2026 Chevrolet Suburban 1500Service bulletins

2026 Chevrolet Suburban 1500 Technical Service Bulletins

207 technical service bulletins (TSBs) are on record for the 2026 Chevrolet Suburban 1500. 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.

11028948Feb 19, 2026Other or unknown. PI to explain normal operation for a concern that the outside rearview mirrors may not fold when the doors are locked, due to the personalization settings for Auto Door Unlocking.
11028935Feb 17, 2026Other or unknown. This preliminary PI was created to advise technians in the field that they will not be able to perform a GDS automated bleed with the scan tool dues to a issue with the software in the scan tool
11028854Feb 11, 2026Other or unknown. This PI identifies an issue where a loose Body Control module ground on the A pillar could cause various electrical issues related to the hood latch or a door latch
11028731Feb 11, 2026Other or unknown. Certain vehicles listed above may have a condition in which hard braking may unexpectedly engage. Dealers will re-program the IPM or Front View Camera depending on what the vehicle is equipped with.
11028675Feb 10, 2026Other or unknown. Certain vehicles listed above may have a condition in which hard braking may unexpectedly engage. Dealers will reprogram the Image Processing Module.
11028703Feb 7, 2026Other or unknown. This is a diagnostic PI to assist on a repair to fix a concern for the HVAC temperature doors binding at times
11028697Feb 3, 2026Other or unknown. This preliminary information communicates an issue with the key fob buttons inoperative and how to resync the fobs back to the vehicle.
11027948Jan 30, 2026Other or unknown. This preliminary PI was created to advise techniians in the field that they will not be able to perform a GDS automated bleed with the scan tool dues to a issue with the software in the scan toolThis preliminary PI was created to advise techniians in the field that they will not be able to perform a GDS automated bleed with the scan tool dues to a issue with the software in the scan tool
11027925Jan 29, 2026Other or unknown. This preliminary information communicates an issue with the key fob buttons inoperative and how to resync the fobs back to the vehicle.
11027932Jan 27, 2026Other or unknown. This PI provides diagnostics tips to dealership techs when trying to diagnose a CAN Bus communication issue after an event like a lightning strike, battery jump started backwards, failure over the air update, etc.
11027933Jan 26, 2026Other or unknown. This preliminary PI was created to advise techniians in the field that they will not be able to perform a GDS automated bleed with the scan tool dues to a issue with the software in the scan tool
11027885Jan 24, 2026Other or unknown. This Preliminary information communicates to have the dealer verify the vehicle has RPO TRG - Trailer Camera Provisions to ensure the vehicle is equipped with Turn Signal Activated Camera View.
11027882Jan 23, 2026Other or unknown. This Preliminary information communicates a issue where the park assist module can set current communication dtc's due to a timing issue and it may have nothing related to the customers complaint. A software update will be available to repair these flase DTC's
11027880Jan 22, 2026Other or unknown. This preliminary information communicates an issue with the DRL LED strips flickering and dealer are to replace the lighting control module.
11027888Jan 20, 2026Other or unknown. This P/I is advising that the TCM should not be replaced for DTC P16F4 and to request FSE assistance for a TCM data pull.
11027877Jan 20, 2026Other or unknown. This preliminary information communicates an issue with the key fob buttons inoperative and how to resync the fobs back to the vehicle.
11027698Jan 16, 2026Other or unknown. This PI Communications information on an alternative product dealers can use to perform 19-NA-255: Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting due to issue with getting product from current supplier listed in the bulletin.
11027697Jan 16, 2026Other or unknown. This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
11027696Jan 16, 2026Other or unknown. This is a diagnostic PI to assist on a repair to fix a concern for the HVAC temperature doors binding at times
11027702Jan 15, 2026Other or unknown. This Preliminary Information is to inform technicians to not replace any parts at this time and to use the work around provided. When a fix is available, this PI will be updated to a bulletin.
11027694Jan 15, 2026Other or unknown. This Preliminary information communicates an issue with high resistance in the glass breakage loop that could cause a dead battery or unwanted theft alarm. Dealers are to inspect the glass breakage loop.
11027692Jan 15, 2026Other or unknown. This Preliminary information communicates an issue with blower motor speed changing when air flow is blocked by snow.
11027691Jan 15, 2026Other or unknown. This Preliminary Information is to inform technicians to not replace any parts at this time and to use the work around provided. When a fix is available, this PI will be updated to a bulletin.
