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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.

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By component

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Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
N182186881 012019-06-24. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. N182186881 01 - Special Coverage Adjustment. On some vehicles, the evaporator core may become damaged as a result of repeated freeze/thaw cycles without proper drainage of the condensate from the core. A damaged evaporator core may leak refrigerant and result in a loss of air conditioning function. Dealers are to confirm the air conditioning system evaporator core is the source of the refrigerant leak, and replace the core if its sealing is compromised. The repairs will be made at no charge to the customer.
PIP5632A2019-06-10. Service bulletin. EQUIPMENT. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
PIC6249C2019-06-10. Service bulletin. EQUIPMENT. This Preliminary Information communication provides information to the technician about vehicles that have cold air blowing from the center console or cold air blowing from the wireless charging mat area. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
PIP5226C2019-06-10. Service bulletin. EQUIPMENT; ENGINE. This Preliminary Information communication provides information to the technician about finding needle bearings during an oil change. Technician will gain access to the roller rockers to inspect them. Only replace the roller rocker that is missing needle bearings. Be sure to clean the oil drains to retrieve the needle bearings. Each roller rocker has 66 bearings.
19NA0832019-05-28. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; SUSPENSION. 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.
1008110001H2019-05-20. Service bulletin. EQUIPMENT. This informational bulletin provides information on proper use of floor mats.
030729004L2019-05-20. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION; EQUIPMENT. This informational bulletin provides normal operating characteristics and diagnostic information on Manual transmissions.
150603002G2019-05-13. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT. This informational bulletin provides information on approved warranty part numbers for original equipment batteries
040601029I2019-05-13. Service bulletin. EQUIPMENT. This informational bulletin explains the importance of maintaining the vehicle.
000601012H2019-05-13. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. This informational bulletin advises the possible issues that may occur using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts.
PIE0495A2019-04-22. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This engineering information PI ends the need for information from the field on a oil leak from the oil pan.
PIE0494A2019-04-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:ENGINE. This engineering information PI ends the need for information from the field on a oil leak from the oil pan.
PIE0476A2019-04-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING. This engineering information PI ends the need for information from the field for areas to look for oil leak.
1008110001G2019-04-22. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information on proper use of floor mats.
110849001Z2019-04-22. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information on the Transport Mode On Message Being Displayed in the Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the Transport Mode message ON and OFF.
110089005N2019-04-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides information on Dealer Empowerment Labor Operations and Customer Enthusiasm.
100845001F2019-04-22. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin provides information for electrical ground repairs using new replacement fasteners with "conductive finish".
090089002Q2019-04-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before sold (prepping) to the customer.
070849020P2019-04-22. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information for the IPC odometer programming method quick reference guide.
060605001H2019-04-22. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This informational bulletin explains the normal characteristics of exhaust noise during active fuel management when in Three or Four Cylinder Mode.
060089029O2019-04-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides information on interior cleaning products and what is offered to clean the interiors of GM vehicles.
050604022P2019-04-22. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL. This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
040089053G2019-04-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information for the dealer technician to gather as much information to help aid Engineers by completely filling out requested reports.
030089006Q2019-04-22. 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.
18NA2662019-04-22. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM. This technical bulletin provides repair information to correct a customer concern of an intermittent blank or flickering driver information center (DIC).

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