Service bulletins for the 2018 Chevrolet Impala
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.
882 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
Only bulletins with component: Equipment and accessories are shown. Show all
| 18NA072 | 2020-04-27. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE; FUEL SYSTEM, GASOLINE. This technical bulletin provides a procedure to inspect the fuel system and replace the high pressure fuel pump if faulty for a Reduced Engine Power, MIL On, DTC P228C condition. |
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| 150089005C | 2020-04-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT ADAPTIVE/MOBILITY. This Warranty Administration bulletin provides information on Essential Tools that include Consumable Parts (U.S. Only). |
| 050307009J | 2020-04-06. Service bulletin. EQUIPMENT; WHEELS. This informational bulletin provides information on Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles. |
| 040601029J | 2020-04-06. Service bulletin. ENGINE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin explains Unscheduled Supplemental Services (including Flushing Services and Additives) and the Proper use of GM Simplified Maintenance Schedules. |
| 040089015U | 2020-04-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information on Warranty Administration ? Required Operating Procedures - 8 Points (U.S. Only). |
| 000310003Y | 2020-04-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; 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. |
| 19NA260 | 2020-04-06. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This technical bulletin provides a procedure to correct a condition of A/C blows warm air. |
| 19NA104 | 2020-04-06. Service bulletin. EQUIPMENT; STRUCTURE:BODY; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area. |
| 19NA083 | 2020-04-06. Service bulletin. SUSPENSION; EQUIPMENT. This technical bulletin provides a procedure to replace both front strut mounts due to a gap between the bearing lower housing and top mount body. |
| 20NA029 | 2020-03-30. Service bulletin. EQUIPMENT; ENGINE. This technical bulletin provides a Service Procedure to correct a Condition of Ticking, Tap or Rattle Noise from Engine. |
| 18NA073 | 2020-03-30. Service bulletin. EQUIPMENT; ENGINE. This Bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement. |
| 16NA119 | 2020-03-30. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provide policy information to cover GMs policy on performing GM covered vehicle services and maintenance on vehicles originating/sold in Canada. |
| PIT3099T | 2020-03-09. Service bulletin. EQUIPMENT. 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. |
| 110089002D | 2020-03-09. Service bulletin. EQUIPMENT. This informational bulletin provides information on GM Accessories ? Dealer-Installed, Repaired or Replaced During Warranty Coverage Period. |
| 050307009I | 2020-03-09. Service bulletin. WHEELS; EQUIPMENT. This informational bulletin provides retail, wholesale and fleet personnel with General Motors recommendations for customer concerns related to wheel alignment. |
| 20NA016 | 2020-03-09. Service bulletin. EQUIPMENT. This Warranty Administration bulletin provides information on customer vehicles concern results in a manufacturer repurchase from the customer, GM depends on the dealership to host and administer the repurchase closing and intake of the returning vehicle. |
| 18NA306 | 2020-03-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA) (US dealers only). |
| 16NA383 | 2020-03-02. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM. This informational bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up. |
| PI0592F | 2020-01-21. Service bulletin. EQUIPMENT. This preliminary information bulletin provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961). |
| PIC6380 | 2020-01-21. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This Preliminary information communicates that a vehicle may come to the dealer with AC blowing warm. The dealer technician is directed to perform leak testing per SI and to inspect in specific areas shown in the PI for the source of the leak. The technician is then instructed to replace the necessary component. |
| 100089009D | 2019-12-16. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information on key code security rules and information on GM keycode look-up applications. |
| 080310006G | 2019-12-16. Service bulletin. EQUIPMENT; TIRES; EQUIPMENT ADAPTIVE/MOBILITY; WHEELS. This technical bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that have the condition of Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel Bead Seat Corrosion. |
| 080089014F | 2019-12-16. Service bulletin. EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information for dealers/technicians on Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S. Technical Assistance (TAC). |
| 010842001M | 2019-12-16. Service bulletin. EQUIPMENT; EXTERIOR LIGHTING; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Replacement Guidelines. |
| 19NA256 | 2019-12-16. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE. This technical bulletin provides a procedure to perform inspections to determine if the engine needs to be replaced as opposed to just internal parts for knocking, rattle, squeak and/or squeal type noises from engine. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.