WenmarOpen by Wenmar Pro

Service bulletins for the 2018 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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
17-NA-2532018-06-11. Service bulletin. ENGINE. This informational bulletin provides information for specification with the engine oil for the Duramax 6.6L engine.
17-NA-2222018-06-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. This technical bulletin provides a procedure to replace the turbocharger for vehicles with a condition of Turbocharger Whine Noise due to the blades on the turbo being bent.
17-NA-2192018-06-11. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This technical bulletin provides to the technician a possible issue with the NOx sensor wiring harness and what to do if corrosion is found.
17-NA-2132018-06-11. Service bulletin. EQUIPMENT:OTHER:LABELS. This informational bulletin provides information for the service parts identification (SPID) label replacement.
17-NA-1942018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin advises the technician to test the induction system for leaks for any of the codes listed.
17-NA-1142018-06-11. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. This technical bulletin provides a procedure to Tighten the Charge Air Cooler Duct Clamp to correct a condition of an oil leak originating from either the inlet or outlet duct of the turbocharger due to the charge air cooler pipe clamp not being tightened properly.
PI1149A2018-06-11. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This preliminary information bulletin provides a procedure on how to check for the customer concern of a blank radio with/without audio, by checking the the wiring harness, ECU and reprograming the HMI software update, if the wiring or ECU are not the cause.
16-NA-3802018-06-11. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This Technical bulletin provides a procedure on how to perform a quick test to check if the DPF is the cause of excessive soot from the tailpipe.
13-08-116-001C2018-06-11. Service bulletin. EQUIPMENT:ELECTRICAL. The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
08-08-44-029H2018-06-11. Service bulletin. EQUIPMENT. This warranty administration bulletin provide policy information on warranty and policy exchange program for electronic products for U.S. and Canada dealers only.
04-00-89-015Q2018-06-11. Service bulletin. EQUIPMENT. This warranty administration bulletin provide policy information on required operating procedures.
03-08-46-004T2018-06-11. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information on OnStar® VCIM is currently restricted parts. By working closely with our dealers and technicians, through the part restriction process, the General Motors team will gain a better understanding of any field concerns that may develop.
00-06-01-026J2018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin provides information on Intake Manifold Inspection/Replacement After Severe Internal Engine Damage.
PI0653E2018-06-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. This preliminary informational bulletin provides information on Damaged, Disassembled or Improperly Packaged Turbochargers Returned to Warranty Part Center.
150603002K2018-06-04. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT. This informational bulletin provides information on approved warranty part numbers for original equipment batteries
150603001D2018-06-04. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This informational bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
100864002D2018-06-04. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR. This warranty bulletin explains how to determine if an outside mirrior was damaged by the customer and what is considered warranty and non-warranty.
060601010D2018-06-04. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. This informational bulletin explains how the catalytic converters may need an inspection, cleaning or replacement if debris have entered the exhaust system.
060089026N2018-06-04. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY:SUN/MOON ROOF ASSEMBLY; STRUCTURE:BODY:DOOR; POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE); VISIBILITY:WINDSHIELD; ELECTRONIC STABILITY CONTROL (ESC). This warranty bulletin provides labor operation numbers for customer concerns that cant be duplicated.
050851001I2018-06-04. Service bulletin. EQUIPMENT. This information bulletin provides a procedure on how to remove the paint stain that may present itself under the shipping film.
010310003P2018-06-04. Service bulletin. TIRES. This bulletin contains information for the new tires that the vehicle is equipped with and that they are covered by General Motors against defects in material or workmanship under the New Vehicle Warranty (Base Warranty Coverage). For vehicles within this warranty period, defective tires will be replaced on a pro rata adjustment basis according to the published distance-based schedule.
18NA0272018-06-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information retaining to the fact that Service Manuals will now be available on USB.
PIE04452018-06-04. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. This engineering informational bulletin is requesting information from the field on vehicles that have the condition of Drivers Door Window Glass Out of Channel and/or Inoperative.
16NA2392018-06-04. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT. This Bulletin provides a procedure to activate/enable 4G LTE Wi-Fi Hotspot on New vehicle.
16NA0752018-06-04. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; VISIBILITY; VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR. This Bulletin provides procedures to correct a condition of Power Foldaway Mirror Glass Shake, Flutter at Normal Driving Speeds

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