IF THE CAR HAS BEEN OPERATING FOR LONG PERIOD OF TIME AN HOUR OR MORE WHEN THE AUTO STOP KICKS ON THE WHOLE CAR TURNS OFF. USUALLY AT A STOP SIGN OR STOP LIGHT. IN THE MIDDLE OF TRAFFIC. I HAVE TO LET IT SIT OFF FOR A COUPLE MINUTES AND RESTART AND JERKS HARD INTO GEAR. . WAS TOLD IT'S THE BATTERY FUSE BLOCK AND ISN'T COVERED BY WARRANTY.
2018 chevrolet Impala electrical problems
moderate 8 complaints filed with NHTSA · avg repair $850
Complaints
8
Recalls
0
Crashes
0
Avg fix
$850
What owners are reporting 5 most recent
TIRES-TIRES KEEP LOSING AIR PRESSURE, THEY APPEARED NEW BUT WHEN TESTED PROBLEMS WAS FOUND, THEY WERE WORE TO THE OUTSIDE AS IF ALIMENT WAS NEEDED, NEW TIRES WAS PURCHASED ELECTRICAL/BATTERY-THERE IS A FREQUENT SHUT DOWN OF ELECTRICAL SYSTEM, WHILE DRIVING THE ENGINE LIGHT COME ON, FROM THE DRIVER INFORMATION CENTER (DIC) THE WAS 14.7, THE BATTERY WAS CHECKED TWICE WITHIN A PERIOD OF TWO DAYS…
I WENT TO THE STORE AND CAME OUT TO LEAVE. I ATTEMPTED TO START MY CAR AND THE RADIO CAME ON, LIGHTS IN THE CAR FLASHED A COUPLE OF TIMES AND THEN I TRIED AGAIN. THEN IT STARTED MAKING A CLICKING SOUND.
SIDE DETECTION DEVICE NOT WORKING. CAR WAS PURCHASED IN JUNE AT A REPUTABLE DEALER. THE DEALERSHIP IS NOT SAYING THERE IS A PROBLEM, BUT THE SENSOR IS CORRODED. THERE ARE A NUMBER OF OTHER CASES WITH THE SAME PROBLEM.
Tire pressure sensor system receiver (part of keyless entry system) will not collect info from individual tire pressure sensors in tires. Failure of this safety system would not provide and advance warning of low tire pressure.
Common questions
How serious is the electrical problem on the 2018 chevrolet Impala?
It's a documented issue but not catastrophic. 8 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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