Service bulletins for the 2018 Chevrolet Sonic
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.
821 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 100729001C | 2018-05-21. Service bulletin. POWER TRAIN. This informational bulletin provides information for the 6-Speed manual transaxle (RPOs MF3, MR5, MR6, MZ0, MZ4, MZU) current service strategy for transmissions requiring internal repairs (ie: synchronizer, gear or bearing replacement) is to replace the unit as an assembly. |
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| 080730035C | 2018-05-21. Service bulletin. POWER TRAIN. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid. |
| 18NA099 | 2018-05-21. Service bulletin. EQUIPMENT. This informational bulletin provides information for use on a Product Assistance Claim (PAC), which is formally known as a Product Allegation Resolution (PAR) claim. |
| PIT5411L | 2018-05-21. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Preliminary Information communication advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, and displays are placed on restriction through the General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance. |
| 17NA330 | 2018-05-21. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This informational bulletin provides information for the customer to pair their phone in order for the push to talk button on the steering wheel control to work. |
| 17NA238 | 2018-05-21. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Technical bulletin provides a correction for Wi-Fi Hotspots or Data Sharing Feature Not Working once Turned on. |
| PIE0447A | 2018-05-21. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This engineering information bulletin is requesting information from the field on vehicles that have the condition of Infotainment System Freezing and or Touch Screen Not Responding. |
| PI0666A | 2018-05-21. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information for the customer about the no sound coming out of the rear speakers. |
| 110849001W | 2018-05-21. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT; 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. |
| 110089002C | 2018-05-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin was created to inform that any accessories that are installed from the GM factory will be covered under the standard vehicle warranty and dealer installed accessories will be covered for a full year (12 months). |
| 060089031E | 2018-05-21. Service bulletin. ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION. This informational bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification. |
| 030089006P | 2018-05-21. 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. |
| 010310003Q | 2018-05-21. 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 (in Canada, the 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. |
| 000089027J | 2018-05-21. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information to dealership personnel on properly eliminating unwanted odors in vehicles. |
| 17NA215 | 2018-05-21. Service bulletin. ELECTRICAL SYSTEM. This technical bulletin provides a procedure to properly reprogram an onstar module to correct a condition of Red LED, No WiFi Operation, and/or Limited OnStar® Module Functionality After OnStar Module Replacement for Another Condition. |
| 17NA184 | 2018-05-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; EQUIPMENT. This informational bulletin provides information for dealers and technicians about the 1.4L turbocharged engine use two different suppliers for the oil filter housing which results in two different filters being used. |
| PIE0449 | 2018-05-21. Service bulletin. ENGINE. This engineering informational bulletin is requesting information from the field on vehicles that have the condition of Oil Leak and/or Oil Burning Smell. |
| PIE0447 | 2018-05-21. Service bulletin. ELECTRICAL SYSTEM. This engineering information bulletin is requesting information from the field on vehicles that have the condition of Infotainment System Freezing and or Touch Screen Not Responding. |
| PI0725B | 2018-05-21. Service bulletin. ENGINE. This PI provides information to the technician that this is a normal condition and advises not to replace the engine for this reason. |
| 110089005L | 2018-05-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides information on Dealer Empowerment Labor Operations and Customer Enthusiasm. |
| 090604015C | 2018-05-21. Service bulletin. ENGINE. This informational bulletin provides a revision for 09-06-04-015B (Vehicles Sitting Outside on Dealer Lots for Extended Periods with Hard Start/No Start Condition) to add the 2015-2018 model years. |
| 030603004W | 2018-05-21. 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. |
| 18NA057 | 2018-05-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin explains to the technician not to replace parts if the codes listed have been set. |
| 18NA048 | 2018-05-21. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This technical bulletin provides a procedure to replace the radio for vehicles with the condition of Radio Turns on Unwanted or Audio Mutes with Home or Left Track Skip Button Touch due to metallic particles may have fallen into the radio during assembly. |
| 18NA033 | 2018-05-21. Service bulletin. EQUIPMENT; ENGINE. This bulletin provides information for the low oil pressure light on at a idle in which may be caused by oil pressure being bled off due to debris in the oil drain check valve and/or a smashed oil filter. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.