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Engine coolingPart report

2018 Jeep Wrangler Engine cooling Problems

Complaints
4about this part
Share
0%of 1,827 total for the year
Median mileage
81,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the engine cooling of the 2018 Jeep Wrangler, 0% of the 1,827 complaints for this model year. Where a mileage was given, the median is 81,000 miles.

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 2018 Jeep Wrangler. The contact stated that while driving at an undisclosed speed, the steering wheel seized and the vehicle failed to accelerate. The electronic parking brake, check engine, and several other unknown warning lights were illuminated. The contact shifted to park (P) and then drive (D) and was able to continue driving. The vehicle was taken to the dealer, who was unable to duplicate the failure. The vehicle was taken to an independent mechanic, who determined that coolant had leaked into the computer and damaged the battery pack control module. …”

NHTSA complaint #11743143, filed 2026-06, 100,000 miles

“The contact owns a 2018 Jeep Wrangler. The contact stated that while his daughter was driving at an undisclosed speed, the vehicle stalled. No warning light was illuminated. The vehicle was towed to an independent dealer where it was diagnosed that camshaft phasers had failed, and metal shavings were discovered inside the engine. The vehicle was not repaired. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 81,000.”

NHTSA complaint #11605103, filed 2024-07, 81,000 miles

“The contact owns a 2008 Jeep Wrangler. The contact stated that while driving at an undisclosed speed, the steering wheel seized. The stability control, traction control, and ABS warning lights were illuminated, and the Service Shifter message was displayed. The vehicle was taken to an independent mechanic who replaced the main battery and auxiliary battery, tested the starter and alternator, and inspected the wires and fuses; however, the failure recurred. The mechanic diagnosed that the ECM needed to be replaced and advised the contact to tow the vehicle to the dealer. …”

NHTSA complaint #11484781, filed 2022-09, 44,000 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 2018 Jeep Wrangler

Steering
1,117 complaints
Suspension
343 complaints
Electrical system
268 complaints
Other or unknown
213 complaints
Transmission and drivetrain
177 complaints
Engine
99 complaints
Body and structure
97 complaints
Brakes
68 complaints
Wheels
61 complaints
Electronic stability control
46 complaints
Visibility (wipers, defrost, mirrors)
43 complaints
Vehicle speed control
24 complaints

← All problems reported for the 2018 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