern. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.
• 10130559Jan 26, 2017Seats. 17018-Customer Satisfaction Program. Certain vehicles, equipped with power front passenger seat adjuster that was previously replaced, may have a condition in which the front passenger seat can be adjusted to a position beyond the occupant design travel range. Dealers will inspect front passenger seat tracks and, as necessary, install the seat stop(s).
• 10130553Jan 18, 2017Equipment. 44180 01 - Customer Satisfaction - Certain vehicles may have key codes which were inappropriately handled by a third party which could increase the risk of vehicle theft. Dealers are to replace all applicable keys and lock cylinders with new key configurations.
• 10126151Aug 22, 2016Brakes. 17650 - Customer Advisory Letter. If this condition affects your vehicle you may noticed the CNG odor or hear a hissing sound. To check for this condition, please have a certified CNG technician inspect the manual shut-off valve in accordance with GM Service Information procedures for CNG leakage and damage. This inspection should be performed regularly as part of the updated maintenance schedule.
• 10088863Jun 22, 2016Equipment, Engine cooling. This informational bulletin is a supplement to the duramax diesel coolant system fill and head gasket replacement procedure found in the service information.
• 10137758Apr 11, 2016Equipment. 29030 ? Customer Satisfaction Program. These vehicles may have been built with grease applied to the trailing arm to knuckle attachment bolts. Grease added under the shoulder of the bolts could result in the bolts slipping over time. If the bolts loosen there would be an increasing amount of noise from the rear suspension. Left unaddressed, the upper bolts could potentially back out completely. This would result in…
• 10096141Feb 18, 2016Equipment. This preliminary information communication provides information to the technician about vehicles that may have an outside air temperature inoperative. To perform an instant update of the ambient temperature sensor, press and hold the recirc button and air conditioning button on the heater-vent-air conditioning control head simultaneously. It is also possible to perform this by using a scan tool in special function…
• 10246963Jan 13, 2016Equipment. Changing Turn-By-Turn Voice Response To Metric Or English Units
• 10250067Jan 1, 2016Equipment. Infotainment System Will Not Return to Media After Bluetooth Call Ends
• 10201115Dec 1, 2015Equipment, Other or unknown. OnStar Voice Fallback Number Update
• 10201098Dec 1, 2015Transmission and drivetrain, Engine. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
• 10190503Dec 1, 2015Engine, Transmission and drivetrain. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
• 10123496Sep 18, 2015Engine cooling. 15457 - Special Coverage. Some 2010-2015 Chevrolet Express and GMC Savana vehicles and 2011-2015 Chevrolet Silverado HD and GMC Sierra HD vehicles that are equipped with 6.6L Duramax Diesel engines (RPO LML or LGH) may contain a leak in the seal between the engine-exhaust down pipe and the engine-exhaust pipe. If a leak is present, the intermittent regeneration of the diesel-particulate filter may cause small…
• 10138124Jul 14, 2015Body and structure. This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only)
• 10094982Jan 21, 2015Equipment, Engine, Transmission and drivetrain. This preliminary information communication provides information to the technician that some vehicles may have a service engine soon lamp, engine misfire on cylinder 1, 4, 6, or 7 and/or tick noise. Technician will follow service information diagnosis first. If service information diagnosis does not isolate the cause of this concern perform a cylinder deactivation active fuel management system compression test in…
• 10095162Jan 12, 2015Equipment. This preliminary information communication advises the technician the diesel oxidation converter part restriction has ended. Dealer can now order the parts through the regular customer care and aftersales parts process.
• 10250028Dec 18, 2014Electrical system, Fuel system. Special Return - Fuel Tank Module Kit: ACDelco Part Number M10256 (select date codes)
• 10246515Dec 18, 2014Electrical system, Fuel system. Special Return - Fuel Tank Module Kit: ACDelco Part Number M10256 (select date codes)
• 10247716Dec 1, 2014Equipment, Electrical system. J-35616-64B Terminal Test Probe / Replacement Terminal / Terminated Lead.
• 10247214Dec 1, 2014Electrical system. Chassis Electronic Control Module Internal Contamination
• 10247061Dec 1, 2014Electrical system. J-35616-64B Terminal Test Probe / Replacement Terminal / Terminated Lead.
• 10246834Dec 1, 2014Engine cooling. PSR-Overheated Exhaust Components - Equipped with 4.3L Engine (LV1/LV3)
• 10245938Dec 1, 2014Electrical system. OnStar Module Does Not Support All B101D Symptom Codes.
• 10252163Nov 1, 2014Equipment. XM Audio Traffic And Travel Link Availability And Operation.
• 10250082Nov 1, 2014Transmission and drivetrain. Information on Driveline Clunk Noise
• 10247748Nov 1, 2014Electrical system. Speedometer Needle Accuracy Information.
• 10247650Nov 1, 2014Electronic stability control. Unwanted Stability Activation and/or C0710.
• 10247063Nov 1, 2014Visibility (wipers, defrost, mirrors). A/C Blows Warm Or Poor Performance.
• 10246569Nov 1, 2014Transmission and drivetrain. Information on Driveline Clunk Noise
• 10245951Nov 1, 2014Equipment. Canadian Customers Unable To Place Calls And Turn By Turn Inoperative In The United States.
• 10245741Nov 1, 2014Equipment. dealer Empowerment Labor Operations and Customer Enthusiam
• 10245289Nov 1, 2014Electronic stability control. Unwanted Stability Activation and/or C0710.
• 10245769Jul 1, 2014Suspension, Tires, Wheels. Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip
• 10248444Jun 30, 2014Equipment. Vehicle Recalls
• 10247767Jun 1, 2014Equipment. Unwanted Alarm Sounding (GM Accessory Inclination Sensor Mounting)
• 10137914May 16, 2014Equipment. This informational bulletin provides tips on how to care for the interior of the vehicle using products.
• 10246505May 1, 2014Other or unknown, Electrical system. Unable to Clear BCM DTCs After Completing Repair
• 10250013Apr 1, 2014Electrical system. High Voltage Safety ? High Voltage Disabling
• 10246500Apr 1, 2014Equipment, Air bags. High Voltage Safety ? High Voltage Disabling
• 10247681Mar 1, 2014Equipment. Information On Requests To Add OnStar Bluetooth Option.
• 10245950Mar 1, 2014Equipment. Canadian Customers Unable To Place Calls In The United States
• 10073396Mar 1, 2014Equipment. Summary to be provided on a future date.
• 10250084Feb 1, 2014Wheels. Refinishing Aluminum Wheels
• 10250080Feb 1, 2014Visibility (wipers, defrost, mirrors). Air Conditioning Odor
• 10246571Feb 1, 2014Wheels. Refinishing Aluminum Wheels
• 10246567Feb 1, 2014Visibility (wipers, defrost, mirrors). Air Conditioning Odor
• 10245771Feb 1, 2014Wheels, Other or unknown, Tires. Proper Wheel Installation and Wheel Torque Techniques
• 10245768Feb 1, 2014Wheels, Suspension, Tires. Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip

← All problems reported for the 2014 GMC Sierra Denali