Jeep Wrangler Fault Codes
You can find common Jeep Wrangler fault codes on this page that when clicked take you to a detailed description.
You can also type in the fault code you are getting below to find a more detailed description.
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Jeep Wrangler Recall Notices
Common Jeep Wrangler Codes
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Jeep Wrangler Recalls
When a car manufacturer detects a problem with a model they put out a recall notice and more often than not offer to fix the problem free of charge.
You can check to see if your Jeep Wrangler has any recall notices on our sister site AutoRecalls.co, sorted by model year.
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Common Wrangler Fault Codes
These are the most common Wrangler fault codes that people are searching for.
4/10
P0128
Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)
Learn More Fixes
- Manufacturer: Jeep
About the Wrangler
The Jeep Wrangler is a series of off-road vehicles that have been manufactured by Jeep since 1986. There have been four generations since its initial debut. The fourth generation hit the markets in 2017.
The Wrangler is considered one of the more rugged offerings from Jeep, especially when compared to vehicles like the Cherokee.
It also shares many similarities to the Jeep Gladiator, which is a pickup truck version.
It has had a long-running rivalry with the Land Rover Defender, although the models are significantly different in recent times. Other rivals include the Nissan Pathfinder and Toyota 4Runner.
Thankfully, the Wrangler has not had to deal with too many serious issues. In fact, the most commonly reported fault code is not serious at all. Fault code P0456 is logged when a small leak has been detected from the EVAP system.
This is typically the result of a loose or defective gas cap. Owners have also reported that the battery can cause a leak in the nearby vacuum line.
Similarly, fault code P0455 is another common code that owners have had to face. This code indicates that there is a more significant leak in the EVAP system.
The presence of both of these codes likely means that the cause of the problem is not a loose gas cap. Checking the known leak point near the battery is a good start.
Another common issue for the Wrangler is P0128, which indicates that there is an issue with the thermostat. The code states that the coolant is not reaching the required temperature to activate the thermostat.
In most cases, this will be the result of a failed thermostat. It is also fairly common that this is caused by incorrect engine coolant fluid levels.
