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2018 Chevrolet Impala

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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When problems were reported

Mileage at the reported incident

31 reports with mileage · 28 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Electrical System. Review the 11 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 11 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 7 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

6 crash reports0 fire reports2 injury reports

Unknown Or Other complaints

16 reports
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Mileage unknown · Apr 15, 2024
Unknown Or Other

answers to Questions from above 1. EVAPORATOR KIT 84409864 2. Not a safety issue to my knowledge. 3. Yes, issue was diagnosed and repaired at dealership. (Receipt for work - including part numbers will be attached with supporting documents) 4. No, no one outside of the dealership. 5. No warning lights but there was the smell o…

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answers to Questions from above 1. EVAPORATOR KIT 84409864 2. Not a safety issue to my knowledge. 3. Yes, issue was diagnosed and repaired at dealership. (Receipt for work - including part numbers will be attached with supporting documents) 4. No, no one outside of the dealership. 5. No warning lights but there was the smell of coolant in the cab of the car. Due to an issue with my 2018 Chevy Impala - V6 engine, I had to have the AC evaporator core replaced due to a leak (faulty part). Searching the NHTSA website, I found the below special coverage which seems to match my vehicle perfectly including the issue for which the special coverage was issued. I filed a claim with GM but continue to be told that my vehicle is not covered by this but no reason as to why it isn't covered. *Special Coverage N182186881 - Evaporator Core Icing, Leak *Quantity Part Name Part No. *1 EVAPORATOR KIT 84409864 This is concerning as a consumer as the issue and vehicle description matches the special coverage exactly, yet GM is stating that my vehicle is not covered. This issue clearly extends beyond the number of vehicles affected that was reported. Also, being replaced with the same part (part num) does give me pause that this will be an issue again in the future, costing consumers even more money and time.

NHTSA ODI #11582997

Mileage unknown · Oct 30, 2023
Unknown Or Other

The Evaporator core is leaking and a/c system is not operative. There is an outstanding report from your office, DCS4922, that outlines this condition perfectly. This report talks about a Special Coverage Adjustment #N182186881 Evaporator Core Icing, Leak, and an estimated number of vehicles involved. Since it is an estimated nu…

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The Evaporator core is leaking and a/c system is not operative. There is an outstanding report from your office, DCS4922, that outlines this condition perfectly. This report talks about a Special Coverage Adjustment #N182186881 Evaporator Core Icing, Leak, and an estimated number of vehicles involved. Since it is an estimated number of vehicles it means that GM doesn't know exactly how many vehicles are involved. It is my position that my vehicle should be included in the Service Adjustment. General Motors will not consider repair based on my VIN. This Special coverage addresses the exact issue I am experiencing. I have visited a Chevy Impala public forum and found there are others experiencing the same issue. Any help will be appreciated.

NHTSA ODI #11552712

Mileage unknown · Mar 15, 2022
Unknown Or Other

Ii purchased the car new. at 3 years and 3 months the evaporator core failed dumping the Freon. I realize you stated the A/C is not a safety item but I read many complaint on this vehicle on the internet. I am a retired mechanic and the failure rate for evaporators is very low. I changed out maybe 10 in 30 years working on v…

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Ii purchased the car new. at 3 years and 3 months the evaporator core failed dumping the Freon. I realize you stated the A/C is not a safety item but I read many complaint on this vehicle on the internet. I am a retired mechanic and the failure rate for evaporators is very low. I changed out maybe 10 in 30 years working on vehicles. This needs to be looked into and addressed by GM and corrected. Any help would be greatly appreciated.

NHTSA ODI #11456776

25,000 miles · May 13, 2021
Unknown Or Other

REFRIGERANT LEAKS. 1234YF

NHTSA ODI #11416433

Mileage unknown · May 12, 2021
Power TrainUnknown Or Other

THE EVAP CORE STARTED LEAKING A MONTH AGO HAD THE CAR FOR 2 YEARS AND AS I READ ONLINE ITS A COMMON ISSUE AND CHEVY DOESNT WANT TO FIX IT. SOMETIMES THE TRANSMISSION SHIFTS HARD BUT DOESNT HAPPEN OFTEN

NHTSA ODI #11416236

Mileage unknown · Mar 29, 2021
Service BrakesUnknown Or Other

GETTING A SECOND LOOK AT AIR CONDITIONING. I WAS TOLD THE COMPRESSOR COULD BE LEAKING AS THERE HAS BEEN NO FREON FOR OVER A MONTH OR TWO. THE FREON IS 120/POUND AND COULD COST 1000, HE MENTIONED FOR FREON ALONE. THIS IS A 2018, PURCHASED LAST YEAR AND I'M DEALING WITH A COMPRESSOR ISSUE AS WELL AS VERY EXPENSIVE FREON?

