WenmarOpen by Wenmar Pro

Service bulletins for the 2008 GMC Savana

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.

1110 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
01-00-89-010J2018-05-21. Service bulletin. EQUIPMENT. This informational bulletin provides a revision for 01-00-89-010I to add the 2013 model year.
03-08-46-004M2018-05-21. Service bulletin. COMMUNICATION; EQUIPMENT; ELECTRICAL SYSTEM. This informational bulletin provides information on part restriction and ordering process information for onstar vehicle communication interface modules.
11-06-04-007C2018-05-21. Service bulletin. ENGINE AND ENGINE COOLING. This technical bulletin provides a procedure for replacing the throttle position sensor cover for concerns regarding a indicator lamp illuminated reduced power message displayed and DTC P2135 set.
10-08-64-002B2018-05-21. Service bulletin. EQUIPMENT. This warranty administration bulletin provides information on what should be considerd warranty damage or damage that was at fault of the cutomer and how to properly claim them on the warranty paperwork
PI0695A2018-05-21. Service bulletin. WHEELS; TIRES. This informational bulletin provides information on how to properly mount and balance wheels and tires on heavy duty truck models only
030089006P2018-05-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides the dealership with how to prep a vehicle for delivery to the customer to aid in higher CSi scores.
090604026N2018-05-21. Service bulletin. ENGINE; ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2 9U.S. and Canada
030603004W2018-05-21. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements.
15-NA-0692018-05-21. Service bulletin. EQUIPMENT. This informational bulletin provides information for technicians on the reuse of fasteners and the proper reading of torque specifications.
00-03-10-006L2018-05-21. Service bulletin. TIRES; TIRES:TREAD/BELT; TIRES:BEAD; WHEELS:RIM. This informational bulletin provides additional information to the technician on how to check for Tire Radial Force Variations and the difference between balancing a flange and flangeless rim.
15-08-44-001F2018-05-21. Service bulletin. EQUIPMENT:ELECTRICAL. This informational bulletin provides information on a GM of Canada OnStar cellular communication upgrade.
15-08-44-001G2018-05-21. Service bulletin. EQUIPMENT:ELECTRICAL. This informational bulletin provides information on a GM of Canada OnStar cellular communication upgrade.
10-00-89-005E2018-05-21. Service bulletin. ELECTRICAL SYSTEM:WIRING. This warranty administration bulletin adds the 2016 model year to a communication which provides dealership personnel revised wiring repair labor operations and required additional information.
PIT4376J2018-05-21. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:CONTROL MODULE; EQUIPMENT:ELECTRICAL:ANTI-THEFT DEVICES. This Preliminary Information communication advises the technician about key and theft information for Fleet Vehicles equipped with RPO 6E2 or 6E8 and converting to fleet mode. Technician will need to ensure fleet vehicles with RPO 6E2 or 6E8 should be checked to verify that the Theft Deterrent Module is in fleet mode prior to attempting to add keys.
05-08-46-009D2018-05-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin adds the 2014 and 2015 model years to information of a language change for OnStar System (U.S. and Canada only).
12-07-30-001E2018-05-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information on the Product Quality Center (PQC) assembly replacement process for Service Agents not required to contact PQC prior to assembly replacement.
00-05-22-002O2018-05-07. Service bulletin. SERVICE BRAKES. This informational bulletin provides technicians with a brake lathe calibration procedure.
PI14402018-05-07. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This preliminary informational bulletin provides technicians with diagnostic tips for a customer concern of odor emanating from HVAC system.
09-00-89-016D2018-05-07. Service bulletin. EQUIPMENT. This warranty administration bulletin provides retail and wholesale service personnel with the policies and the warranty claims submission procedures that support Labor Operation 0600014 ? Suspected Tampering or Vehicle Modifications.
12-06-01-008B2018-05-07. Service bulletin. EQUIPMENT. This informational bulletin provides dealership personnel information on unscheduled supplemental services (including flushing services and additives) and proper use of GM simplified maintenance schedules (Canada only).
15-00-90-0012018-05-07. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides technicians with diagnostic tips for preventing oil leaks after changing oil and filter.
08-08-45-004D2018-05-07. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information for installing a diode to solenoid/relay to suppress voltage spikes in conjuction with installation of electrical aftermarket accessories-battery, ignition and ground feeds-(do not splice into wiring harness).
02-07-30-029X2018-05-07. Service bulletin. EQUIPMENT. This informational bulletin provides information on the PQC assembly replacement process - for dealers required to contact PQC prior to replacing an assembly (U.S. and Canada only).
15-08-73-0012018-05-07. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information on communication with OnStar® module after Canadian cellular upgrade.
PIT5099A2018-05-07. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.