2022 Jeep Renegade Has A Check Engine Light

Common Causes for the Check Engine Light in Your 2022 Jeep Renegade and How to Resolve Them

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
40% chance it's the
Emissions System
0%
60% chance it's
Something else
The most common reasons a 2022 Jeep Renegade has a check engine light are an emissions system component, a sensor, or a catalytic converter.
  • Emissions System: A faulty emissions system component, such as an oxygen sensor or EGR valve, can lead to increased emissions and trigger the check engine light.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2022 Jeep Renegade has a check engine light?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

A faulty oxygen sensor is one of the most common causes of a check engine light. Symptoms may include a decrease in fuel mileage, hesitation or misfiring from the engine, rough idling or even stalling. A faulty sensor may cause the vehicle to fail an emissions test.

Any time there is an emissions fault the check engine light will be displayed. The purpose of the check engine light is to inform the driver that an emission related fault has been found, and that there are on-board diagnostic (OBD) trouble codes stored in the powertrain or engine control module. Additionally, since the emissions systems are so intertwined into engine control and transmission control systems, symptoms may include nearly any sort of drivability concerns. This may include harsh shifting, failure to shift, hesitation on acceleration, jerking, engine failure to start or run, loss of power, or any number of other drivability issues.

Due to the nature of electrical systems on modern vehicles, the range of problems these can cause are nearly limitless. However, there is a way to categorize them in two ways. Permanent and intermittent problems. Permanent problems appear and remain. This may be the vehicle will not start, the radio does not work, or the door chime will not turn off among many, many others. These problems are more straight-forward to diagnose since they present themselves at all time. This means there will always be a fault to find. Intermittent electrical problems, however, can be difficult or impossible to locate, since they appear then disappear without warning. The best case scenario for an intermittent issue is when replicating the problem is easily accomplished and understood. This allows a technician to make an issue semi-permanent, allowing them to find the fault. Other issues that come and go without warning and cannot be replicated on demand must occur when the technician is servicing the vehicle, otherwise there is no problem to correct. It is most important to understand that electrical system faults always require inspection, and can include the vehicle working in any manner, or not working at all.

Like we noted in the last section, general diagnosis symptoms are the most vague of the bunch. There are several diagnostic spectrums, electrical diagnosis, drivability diagnostics, engine diagnostics, transmission diagnostics, and the list could continue for about 5 or 10 more spectrums of diagnostics. The most important take-away here, is that general diagnostics are diagnostics that have no other spectrum in which they fit, or the problem is unknown. This means that any vehicle left outside of a repair facility with the keys and an authorization to perform diagnosis will be diagnosed under the general diagnosis spectrum.

When the Check Engine Light comes on, you may experience engine performance issues such as poor acceleration, rough idling, or an engine that won't start. In some cases, no abnormal symptoms will be experienced. Other systems like the transmission or ABS can cause the Check Engine Light to illuminate and lights for those systems can come on at the same time. Similar lights may say "Check Engine Soon", "Malfunction Indicator Light" or just "Check". In rare case the engine can overheat.

What are the initial diagnostic steps to take for a check engine light on a 2022 Jeep Renegade?

When faced with a Check Engine Light on your 2022 Jeep Renegade, it's crucial to adopt a systematic diagnostic approach. Begin by checking for straightforward issues, such as ensuring that the gas cap is tightly secured, as a loose cap is a common trigger for the light. If the light persists, utilize an OBD-II scanner to read the diagnostic trouble codes, which will provide insight into the underlying problem. This step is essential for identifying specific issues related to the emission system, ignition system, or other critical components. Once you have the codes, focus on addressing the root cause of the problem rather than simply resetting the light. By following this methodical process, you can effectively diagnose and resolve the issue, ensuring your Jeep Renegade runs smoothly and efficiently.

What common issues trigger the check engine light in a 2022 Jeep Renegade?

When the check engine light comes on in your 2022 Jeep Renegade, it can be a source of concern, but understanding the common issues that may trigger this warning can empower you to take action. One frequent culprit is a loose or damaged gas cap, which can lead to fuel vapor leaks detected by the EVAP system. Another common issue is a malfunctioning oxygen sensor, which plays a crucial role in monitoring exhaust gases and ensuring optimal engine performance. Additionally, problems with the catalytic converter can also illuminate the check engine light, indicating that the vehicle's emissions control system may be compromised. Other potential triggers include a faulty EGR valve, a malfunctioning mass airflow (MAF) sensor, or issues with the ignition coil. By being aware of these common problems, you can perform preliminary checks and potentially resolve minor issues before they escalate into more significant repairs, saving you time and money.

How urgent is it to address the check engine light in a 2022 Jeep Renegade?

Addressing the check engine light in a 2022 Jeep Renegade is of utmost importance, as neglecting this warning can lead to serious consequences. The check engine light serves as an alert from the vehicle's onboard diagnostic system, indicating that there is a problem with the engine or emission control system. Ignoring this signal can result in further damage, potentially leading to costly repairs down the line. For instance, a simple issue like a loose gas cap can escalate if left unchecked, while more severe problems, such as a faulty oxygen sensor or a malfunctioning catalytic converter, can significantly impact the vehicle's performance and emissions. Moreover, if the check engine light is flashing, it indicates a critical issue that requires immediate attention, as it may signify a catastrophic misfire that could damage the catalytic converter and lead to backfiring. Therefore, for those considering a DIY approach, it is essential to prioritize diagnosing and addressing the check engine light promptly to ensure the safety and longevity of the vehicle.

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2022 Jeep Renegade Check Engine Light: Common Causes & Costs