NHTSA ODI #11405407

62,125 miles · Jul 21, 2020
Air BagsSeatsUnknown Or Other

ON 16TH JULY 2020 WHILE DRIVING BELL SOUNDS WENT OFF IN MY CAR, ON DASH AIRBAG WARNING CAME ON AND GOT AN ONSTAR ALERT THAT AIRBAG MALFUNCTION. ONSTAR SAID TO GET IT TO DEALERSHIP ASAP. YESTERDAY 20TH JULY DEALERSHIP TOLD ME THAT FRONT PASSENGER SEAT AIRBAG MODULE, FRONT PASSENGER AIRBAG PLATE IN SEAT AND SOMETHING ELSE AIRBAG …

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ON 16TH JULY 2020 WHILE DRIVING BELL SOUNDS WENT OFF IN MY CAR, ON DASH AIRBAG WARNING CAME ON AND GOT AN ONSTAR ALERT THAT AIRBAG MALFUNCTION. ONSTAR SAID TO GET IT TO DEALERSHIP ASAP. YESTERDAY 20TH JULY DEALERSHIP TOLD ME THAT FRONT PASSENGER SEAT AIRBAG MODULE, FRONT PASSENGER AIRBAG PLATE IN SEAT AND SOMETHING ELSE AIRBAG IS WRONG. TOLD ME NOT COVERED UNDER WARRANTY IN WHICH SINCE IT IS A 2018 I COULDN'T BELIEVE IT. THEY SAID BECAUSE HAVE 62,000 MILES IS WHY. I SAID THIS IS A SAFETY ISSUE THEY ACKNOWLEDGED THAT BUT SAID I WOULD NEED TO HAVE IT REPAIRED WHICH WOULD COST $1300 WITHOUT TAXES. I CALLED GENERAL MOTORS AND HAVE A CASE NUMBER. HOWEVER, NOT GM NOR THE DEALERSHIP NESMITH CHEVROLET, BUICK, GMC SEEM TO FEEL THIS SHOULD BE A RECALL OR A SAFETY ISSUE THAT THEY SHOULD BE LIABLE FOR!

NHTSA ODI #11340587

62,100 miles · Jul 20, 2020
Air BagsSeatsUnknown Or Other

FREIGHTED: AIRBAG WARNING ON DASH CAME ON, BELLS STARTED MAKING NOSE IN CAR AND GOT ONSTAR ALERT THAT AIRBAG MALFUNCTION TO GET IT TO DEALERSHIP ASAP. EVEN IF PUSH DISMISS BUTTON COMES BACK ON. CALLED DEALERSHIP AND GOT AN APPOINTMENT: TODAY DEALERSHIP SAYS IT IS ISSUE WITH AIRBAG SENSORS IN PASSENGER SEAT AND PASSENGER SIDE AIR…

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FREIGHTED: AIRBAG WARNING ON DASH CAME ON, BELLS STARTED MAKING NOSE IN CAR AND GOT ONSTAR ALERT THAT AIRBAG MALFUNCTION TO GET IT TO DEALERSHIP ASAP. EVEN IF PUSH DISMISS BUTTON COMES BACK ON. CALLED DEALERSHIP AND GOT AN APPOINTMENT: TODAY DEALERSHIP SAYS IT IS ISSUE WITH AIRBAG SENSORS IN PASSENGER SEAT AND PASSENGER SIDE AIRBAG. TELLS US IT IS NOT COVERED UNDER WARRANTY AND NO RECALLS FOR THIS. WE HAVE CALLED GM TODAY ALSO AND HAVE A CASE NUMBER

NHTSA ODI #11340332

Mileage unknown · May 14, 2020
EngineUnknown Or Other

MY VEHICLE HAS BEEN SERVICED SEVERAL TIMES SINCE I HAVE PURCHASED THE VEHICLE. THE CAR WILL COMPLETELY SHUT OFF WHEN ATTEMPTING TO TURN BACK ON AFTER THE AUTO STOP TURNS IT OFF THEN I HAVE TO PLACE THE PARK HIT THE START SWITCH AND RESTART THE VEHICLE. ALSO MY AC HAS STOPPED SEVERAL TIMES IN THE VEHICLE. THE AC COMPRESSOR WAS RE…

