Service bulletins for the 2008 GMC Sierra
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
1655 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 19NA044 | 2019-04-22. Service bulletin. ENGINE. This informational bulletin provides information on a normal engine operating condition for faster emission warm up time. |
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| PIT5236K | 2019-04-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D stored in Telematics Communication Interface Control Module. Technician will use Global Diagnostic System 2 to review the Firmware Over-the-Air version. If the Firmware Over-the-Air version on the scan tool equals 6708 the technician will need to contact General Motors Technical Assistance Center for further assistance. If the Firmware Over-the-Air version on the scan tool is lower than 6708 Dealer can order the part thought the Instrument Sales and Service website process. |
| PIT4745D | 2019-04-08. Service bulletin. STRUCTURE:FRAME AND MEMBERS; STRUCTURE:BODY; WHEELS. This Preliminary Information communication provides information to the technician about vehicles that have raised dents or ripple appearance in the side outer panel of the cargo box around the perimeter of the wheel house opening. Technician should first access the rear of the inner wheelhouse area through the tail lamp cavity and the front of the wheelhouse from under the vehicle, and coat the inner hem of the wheel house to side outer panel with 3M Rust Fighter I. After allowing the 3M Rust Fighter I to dry then apply several coats of Nox Rust X-121B undercoating. |
| PIT5074K | 2019-04-08. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking tension or probing the .64 series terminals. The test probe terminal has been released in the terminal repair kit (J-38125-620H) located in Lear Tray 7 part number 963716-2. There are 5 terminated leads in a package part number is 13505346, which can be ordered through your normal General Motors Customer Care and Aftersales parts channel. |
| PIP4723C | 2019-04-08. Service bulletin. EQUIPMENT; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS; FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update. |
| PIT5403D | 2019-04-08. Service bulletin. SUSPENSION; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. This Preliminary Information communication provides information to the technician with the steps to diagnosis and repair vehicles with various handling, vehicle dynamics concerns, noises from the suspension or underbody, or issues related to damaged suspension components. Before any in-depth diagnostics are performed, be aware that various issues could occur if the vehicle has been modified and inform the customer the conditions noted may not be covered under warranty. Technician will inspect for installed aftermarket suspension components. Also inspect for improperly adjusted torsion bars. |
| PIT4322H | 2019-04-08. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). This Preliminary Information communication provides information to the technician about vehicles that have an unwanted Stability Activation and/or a Service Stability message on the Driver Information Center. Technician may find a Diagnostic Trouble Code C0710. Technician should inspect for vehicles modifications before any in-depth diagnostics are performed. |
| PIT5389E | 2019-04-08. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Technician will need to call General Motors Technical Assistance Center with the scan tool data from the OnStar system. |
| PIT3099Q | 2019-04-08. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary Information communication provides information to the technician about installing General Motors Accessory parts/kits. Technicians should refer to Service Information for information regarding most accessories. Technicians may also contact Partech and/or the Techline Customer Support Center for additional support. |
| PIT3098G | 2019-04-08. Service bulletin. SUSPENSION. This Preliminary Information communication provides information to the technician about vehicles that have a lean to the left or right. Technician will need to measure fender wheel-opening heights, front and rear, to quantify vehicle lean. Fender wheel-opening heights are related to, but distinct from, trim height. The front wheel-opening height is known as P height, and the rear wheel-opening height is known as R height. Adjust and heights that are out of specification. After all adjustments are done, perform a front-end alignment and check headlight aim. |
| PIP3119P | 2019-04-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; ENGINE. This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on at low mileage. Technician may find Diagnostic Trouble Codes P0420 and or P0430 stored. Technician should be advised that the catalytic converter efficiency Diagnostic Trouble Codes P0420 and P0430 are disabled for the first hour of engine run time to allow break-in of the catalytic converter. Technician will need to use a Tech2 to check the verify engine run time on the Engine Hour Meter in the Instrument Panel Cluster Data Display/Data 1 List in the scan tool match. If the engine run time is less than one hour, the battery may have been disconnected, or another vehicle power loss event may have occurred, during vehicle manufacturing. Technician will need to clear the Diagnostic Trouble Codes and perform a drive cycle. If the catalytic converter was replaced and the Diagnostic Trouble Codes set it may be a result of the engine run time restrictions no longer being in place since the vehicle is no longer new. Technician will need to clear the Diagnostic Trouble Codes and perform a drive cycle. |
| 18NA094 | 2019-03-25. Service bulletin. AIR BAGS. This informational bulletin provides information on Takata Air Bag Completion Rate Improvement Program - Applicable to GM Recalls 14491, 14735, 15040, 15041, 15043, 15044, 15045, 15046, 15406, 15438, 15442, 15815, 15816, 15817, 15818, 15826, 17009, 17476, 17477, 28810 and 28811. |
| 120089002C | 2019-03-25. Service bulletin. EQUIPMENT. This informational bulletin provides the dealer with information on what to do when requesting a new key code for the customer. |
| 110849001Y | 2019-03-25. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. 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. |
| 070845001H | 2019-03-25. Service bulletin. ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL; SERVICE BRAKES. This informational bulletin provides information for aftermarket trailer brake controller added to their vehicle, OR in lieu of the factory integrated trailer brake controller (ITBC) (RPO JL1). |
| 17NA346 | 2019-03-25. Service bulletin. EQUIPMENT. This informational bulletin provides a listing of the parts availability for coax repair procedures and what is needed to complete some repairs. |
| 17NA170 | 2019-03-25. Service bulletin. WHEELS. This informational bulletin explains the wheel Road Force balancers and what they can do for customer concerns. |
| 070842006N | 2019-03-25. Service bulletin. EXTERIOR LIGHTING. This informational 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. |
| 060850009J | 2019-03-25. Service bulletin. SEATS; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information for information on passenger presence sensing system (PPS or PSS) concerns with custom upholstery, accessory seat heaters or other comfort enhancing devices. |
| 060847001N | 2019-03-25. Service bulletin. ELECTRICAL SYSTEM. This bulletin explains the labor operation numbers used for submitting warranty claims for module reprogramming and not when replacing a module. |
| 060089026O | 2019-03-25. Service bulletin. EQUIPMENT. This warranty bulletin provides labor operation numbers for customer concerns Not duplicated (CCND). |
| 010842001L | 2019-03-25. Service bulletin. EXTERIOR LIGHTING. This informational bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Replacement Guidelines. |
| 000310003X | 2019-03-25. Service bulletin. TIRES. This warranty administration bulletin provides information on The tires supplied with a new vehicle are covered by General Motors against defects in material or workmanship under the Bumper-to-Bumper New Vehicle Limited Warranty. |
| 17NA073 | 2019-03-18. Service bulletin. EQUIPMENT. This warranty administration bulletin provides information regarding the field action courtesy transportation policy. |
| 16NA338 | 2019-03-18. Service bulletin. POWER TRAIN. This Bulletin provides guidelines for Dealers Not Required and 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. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.