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Engine coolingPart report

2016 Jeep Wrangler Engine cooling Problems

Complaints
6about this part
Share
1%of 462 total for the year
Median mileage
67,959miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the engine cooling of the 2016 Jeep Wrangler, 1% of the 462 complaints for this model year. Where a mileage was given, the median is 67,959 miles. 1 a fire, according to the filers.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“The contact owns a 2016 Jeep Wrangler. The contact stated that the factory oil filler adapter housing was made of plastic, which heated up, warped, and cracked over time. This structural failure caused engine oil to drip and spray across the entire underside of the vehicle, heavily coating the frame and the hot exhaust system. Due to the oil contacting the hot exhaust, a strong burning oil odor entered the vehicle cabin. The contact explicitly stated that their life was in danger due to the continuous failure. …”

NHTSA complaint #11771092, filed 2026-10, 111,000 miles

“The contact owns a 2016 Jeep Wrangler. The contact stated while driving at an undisclosed speed, she heard a tapping sound under the hood of the vehicle. No warning light was illuminated. The dealer was notified of the failure and indicated that the rocker arm and the camshaft needed to be replaced. The vehicle was not diagnosed. The vehicle was not repaired. The manufacturer was notified of the failure and the contact was advised to call the NHTSA Hotline. The failure mileage was 70,218.”

NHTSA complaint #11499392, filed 2022-12, 70,218 miles

“The contact owns a 2016 Jeep Wrangler. The contact stated while driving at an undisclosed speed, there was a significant amount of smoke coming from underneath the hood and entering the cabin of the vehicle through the A/C vents. The contact stated that the failure had occurred while her one-year-old child was inside the vehicle. The check engine warning light was illuminated. The vehicle was taken to McCoy's Auto Repair, where it was diagnosed and determined that the oil filter housing was fractured and needed to be replaced. The vehicle was not repaired. …”

NHTSA complaint #11636280, filed 2025-01, 150,000 miles

“The contact owns a 2016 Jeep Wrangler. The contact stated that while the vehicle was parked in the garage, the contact became aware of an oil leak. The contact stated that the leak was small. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed and determined that the engine oil cooler needed to be replaced. Additionally, the contact had previously replaced the thermostat at an independent mechanic due to the parts being on backorder. The contact stated that the failure might be due to the cold temperatures. …”

NHTSA complaint #11650203, filed 2025-03, 43,000 miles

“The contact owns a 2016 Jeep Wrangler. The contact stated that upon replacing the engine oil himself, he noticed that oil was leaking onto the transmission. The contact stated that there was no smell of oil burning or any smoke coming from the oil leak. There were no warning lights illuminated. The vehicle was taken to the dealer where it was diagnosed that the oil filter housing was cracked. The dealer replaced the oil filter housing and repaired the vehicle; however, while the mechanic was test driving the vehicle, the vehicle caught on fire under the hood. There were no injuries sustained. …”

NHTSA complaint #11454565, filed 2022-02, 65,700 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
202511%
202321%
202220%
202140%
202061%
201951%
201840%
201710%
201661%
201541%
201491%
201341%
201271%
201161%
2010152%
200951%
2008111%
2007285%
2006203%
2005223%
200495%
200366%
200244%
20012112%
2000156%
19995023%
19985320%
199710927%
19953216%
19942517%
19931817%
199279%
19911216%
199079%
19891016%
1988714%
1987513%

Other parts of the 2016 Jeep Wrangler

Brakes
137 complaints
Engine
88 complaints
Air bags
77 complaints
Transmission and drivetrain
74 complaints
Electrical system
57 complaints
Other or unknown
57 complaints
Vehicle speed control
36 complaints
Steering
28 complaints
Body and structure
18 complaints
Fuel system
14 complaints
Electronic stability control
13 complaints
Forward collision avoidance
12 complaints

← All problems reported for the 2016 Jeep Wrangler

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology