2025 GMC Sierra 3500 Technical Service Bulletins

362 technical service bulletins (TSBs) are on record for the 2025 GMC Sierra 3500. 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.

• 11021303Jul 28, 2025Other or unknown. This Preliminary information communicates the possibility of DTC P30BF failing on low mile vehicles due to the possibility of the cylinder 1/2 sliding barrel binding on intake camshaft.
• 11020960Jul 24, 2025Other or unknown. This Preliminary information communicates to dealers steps to follow to obtain an IOK radio.
• 11020816Jul 18, 2025Other or unknown. This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
• 11020809Jul 18, 2025Other or unknown. This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
• 11020811Jul 16, 2025Other or unknown. This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
• 11020688Jul 8, 2025Other or unknown. This Preliminary Information communicates direction for different audio issues with RPO UQA, UQF, UQS, or NKD
• 11019992Jun 30, 2025Other or unknown. This Preliminary Information communicates direction for different audio issues with RPO UQA, UQF, UQS, or NKD
• 11019985Jun 30, 2025Other or unknown. This Preliminary information communicates to dealers steps to follow to obtain an IOK radio.
• 11019820Jun 29, 2025Other or unknown. This Preliminary information communicates Engineering is investigating a no audio issue.
• 11019875Jun 28, 2025Other or unknown. Pi was created to advise dealers of an issue GM Engineering is investigating where the mute and home buttons are inop on radio display
• 11019872Jun 26, 2025Other or unknown. This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
• 11019831Jun 20, 2025Other or unknown. This Preliminary information communicates to dealers steps to follow to obtain an IOK radio.
• 11019670Jun 20, 2025Other or unknown. Amendments to the Song-Beverly Act (SBA) California warranty law provides vehicle owners with an opportunity to submit a written notice to GM before filing a lawsuit seeking a vehicle repurchase. If such a notice is not provided to GM, then the vehicle owner is prevented from seeking civil penalties in litigation. Vehicle owners of the affected vehicles will be mailed an owner’s manual and warranty insert…
• 11019846Jun 19, 2025Other or unknown. This Preliminary information communicates a diagnostic tip on how to resolve a issue of the horn sounding when vehicle doors are being closed and the key in vehicle reminder set to off.
• 11019845Jun 17, 2025Other 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.
• 11019591Jun 17, 2025Other or unknown. Amendments to the Song-Beverly Act (SBA) California warranty law provides vehicle owners with an opportunity to submit a written notice to GM before filing a lawsuit seeking a vehicle repurchase. If such a notice is not provided to GM, then the vehicle owner is prevented from seeking civil penalties in litigation. Vehicle owners of the applicable vehicles will be mailed an owner’s manual and warranty insert…
• 11019827Jun 12, 2025Other or unknown. This PI involves DTC U3000 SYM49 Set falsely In The Serial Data Gateway Module and dealerships are to reset the module by cycling the battery.
• 11019822Jun 12, 2025Other or unknown. This Preliminary information communicates an issue with the SES MIL and DTC P062B P060C and engineering is currently investigating.
• 11019821Jun 12, 2025Other or unknown. This Preliminary information communicates an issue with the SES MIL and DTC P062B P060C and engineering is currently investigating.
• 11019823Jun 10, 2025Other or unknown. This Preliminary information communicates assistance in locating the Rear seat belt comfort guides in the parts catalog.
• 11019693Jun 9, 2025Other or unknown. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
• 11026104Jun 7, 2025Wheels. This service bulletin provides information on Tire Sidewall Irregularities.
• 11026101Jun 5, 2025Engine. This bulletin provides a procedure to check and replace the oil cooler seals before just replacing the oil cooler, for an oil leak.
• 11026017Jun 5, 2025Engine. This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
• 11026024Jun 3, 2025Transmission and drivetrain. This bulletin helps aid the tech in possible 10L100 transmission noise that may be normal or abnormal depending on the concern noted.
• 11026022Jun 2, 2025Exterior lighting. This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.
• 11019074May 30, 2025Other or unknown. This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
• 11019073May 30, 2025Other or unknown. This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
• 11019072May 30, 2025Other or unknown. This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
• 11019065May 29, 2025Other or unknown. This Preliminary information communicates to dealers steps to follow to obtain an IOK radio.
• 11018661May 23, 2025Other or unknown. This PI communicates to dealer technicians that DTC P060C is under investigation and to clear the DTC and return the vehicle to the customer.
• 11018660May 22, 2025Other or unknown. This Preliminary information communicates that this concern is for assist step lighting is not turning on when entering vehicle or unlocking vehicle using fob. Engineering is investigating.
• 11018659May 22, 2025Other or unknown. This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.
• 11023368May 17, 2025Visibility (wipers, defrost, mirrors), Electrical system. This informational bulletin provides information for dealers/technicians on power folding mirrors do not fold at the same speed.
• 11018496May 17, 2025Other or unknown. This Preliminary information communicates that you may notice a black screen on their radio display. This can happen for a period of a couple seconds or the entire ignition cycle. Engineering is aware of the issue and investigating.
• 11018494May 17, 2025Other or unknown. This PI communicates to dealer technicians that DTC P060C is under investigation and to clear the DTC and return the vehicle to the customer.
• 11024486May 16, 2025Engine, Electrical system. This bulletin advises the tech to inspect deeper into what may be to main cause of an engine failure.
• 11023369May 16, 2025Transmission and drivetrain. This service bulletin advises the technician to check if the transmission cooler lines are twisted to correct customer concerns of Harsh Shift, Shudder, Surge, Stall, Transmission Overheating and/or High Transmission Fluid Temperature.
• 11024485May 15, 2025Engine. The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
• 11018488May 14, 2025Other or unknown. This Preliminary information communicates to dealers steps to follow to obtain an IOK radio.
• 11024501May 13, 2025Electrical system. This service bulletin provides information on the radio software related issues to update the radio to the latest software version Y177.
• 11023057May 10, 2025Transmission and drivetrain. This engineering information (EI) closure ends the need for gathering further information from field in regard to fluid leaking at the output seal and/or leaking at the front slip yoke (welch plug leak).
• 11022874May 10, 2025Steering, Electrical system. This service bulletin provides information and the condition correction on the "Service Steering Column Lock" message and/or those who are unable to move the steering wheel after starting the vehicle.
• 11024500May 9, 2025Electrical system, Air bags. This service bulletin provides information on the Service Safety Restraint Message displayed on the DIC Airbag malfunction indicator illuminated.
• 11023051May 8, 2025Forward collision avoidance. This service bulletin provides information for the technicians to use a Customer Concern Verification sheet to facilitate the questions needing to be answered by the customer regarding Automatic Emergency Braking (AEB) issues.
• 11022868May 8, 2025Body and structure. This informational bulletin provides information on Anti-Chip Coating Appearance.
• 11020262May 8, 2025Transmission and drivetrain. This bulletin provides a procedure to add a shim to the rear axle to change the pitch of said axle to correct the angle of the axle to pinion variance.
• 11020259May 8, 2025Transmission and drivetrain. This technical bulletin provides a procedure to inspect the front pump of the transmission for a possible leak.
• 11018437May 8, 2025Other or unknown. This Preliminary information communicates to the technicians that this audio concern is a software issue and to not replace any parts at this time.
• 11020254May 7, 2025Engine. This service bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in other states.

← All problems reported for the 2025 GMC Sierra 3500