2021 Nissan Altima Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2021 Nissan Altima and How to Fix Them

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Reviewed by
Devin Cabugcal
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 2021 Nissan Altima 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 2021 Nissan Altima 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.

What steps should I take to diagnose the cruise control issue in my 2021 Nissan Altima?

When diagnosing the cruise control issue in your 2021 Nissan Altima, it's crucial to follow a methodical diagnostic approach that prioritizes simpler checks before delving into more complex solutions. Begin by examining the cruise control fuse, as a blown fuse can easily disrupt the system's operation. Next, inspect the cruise control buttons on your steering wheel to ensure they are functioning correctly, since faulty buttons can lead to operational failures. After that, verify the performance of the speed sensor, which is essential for the cruise control system to function properly. Utilizing an OBD-II scanner to check for any error codes can also provide valuable insights into potential issues. If your Altima uses a vacuum-based cruise control system, be sure to inspect the vacuum lines for any leaks or damage that could affect performance. Should these initial steps not resolve the problem, it may be advisable to consult a professional mechanic for a thorough diagnosis and repair. By adhering to this structured approach, you can effectively identify and address any cruise control issues in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2021 Nissan Altima?

When troubleshooting the cruise control system in a 2021 Nissan Altima, it's essential to understand the common problems that may lead to its failure. One of the primary culprits is a faulty brake pedal switch, which is designed to disengage the cruise control when the brake is applied; if this switch malfunctions, it can prevent the system from engaging. Additionally, issues with the speed sensor can disrupt the cruise control's ability to maintain a constant speed, leading to operational failures. Another potential issue is a blown fuse within the cruise control system, which can easily be checked and replaced if necessary. Furthermore, a malfunctioning throttle actuator, responsible for adjusting the engine's throttle, can also impact cruise control functionality. Lastly, problems with the Electronic Control Module (ECM), which oversees various vehicle functions including cruise control, can result in system failures. By identifying and addressing these common issues, you can effectively troubleshoot and potentially restore the cruise control functionality in your Nissan Altima.

How urgent is it to address the malfunctioning cruise control in a 2021 Nissan Altima?

When it comes to a malfunctioning cruise control system in a 2021 Nissan Altima, the urgency to address the issue cannot be overstated. A faulty cruise control can lead to unpredictable vehicle behavior, such as sudden acceleration or deceleration, which significantly increases the risk of accidents on the road. Ignoring these symptoms not only jeopardizes your safety but also that of other drivers and pedestrians. Moreover, delaying repairs can exacerbate the problem, potentially leading to more extensive damage to the vehicle's electronic systems, resulting in higher repair costs down the line. Therefore, it is crucial to prioritize the inspection and repair of the cruise control system, ideally by a qualified mechanic or authorized service center, to ensure that your vehicle operates safely and reliably. Taking prompt action not only safeguards your well-being but also helps maintain the integrity of your vehicle, making it a wise decision for any DIY enthusiast.

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2021 Nissan Altima Cruise Control Issues & Repairs