11027690Jan 15, 2026Other or unknown. This preliminary information communicates an issue with the DRL LED strips flickering and dealer are to replace the lighting control module.
11027701Jan 14, 2026Other or unknown. This PI advised dealer technicians of possible causes of diesel fuel contamination in gasoline powered vehicles and advises of warranty direction.
11027686Jan 12, 2026Other or unknown. This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements. They should follow the notes mentioned prior to anything being replaced.
11027607Jan 8, 2026Other or unknown. This preliminary information communicates an issue with the DRL LED strips flickering and dealer are to replace the lighting control module.
11027601Jan 8, 2026Other or unknown. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
11027600Jan 7, 2026Other or unknown. This Preliminary Information communication provides information to the technician about customers that may request the factory Integrated Trailer Brake Controller Regular Production Option Code (JL1) be installed on their Full-Size Pickup or SUV when the vehicle was not ordered with the option. Dealer should advise the customer it cannot be added to the vehicle.
11027598Jan 5, 2026Other or unknown. This Preliminary information communicates an issue with a service keyless entry message caused by aftermarket door handle covers and they should be removed.
11027597Jan 5, 2026Other or unknown. This PI communicates an issue where the Brake System Control Module DTC: U0028-88 and U0037-88 diagnostics are backwards and follow the diagnostic procedure for U0037 if U0028 is set and vice versa.
11026923Dec 31, 2025Other or unknown. This Preliminary information communicates to dealers a procedure to reset the radio.
11026727Dec 19, 2025Other or unknown. This PI communicates information that the Collision / Detection Systems will revert to default setting of Alert and Brake after an Ignition Cycle due to an Engineering change.
11026714Dec 15, 2025Other or unknown. This preliminary information communicates an issue with the DRL LED strips flickering and dealer are to replace the lighting control module.
11026853Dec 12, 2025Other or unknown. • Fixes to help ensure proper functionality for Brake Assist. • Fixes to help ensure successful vehicle software updates. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
11026600Dec 12, 2025Other or unknown. This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements. They should follow the notes mentioned prior to anything being replaced.
11026599Dec 12, 2025Other or unknown. This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display
11026605Dec 11, 2025Other or unknown. This preliminary information communicates an issue with the DRL LED strips flickering and dealer are to replace the lighting control module.
11026492Dec 4, 2025Other or unknown. This Preliminary information communicates the Heavy Fuel Usage message in the DIC is normal due to low fuel range and current driving habits, or low fuel range and vehicle is idling.
11026075Nov 26, 2025Other or unknown. This preliminary information communicates an issue with programming error while try to complete N252521591 and provide info on how to complete the programming.
11026071Nov 26, 2025Other or unknown. This Preliminary information communicates an issues with the HVAC making a hum buzz noise when the blower is set to a higher speed. Engineering is working on a new HVAC door seal material to correct the noise.
11026069Nov 26, 2025Other or unknown. This PI communicates an issue where the Brake System Control Module DTC: U0028-88 and U0037-88 diagnostics are backwards and follow the diagnostic procedure for U0037 if U0028 is set and vice versa.
11026062Nov 25, 2025Other or unknown. This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements. They should follow the notes mentioned prior to anything being replaced.
11026067Nov 24, 2025Other or unknown. This preliminary information communicates an issue with the key fob buttons inoperative and how to resync the fobs back to the vehicle.
11025755Nov 20, 2025Other or unknown. This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s vehicles that exhibit vibration conditions without utilizing the support of General Motors Technical Assistance Center.
11025653Nov 20, 2025Other or unknown. Certain vehicles listed above may have a condition in which hard braking may unexpectedly engage. Dealers will reprogram the Image Processing Module.
11025647Nov 19, 2025Other or unknown. Certain vehicles listed above may have a condition in which hard braking may unexpectedly engage. Dealers will reprogram the Image Processing Module.
11025584Nov 14, 2025Other or unknown. This preliminary information communicates an issue with a Service Brake system message and DTC C0597 C055F. Dealers are to replace the brake master cylinder.
11025580Nov 13, 2025Other or unknown. This is a diagnostic PI to assist on a repair to fix a concern for the HVAC temperature doors binding at times
11025574Nov 13, 2025Other or unknown. This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display

← All problems reported for the 2026 Chevrolet Suburban 1500

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.