AutoCodes – Chevrolet – P0826 2018 Chevrolet Silverado

P0826 2018 Chevrolet Silverado Code - Up And Down Shift Switch Circuit

Quick Answer

The Driver Shift Request (DSR) allows the driver to select the desired range of gears for current driving conditions. Common causes include Faulty Transmission Shift Lever, Transmission Shift Lever harness is open or shorted, Transmission Shift Lever circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0826 2018 Chevrolet Silverado indicates Up And Down Shift Switch Circuit.
Common causes: Common causes include Faulty Transmission Shift Lever, Transmission Shift Lever harness is open or shorted, Transmission Shift Lever circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 416

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 02, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0826 2018 Chevrolet Silverado Description

The Driver Shift Request (DSR) allows the driver to select the desired range of gears for current driving conditions. The DSR shift system is activated when the gear selector is in the manual position. The DSR system is deactivated in all other range positions. Pressing the plus (+) switch once will command the Body Control Module (BCM) to signal the Transmission Control Module (TCM) to upshift to the next high gear. Pressing the minus (−) switch once will command the BCM to signal the TCM to downshift to the next lowest or previous gear. The TCM will not allow a downshift if the transmission is compromised by over-speeding. The automatic transmission manual shift switch is comprised of three different resistor values in series and two switches. The BCM supplies a 12-volt circuit to the automatic transmission manual shift switch. The signal circuit varies the voltage back to the body control module depending on which switch is depressed. The Diagnostic Trouble Code (DTC) will be set when the BCM detects an invalid voltage on the TAP up/down signal circuit for 1 minute.

OBDII Code P0826 2018 Chevrolet Silverado - Up And Down Shift Switch Circuit - AutoCodes.com — P0826 2018 Chevrolet Silverado Code - Up And Down Shift Switch Circuit

What does this mean?

What are the Possible Causes of the DTC P0826 2018 Chevrolet Silverado?

Faulty Transmission Shift Lever
Transmission Shift Lever harness is open or shorted
Transmission Shift Lever circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC P0826 2018 Chevrolet Silverado?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0826 2018 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0826 2018 Chevrolet Silverado code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0826 2018 Chevrolet Silverado Code

1. What does the OBDII code P0826 mean on a 2018 Chevrolet Silverado?

P0826 indicates a fault in the Up and Down Shift Switch Circuit, which is part of the transmission gear selection system.

2. What are the common symptoms of code P0826 in a 2018 Chevrolet Silverado?

Symptoms may include difficulty shifting gears, transmission stuck in one gear, or the check engine light being illuminated.

3. What causes the P0826 code to appear in a Chevrolet Silverado?

Common causes include a faulty shift switch, damaged wiring or connectors in the shift circuit, or a malfunctioning transmission control module (TCM).

4. Can I still drive my 2018 Chevrolet Silverado with a P0826 code?

While the vehicle may still be drivable, you could experience shifting issues that might worsen over time, potentially leading to further transmission damage.

5. How is the P0826 code diagnosed?

A mechanic will typically use a scan tool to confirm the code, inspect the shift switch and its wiring, and test the transmission control module for faults.

6. How do I fix the P0826 code on a 2018 Chevrolet Silverado?

Repairs may involve replacing the up and down shift switch, repairing damaged wiring, or reprogramming or replacing the transmission control module if necessary.

7. Is the P0826 code specific to manual or automatic transmissions?

The P0826 code is more commonly associated with vehicles equipped with manual shift modes or electronic shift selectors on automatic transmissions.

8. Does a faulty shift switch always require replacement for P0826?

Not always. Sometimes the issue is due to corroded or loose wiring connections, which can be repaired without replacing the switch.

9. How much does it cost to fix a P0826 code on a 2018 Chevrolet Silverado?

Repair costs can vary but typically range from $100 to $400, depending on whether the issue is with the shift switch, wiring, or TCM.

10. Can a P0826 code trigger other transmission-related codes?

Yes, if the issue affects the overall operation of the transmission system, it may trigger additional codes related to gear selection or shift performance.