2020 Chevrolet Tahoe Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2020 Chevrolet Tahoe

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Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2020 Chevrolet Tahoe cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty or malfunctioning sensor can lead to incorrect readings, causing issues with engine performance or other systems relying on accurate data.
  • Control Module: A faulty control module can lead to erratic vehicle behavior or failure of various electronic systems due to improper signal processing.
  • Throttle: A faulty throttle body or a defective accelerator pedal position sensor may be causing inconsistent throttle response.
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 2020 Chevrolet Tahoe cruise control isn't working?

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.

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.

What are the steps to diagnose the cruise control issue in a 2020 Chevrolet Tahoe?

To diagnose a cruise control issue in your 2020 Chevrolet Tahoe, start with the simplest step: check the cruise control fuse. A blown fuse can easily disrupt the system, so ensure it is intact before moving on. Next, inspect the cruise control buttons on your steering wheel for any signs of damage or sticking, as these can prevent proper operation. If the buttons are functioning, use an OBD-II scanner to check for any error codes that may indicate specific problems within the cruise control system. Following this, test the cruise control module to confirm it is sending signals correctly. Additionally, examine the vehicle speed sensor, as it is crucial for the cruise control's functionality. Finally, inspect all wiring and connections related to the cruise control system for any damage or corrosion that could be causing the issue. By following this diagnostic approach, you can systematically identify the root cause of your cruise control problem and take the necessary steps to fix it.

What are the common problems that could cause the cruise control to stop working in a 2020 Chevrolet Tahoe?

When the cruise control in your 2020 Chevrolet Tahoe ceases to function, several common problems may be at play. One of the first areas to investigate is the brake pedal switch, as a faulty switch can prevent the cruise control from engaging, given that it is designed to disengage when the brake is applied. Additionally, issues with the speed sensor can disrupt the system's ability to maintain a steady speed, leading to cruise control failure. It's also wise to check the fuse box for any blown fuses related to the cruise control system, as replacing a blown fuse can often resolve the issue. Furthermore, a malfunction in the throttle control system can hinder the cruise control's performance, making it essential to ensure that this component is functioning correctly. The Electronic Control Module (ECM) is another critical element; if it encounters problems, it can significantly impact the cruise control's operation. Lastly, inspect the wiring for any damage or loose connections, as faulty wiring can disrupt communication between the various components of the cruise control system. By systematically addressing these potential issues, you can effectively diagnose and potentially fix the cruise control problems in your Tahoe, ensuring a smoother driving experience.

How urgent is it to address the malfunctioning cruise control in a 2020 Chevrolet Tahoe?

Addressing the malfunctioning cruise control in a 2020 Chevrolet Tahoe is of utmost urgency due to the significant safety risks it poses. A malfunction can lead to unexpected acceleration or deceleration, which can endanger not only the driver but also other road users. Additionally, a faulty cruise control system can create discomfort during long drives, detracting from the overall driving experience. Ignoring these symptoms may lead to more severe issues within the vehicle's systems, resulting in costly repairs down the line. Therefore, it is crucial for Tahoe owners to prioritize the diagnosis and repair of cruise control issues to ensure a safe and enjoyable driving experience while preventing further damage to their vehicle.

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