Chevrolet Tahoe Ignition Switch Guide for 2013-2020 Models
Solving starting problems and electrical issues in your Tahoe begins with understanding the ignition switch.
- First, confirm your Tahoe's generation (2013-14 vs. 2015-20) and ignition type (keyed vs. push-button) before buying a part.
- Symptoms like a no-start or flickering dash lights can mimic a bad battery or starter, but are classic signs of a failing ignition switch.
- For keyed models, a 30-minute anti-theft relearn procedure is mandatory after replacement or the vehicle will not start.
- Check for open recalls related to the ignition system for your VIN, as some 2013-2015 models had known defects.
Is Your Tahoe a 2013-2014 or a 2015-2020? It Matters.
Before you diagnose a problem or buy a part, you must know which generation of Tahoe you own. The 2013-2020 range covers two different vehicle designs with different ignition systems.
- 2013-2014 Tahoe (GMT900 Platform): These models use a traditional keyed ignition. The part you need is the electronic ignition switch, which is located inside the steering column and is separate from the mechanical ignition lock cylinder where you insert your key.
- 2015-2020 Tahoe (K2XX Platform): This generation offered two systems. The standard system is a keyed ignition, similar in concept to the earlier models but with different parts. Higher trims often have a push-button start system, where the 'switch' is the button assembly on the dashboard.
Common Failure Symptoms
A failing ignition switch can cause electrical problems that seem unrelated. It often mimics the symptoms of a dead battery or a bad starter.
- No Start or No Crank: You turn the key or press the button, the dashboard may light up, but the engine does not turn over.
- Starts and Immediately Stalls: The engine fires up for a moment and then shuts off. This is often related to the anti-theft system losing its connection with the key.
- Intermittent Electrical Power: The radio, climate control, or dashboard lights may flicker or shut off randomly, especially when hitting a bump.
- Key Is Hard to Turn or Gets Stuck: While this can be the lock cylinder, it can also be related to the electronic switch it connects to.
- Accessories Don't Work: The radio and other systems don't power on when the key is in the 'Accessory' or 'Run' position.
Known Issues, Recalls, and Service Bulletins
GM issued recalls in the mid-2010s for ignition system problems. NHTSA Recall 15573 affected some 2014-2015 Tahoes with keyed ignitions. The defect could cause the ignition to slip from 'Run' to 'Accessory' after a jolt, leading to a loss of engine power, power steering, and disabling airbags. Another recall impacted some 2013 models where the key could be removed from the ignition when not in the 'Off' position. Always check for open recalls on your specific vehicle's VIN with the NHTSA.
Choosing the Right Aftermarket Ignition Switch
When replacing your ignition switch, you have options. OEM is not the only choice, and quality aftermarket parts can offer reliable performance at a better price.
OEM vs. Aftermarket Quality
For a part like this, an OEM switch from ACDelco is a reliable baseline. However, top-tier aftermarket brands like Standard Ignition (Standard Motor Products) are known for producing parts that meet or exceed OEM specifications and are a trusted choice for professional mechanics. Dorman offers a more budget-friendly option that is generally considered a direct functional replacement, though some user reviews point to mixed long-term durability.
| Brand Tier | Available Brands | General Assessment |
|---|---|---|
| Professional Grade Aftermarket | Standard Ignition (SMP) | Excellent reputation for quality and durability, often preferred by repair shops. |
| Standard Replacement | Dorman, Rostra Powertrain | Cost-effective solutions that restore original function. Dorman is widely available with extensive vehicle coverage. |
| Original Equipment | ACDelco GM Genuine | The same part your vehicle was built with. A guaranteed fit and function, but at a higher price point. |
Frequently Asked Questions (FAQ)
Is the ignition switch the same as the ignition lock cylinder?
No. The lock cylinder is the mechanical part your key fits into. The ignition switch is the electronic part behind it that sends power to the vehicle. They are separate parts but work together. If your key is physically hard to turn, the lock cylinder might be the issue. If you have electrical problems, the switch is a more likely culprit.
Do I need to program a new ignition switch?
The switch itself does not require programming. However, after installing a new switch on a keyed model, you MUST perform a 30-minute anti-theft relearn procedure. This involves cycling the key in the ignition in a specific sequence to allow the vehicle's computer to recognize the new component. Without this step, the engine will not start.
🎬 Watch: How to perform the GM anti-theft relearn procedure.Why won't my push-button start work?
Before blaming the switch, try the simple things. The number one cause is a weak or dead battery in your key fob. A weak vehicle battery can also cause no-start issues where the dash lights up but there isn't enough power to crank the engine. If both batteries are good, the switch itself could be faulty.
Can I replace the ignition switch myself?
Yes, this is a DIY-feasible job for someone with basic tools and patience. The process typically involves removing the plastic covers around the steering column to access the switch. The most important part is performing the key relearn procedure correctly after installation. Watch a vehicle-specific tutorial video before you begin.
🎬 Watch: Step-by-step ignition switch replacement for 2013-2014 models.Helpful Videos
Technical Specifications
OEM Part Numbers: 84510070 26061331 10392423
The ignition switch for keyed models is an electronic component located on the steering column, distinct from the lock cylinder. Push-button models integrate the switch into the dashboard button assembly. Both types connect to the Body Control Module (BCM) and are integral to the vehicle's anti-theft system.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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