2002 Chevrolet Silverado 2500 Cruise Control Isn't Working

Fixing Cruise Control Malfunctions in 2002 Chevrolet Silverado 2500

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Reviewed by
Aisha
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 2002 Chevrolet Silverado 2500 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 2002 Chevrolet Silverado 2500 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 throttle position sensor fails, the engine's computer tends to overcompensate with fuel, leading black exhaust coming from the tailpipe. There is a strong possibility of engine misfires, and the check engine light will come on.

Throttle position sensors can also develop "dead spots," or certain places along the throttle curve where it doesn't get a reading. When this happens, the above symptoms can occur but then stop when you further press or let off the gas pedal.

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.

A faulty cruise control module will simply result in deactivation of cruise control settings. This is because a detected error in the cruise control system could lead to hazardous driving conditions, so the module will be disabled, and the cruise control system warning light will be displayed. This will be a different message depending on make and model, and a warning light or message may be displayed on the driver instrument cluster.

What are the initial steps to diagnose the non-functioning cruise control in a 2002 Chevrolet Silverado 2500?

When diagnosing the non-functioning cruise control in a 2002 Chevrolet Silverado 2500, it's essential to adopt a methodical diagnostic approach. Begin by checking the cruise control fuse in the fuse box, as a blown fuse is a common and easily fixable issue. Next, inspect the cruise control buttons on the steering wheel to ensure they are operational, as malfunctioning buttons can prevent the system from engaging. Following this, verify the speed sensor's functionality, since a faulty sensor can disrupt the cruise control's operation. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into any underlying issues. Additionally, inspect the vacuum lines for leaks or damage, as these are critical in older models for the cruise control system to function correctly. Finally, ensure that the brake and clutch switches are working properly, as these components are designed to disengage the cruise control when activated. By systematically addressing these areas, you can effectively diagnose and potentially resolve the cruise control issue in your Silverado.

What are the common problems that could cause the cruise control to stop working in a 2002 Chevrolet Silverado 2500?

When diagnosing cruise control issues in a 2002 Chevrolet Silverado 2500, it's essential to consider several common problems that could be at play. One of the primary culprits is a faulty brake light switch, which can prevent the cruise control from engaging since the system is designed to disengage when the brake pedal is pressed. Additionally, a blown fuse in the vehicle's fuse box can disrupt the cruise control system, leading to a complete failure of the feature. Another potential issue is a defective speed sensor, which is crucial for maintaining a constant speed; if it malfunctions, the cruise control may not function properly. Furthermore, vacuum leaks within the cruise control system can result in a loss of vacuum pressure, significantly affecting its performance. Lastly, a malfunctioning cruise control module may also be responsible for the system's failure, and in some cases, it may require replacement. By understanding these common problems, DIYers can effectively troubleshoot and potentially resolve the cruise control issues in their Silverado.

How urgent is it to address the non-functioning cruise control in a 2002 Chevrolet Silverado 2500?

Addressing the non-functioning cruise control in a 2002 Chevrolet Silverado 2500 is important, as neglecting this issue can lead to several consequences that may affect both safety and vehicle performance. While the immediate drivability of the vehicle may not be compromised, a malfunctioning cruise control system can indicate deeper electrical or sensor-related problems that, if left unchecked, could escalate into more significant issues. The convenience of cruise control, especially during long drives, cannot be overstated; it helps reduce driver fatigue and can enhance fuel efficiency. Therefore, it is advisable to prioritize the inspection and repair of the cruise control system. By doing so, you not only ensure a more comfortable driving experience but also mitigate the risk of incurring more costly repairs in the future. Taking prompt action can safeguard your vehicle's overall functionality and maintain your safety on the road.

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