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.
When the vehicle speed sensor fails or the wiring harness prevents signal transmission, the speedometer is the first thing that will stop functioning properly. This can be an intermittent issue where the speedometer only works occasionally, the speedometer may cease all function, or the speedometer may read erratically or incorrectly. Also, the traction control and anti lock brake warning lights specific to each vehicle may be illuminated, depending on the design of those systems. You may notice the vehicle hesitate to accelerate, cruise control will not function properly, and the vehicle may not shift properly through all of the gears.
In the event that a wheel speed sensor fails, the ABS, traction control system (TCS) and manufacturer specific stability control system lights will illuminate, informing the driver that the systems are disabled. The vehicle will be more prone to tire slip, and normal driving patterns may need to be adjusted to correct for the loss of computer control. On older vehicle's, the speedometer can be affected, causing illumination of the check engine light as well.
The cruise control switch can cause complete failure of the cruise control feature, but in a lucky scenario only partial functionality will be lost. This means that the cruise control may come on, but that it will not increase in speed automatically, or the cancel button does not work leading the driver to cancel cruise control with the foot brake. In some vehicles, the cruise control light may illuminate, or a warning message may be displayed due to lack of functionality.
Addressing the non-functioning cruise control in your 2017 GMC Terrain should be considered a priority, even if it may not seem like an immediate emergency. The cruise control system is designed to enhance your driving experience by maintaining a steady speed, which is particularly beneficial during long trips. When this feature fails, it can lead to increased fatigue and discomfort, as you may find yourself constantly adjusting your speed. Moreover, common issues such as a malfunctioning control module, faulty sensors, or throttle actuation problems can escalate if left unattended. For instance, a failing throttle position sensor can cause the engine to overcompensate with fuel, resulting in black exhaust and potential long-term damage to your vehicle. By addressing the cruise control issue promptly, you not only ensure a more enjoyable and safe driving experience but also prevent further complications that could lead to costly repairs down the line. Therefore, it is advisable to take action sooner rather than later to maintain the functionality and safety of your GMC Terrain.
To effectively diagnose cruise control issues in your 2017 GMC Terrain, start by inspecting the sensors for any obstructions such as dirt, snow, or debris that could interfere with their function. Next, verify the condition of the brake switch, as a malfunctioning switch can prevent cruise control from engaging; this component is relatively inexpensive to replace. Additionally, check the hubs for any signs of wear or damage, as these can also contribute to cruise control failures. It’s important to look for any stored diagnostic codes on your vehicle’s dashboard, particularly those related to traction control or Stabilitrak, as these may provide clues to the underlying problem. After these checks, test the cruise control activation by pressing the cruise control button and observing if the corresponding icon lights up on the dashboard. If the system does not respond, experiment with different button combinations, including "set," "res," and the cruise on/off switch. Lastly, while functioning brake lights indicate that the brake system is operational, remember that a faulty brake switch can still affect cruise control functionality, so consider this in your assessment. By following this structured approach, you can systematically identify and address the issues affecting your vehicle's cruise control system.
When diagnosing cruise control failure in a 2017 GMC Terrain, it's essential to consider several common issues that may be at play. One of the primary culprits is a malfunctioning control module, which can disrupt the system's ability to maintain speed. Additionally, problems with sensors or switches, such as those that detect throttle position, can also lead to cruise control malfunctions. Throttle actuation issues are another frequent cause, as they can prevent the system from responding correctly to driver inputs. Furthermore, obstructed sensors due to dirt or ice can hinder performance, while electrical problems, faulty software, and mechanical failures may also contribute to the issue. For DIY enthusiasts, it's crucial to inspect these components thoroughly, as identifying the root cause can often lead to a straightforward fix, ensuring the cruise control system operates smoothly once again.
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