Technical Service Bulletins
Search 172,063 manufacturer communications covering 880 vehicle makes from 1955 to 2025.
Showing 722 bulletins for GMC
23-NA-140
Aug 14, 2023
160000 STRUCTURE
This informational bulletin offers Information on Rear Tow Hook Mounting Bolt Bottoms Out Before Achieving Torque.
N23-240448
Aug 9, 2023
118000 ELECTRICAL SYSTEM:SOFTWARE
'(There may be future updates under this same release number.) Your GMC Hummer EV keeps getting better. This software update includes the following if your vehicle is equipped: Refinements: a??Updates made to the long range radar fun
N23-240574
Jul 10, 2023
110000 ELECTRICAL SYSTEM
(There may be future updates under this same release number.) Your GMC Hummer EV keeps getting better. This software update includes the following if your vehicle is equipped:a?? Refinements: Updates made to the overall vehicle software
PIT6030
Jun 12, 2023
353000 EQUIPMENT:ELECTRICAL
This Preliminary information communicates a software anomaly that will cause the liftgate to close at a higher than expected speed after a 12V battery disconnect and how to temporary resolve the concern before the updated software is releas
N232396992
Jun 2, 2023
350000 EQUIPMENT
Customer Satisfaction Program. Certain vehicles may have a condition where the Super Cruise map is out of date. Dealers are to replace the serial data gateway and automated driving mapping modules and reprogram the image processing and the
PIT6028
Jun 2, 2023
117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
This Preliminary information communicates information on a blank or inoperative Instrument Panel Cluster with repair information on reprogramming the Cluster to correct the concern.
N232396990
May 15, 2023
350000 EQUIPMENT
Customer Satisfaction Program. Certain vehicles may have a condition where the Super Cruise map is out of date. Dealers are to replace the serial data gateway and automated driving mapping modules and reprogram the image processing module.
N232396991
May 15, 2023
350000 EQUIPMENT
Customer Satisfaction Program. Certain vehicles may have a condition where the Super Cruise map is out of date. Dealers are to replace the automated driving mapping module and reprogram the image processing module.
N232397070
May 15, 2023
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
Service Update - Certain vehicles may have a condition in which the vehicle has the incorrect endgate cable installed. Dealers are to replace the endgate cable.
N232401090
May 1, 2023
350000 EQUIPMENT
Service Update. On certain vehicles, equipped with an accessory power tonneau cover (RPO 5KM), the power tonneau cover may be inoperative. Dealers are to replace the electronic control unit.
PIT5925B
Apr 24, 2023
062000 ENGINE AND ENGINE COOLING:COOLING SYSTEM
This Preliminary information communicates to the field that water hitting the cooling fans can set a false DTC: P0494 for the 2022-2024 HUMMER EV.
PIT5859A
Apr 21, 2023
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This Preliminary information communicates that Parts that the ECS are on Restriction
PIT6004
Apr 21, 2023
118000 ELECTRICAL SYSTEM:SOFTWARE
This Preliminary information communicates a software anomaly that will display a message for a option that the vehicle is not equipped with and a software update will be released soon to address that issue.
PIT6003
Apr 19, 2023
130000 VISIBILITY
This Preliminary information communicates how to properly remove the outside mirror to add the GM Accessory Outside Rearview Mirror Projection Lights without breaking the mirror glass.
PIT5911B
Apr 14, 2023
020000 SUSPENSION
This Preliminary information communicates to the field that engineering contacts to assist in the diagnosis of Suspension concerns on the new 2022-2024 HUMMER EV.
PIT5872C
Apr 14, 2023
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This Preliminary information communicates to the field a norml charteristic of the vehicle and advises the field not to replace any parts for this concern.
PIT5905A
Apr 14, 2023
060000 ENGINE AND ENGINE COOLING
This Preliminary information communicates ordering process for front drive unit (S8L) and rear drive unit (P79) restriction for the 2022 MY GMC HUMMER EV and HUMMER EV SUV.
N222378440
Apr 12, 2023
162900 STRUCTURE:BODY:ROOF AND PILLARS
Service Update. On certain vehicles, water may leak at the center roof lift off panel insert or center roof lift off rear panel weatherstrip. Dealers are to replace the center roof lift off panel assembly and the center roof lift off rear
PIT5858B
Apr 11, 2023
350000 EQUIPMENT
This Preliminary information communicates that GMC HUMMER EV SUV Specific parts are being placed on a TAC Restriction
23-NA-056
Mar 31, 2023
160000 STRUCTURE
This technical bulletin provides a procedure to correct the condition of Wind Whistle Noise at Highway Speeds.
23-NA-016
Mar 27, 2023
350000 EQUIPMENT
This informational bulletin provides information on available Low Gloss Matte Paint Finishes.
PIT5872B
Mar 23, 2023
350000 EQUIPMENT
This Preliminary information communicates to the field a norml charteristic of the vehicle and advises the field not to replace any parts for this concern.
PIT5925A
Mar 23, 2023
353000 EQUIPMENT:ELECTRICAL
This Preliminary information communicates to the field that water hitting the cooling fans can set a false DTC: P0494 for the 2022-2023 HUMMER EV.
23-NA-050
Mar 22, 2023
110000 ELECTRICAL SYSTEM
This technical bulletin provides repair information to correct a customer concern of Radio Software Version Z167 a?? Multiple Updates for IOK.
PIE0736A
Mar 17, 2023
110000 ELECTRICAL SYSTEM
This engineering information (EI) closure ends the need for further information from technicians in regards to the power tonneau cover being inoperable.