WE JUST HAD TO SPEND $1,000 TO HAVE THE RADIATOR REPLACED ON OUR 2018 CHEVROLET TAHOE BECAUSE IT WAS LEAKING WHICH ONLY HAS 32,050 MILES ON IT. THE TAHOE HAD A 3 YEAR 36,000 MILE BUMPER TO BUMPER WARRANTY, BUT WE WERE TWO (2) DAYS PAST THE 3 YEAR MARK SO THEY WOULD NOT COVER IT. THE TAHOE ALSO HAS A 5 YEAR 60,000 POWERTRAIN WARRANTY, BUT THE DEALERSHIP SAID THAT THE RADIATOR IS NOT CONSIDERED TO…
2018 chevrolet Tahoe powertrain problems
moderate 15 complaints filed with NHTSA · avg repair $2,500
Complaints
15
Recalls
0
Crashes
0
Avg fix
$2,500
What owners are reporting 2 most recent
A lifter collapsed, which in turn damaged the lobes of a piston, which then damaged the camshaft...generating a repair bill of $7,100 per the dealer. The vehicle only has 69,200 miles on it. When the lifter failed, the car shuddered at stops, lost some power and made a noticeable clanking noise. When pulling out from stops, or into traffic, the car hesitated somewhat before accelerating. This …
Common questions
How serious is the powertrain problem on the 2018 chevrolet Tahoe?
It's a documented issue but not catastrophic. 15 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain 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 $2,500 for powertrain 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 powertrain?
No active recalls currently cover powertrain 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.
Some links on this page are affiliate links.