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MY VEHICLE HAS BEEN SERVICED SEVERAL TIMES SINCE I HAVE PURCHASED THE VEHICLE. THE CAR WILL COMPLETELY SHUT OFF WHEN ATTEMPTING TO TURN BACK ON AFTER THE AUTO STOP TURNS IT OFF THEN I HAVE TO PLACE THE PARK HIT THE START SWITCH AND RESTART THE VEHICLE. ALSO MY AC HAS STOPPED SEVERAL TIMES IN THE VEHICLE. THE AC COMPRESSOR WAS REPLACED IN 2019 AND HAD BEEN SERVICED TWICE BEFORE THAT HAPPENED BECAUSE IT BLOWS EXTREMELY LOW AND HAVE TO PUT IT ON HIGH JUST FOR THE AIR TO BLOW. AS OF TODAY THE AC HAS BEEN GOING IN AND OUT EVEN AFTER THE REPLACEMENT OF THE COMPRESSOR AND STILL NO ONE CAN TELL ME WHAT'S THE ISSUE! *TR

NHTSA ODI #11324490

45,365 miles · May 13, 2020
Unknown Or OtherVisibility/wiper

WHILE OPERATING VEHICLE ON PUBLIC ROADWAY WHILE UTILIZING THE AC FUNCTION, THE AC EVAPORATOR CATASTROPHICALLY FAILED UNDER THE DASH, STARTLING THE DRIVER & PASSENGER, AND EXPOSING THEM TO HIGH LEVELS OF 1234YF REFRIGERANT IN THE ENCLOSED CABIN. THE AC SYSTEM SUBSEQUENTLY WENT INTO LOW PRESSURE MODE, RENDERING ALL AC FUNCTIONS US…

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WHILE OPERATING VEHICLE ON PUBLIC ROADWAY WHILE UTILIZING THE AC FUNCTION, THE AC EVAPORATOR CATASTROPHICALLY FAILED UNDER THE DASH, STARTLING THE DRIVER & PASSENGER, AND EXPOSING THEM TO HIGH LEVELS OF 1234YF REFRIGERANT IN THE ENCLOSED CABIN. THE AC SYSTEM SUBSEQUENTLY WENT INTO LOW PRESSURE MODE, RENDERING ALL AC FUNCTIONS USELESS SUCH AS DEFROSTING THE WINDSHIELD WHICH HAS CREATED SAFETY ISSUES IN ADDITION TO THE INHALATION OF THE LEAKED REFRIGERANT. THIS STYLE OF FAILURE IS COVERED UNDER SPECIAL COVERAGE ADJUSTMENT - N182186881 EVAPORATOR CORE ICING, LEAK FOR CERTAIN 2016-2018 IMPALA VEHICLES. GM CUSTOMER SERVICE STATES THAT THIS VIN IS NOT COVERED UNDER THIS SPECIAL COVERAGE, EVEN THOUGH THIS IS A SIMILAR FAILURE ON A PART THAT SHOULD LAST THE LIFE OF THE VEHICLE. GM REFUSES TO COVER THIS FAILURE AND REQUESTED THAT THE CUSTOMER CONTACT THE NHTSA TO HELP RESOLVE THE MISSING VIN FROM THE SPECIAL COVERAGE. CUSTOMER IS CURRENTLY SADDLED WITH A $2300 REPAIR BILL FOR A LIFETIME PART THAT HAS FAILED IN 2.4 YEARS AND POSES AN ONGOING SAFETY ISSUE. *TR

NHTSA ODI #11324422

Official recalls

1

18V576000 · Service Brakes, Hydraulic:foundation Components:disc:caliper

Aug 30, 2018

General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Equinox, Impala, Cruze, Volt and Bolt EV vehicles, GMC Terrain vehicles, Buick Lacrosse and Regal vehicles, Cadillac XTS and XTS Professional vehicles and 2018 Chevrolet Malibu vehicles. The rear brake caliper pistons may have an insufficient coating causing gas pockets to form, potentially reducing rear brake performance.

Consequence & remedy

Consequence: A reduction of braking performance can increase the risk of a crash.

Remedy: GM will notify owners, and dealers will bleed the vehicle's brake system, free of charge. The recall began October 11, 2018. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 18279.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

0

No exact-year investigations in this snapshot.