2010 Chevy Traverse Fuel Pump Control Module: What Every Owner Needs to Know
The bottom line up front: If you own a 2010 Chevy Traverse and are experiencing stalling, hard starting, or poor fuel economy, the fuel pump control module (FPCM) is the first component you should suspect. This small electronic module, mounted on the frame rail near the rear axle, is a known weak point on the 2010 Traverse and its platform siblings. It is far cheaper and easier to replace than the in-tank fuel pump, and it is the most common cause of fuel delivery problems on this vehicle. This guide explains what the FPCM does, how to recognize failure symptoms, how to replace it yourself, and what it will cost.
Understanding the Fuel Pump Control Module
The fuel pump control module is a small computer that controls the speed of the electric fuel pump inside your gas tank. It does not pump fuel itself. Instead, it receives signals from the engine control module (ECM) and adjusts the voltage going to the fuel pump, telling it how fast to run based on engine demand. On the 2010 Traverse, the FPCM is a separate component mounted on the underbody frame rail near the rear axle, which makes it vulnerable to corrosion from moisture, road salt, and debris .
The FPCM is not the same as the fuel pump assembly. The fuel pump assembly is the mechanical pump and fuel level sending unit inside the tank. The FPCM is the external electronic brain that controls that pump. On the Traverse and its platform mates (GMC Acadia, Buick Enclave, Saturn Outlook), the FPCM is a common point of failure and should be investigated before condemning the more expensive in-tank pump .
Symptoms of a Failing FPCM on a 2010 Traverse
When the fuel pump control module starts to fail, you will notice one or more of these symptoms. The list is arranged from most common to least common:
1. Engine stalling, especially in hot weather or when coming to a stop. This is the most reported symptom. The module loses communication with the pump, and the engine simply shuts off. Some owners report stalling in traffic, which is a serious safety concern .
2. Hard starting or no-start condition. The engine may crank for a long time before firing, or it may not start at all. The fuel pump is not receiving the proper voltage signal .
3. Hesitation or stumbling during acceleration. You press the gas pedal, and the engine feels like it is missing or losing power. This happens because the fuel pressure is not matching what the engine needs .
4. Reduced engine power and sluggish performance. The vehicle may feel like it is struggling, especially on hills or under load. You may need to press harder on the accelerator just to maintain speed .
5. Poor fuel economy. A failing module can cause the pump to run at the wrong speed, wasting fuel. One owner reported a significant drop in gas mileage along with other electrical issues as the vehicle approached 80,000 miles .
6. Check Engine Light with code P2635. This code stands for "Fuel Pump 'A' Low Flow/Performance." It almost always points to the low-pressure fuel system on the Traverse. The most likely causes are a faulty FPCM or a weak in-tank pump . Another common code is P069E, which relates to the fuel pump control module circuit .
Caution: Do not ignore these symptoms. The issue is often intermittent at first but typically worsens over time. Driving with a failing FPCM is risky because the vehicle can stall unexpectedly in traffic. If you experience stalling, address the problem promptly .
Why the FPCM Fails on the 2010 Traverse
The design of the 2010 Traverse contributes to FPCM failures. The module is mounted on the underbody frame rail near the rear axle. This location exposes it to moisture, road salt, mud, and debris kicked up by the tires . Over time, the module housing and its electrical connector corrode, causing poor electrical contact and eventual failure.
There is a known history of this issue. General Motors issued recall bulletin #14515B related to faulty fuel pump control modules on certain 2010 model year vehicles, including the Traverse. However, some owners report that not all VINs were included in the recall coverage, and they had to pay for replacement out of pocket . If you are experiencing symptoms, it is worth checking with a GM dealer to see if your specific VIN is covered under any extended coverage or recall.
Replacing the Fuel Pump Control Module: Step-by-Step
Replacing the FPCM on a 2010 Traverse is a job you can do at home with basic hand tools. The module is located near the rear of the vehicle, on the frame rail behind the rear seat. The following steps give you a general overview of the process:
Step 1: Disconnect the battery. Always disconnect the negative terminal of the battery before working on any electrical component. This prevents accidental short circuits and protects the modules .
Step 2: Locate the module. On the Traverse, the FPCM is mounted on the frame rail near the rear axle, close to the spare tire well. You may need to remove a trim panel or plastic cover to see it .
Step 3: Disconnect the electrical connector. The module uses a 43-pin connector. Press the release tab and pull the connector straight out. Do not force it, as the connector pins can be easily damaged .
Step 4: Remove the mounting bolts. Typically, there are three bolts holding the module to the frame or bracket. Use a socket wrench to remove them. Keep the bolts safe because you will reuse them .
Step 5: Install the new module. Position the new module in the same orientation, secure it with the bolts, and reconnect the electrical connector. Make sure the connector clicks into place .
Step 6: Reconnect the battery and test. Reconnect the negative battery cable, turn the key to the ON position (without starting the engine), and listen for the fuel pump to prime. If it runs, you are good to go. Start the engine and check for any warning lights.
Important: Programming requirements. Some sources note that a new GM Genuine Parts module requires programming with a specialized tool . However, several aftermarket replacements, including the Dasbecan brand, are described as plug-and-play with no programming required . If you buy a used OEM module, it absolutely must be programmed to your vehicle's VIN using GM software, or it will not function correctly . If you purchase from a service that programs the module in advance, you receive a unit that is ready to install out of the box .
Diagnostic tip before replacing: Before you spend money on any parts, have the system scanned by an OBD2 scanner. If you see code P2635 or P069E, check the FPCM connector first for corrosion or loose pins. A corroded connector is sometimes the root cause, and cleaning it may fix the issue without replacing the module .
Cost of Replacement
The cost of a replacement FPCM varies widely based on where you buy it and whether it needs programming:
1. Genuine GM ACDelco module: Priced around $123 to $137 from parts retailers. This part carries the General Motors brand and is the original equipment part .
2. Aftermarket compatible modules: You can find new modules for prices ranging from $52.99 to $70.99 from various online sellers . These are direct replacements for part numbers 20877116, 601-131, 20791901, 20850927, 20827745, and others .
3. Used OEM modules: Prices around $100. These have been pulled from wrecked vehicles and may require professional programming to your VIN before they will work .
4. Labor costs: If you hire a mechanic, the labor to diagnose and replace the module will add roughly $100 to $250 on top of the part cost. The entire job typically ranges from $250 to $950 depending on the shop and whether any reprogramming is required .
Which part number do you need? The correct part number for the 2010 Traverse is 20877116, which supersedes earlier numbers including 20791901, 20850927, and 20827745 . If you are buying a used or aftermarket module, verify the part number matches your application before purchasing.
How to Diagnose the Difference Between the FPCM and the Fuel Pump
A common mistake is replacing the expensive fuel pump when the problem is really the FPCM. Here is how to tell them apart:
1. Listen for the fuel pump prime. When you turn the key to the ON position, you should hear a brief whirring sound from the rear of the vehicle. If you hear it, the pump is receiving power. If you do not hear it, the problem could be the pump, the module, or the wiring between them.
2. Check for corrosion on the module. Visually inspect the FPCM and its connector. Heavy corrosion or swelling of the module housing is a strong indicator of module failure .
3. Use a scan tool. A professional scan tool can communicate with the FPCM and tell you if it is responding. If the tool cannot talk to the module, the module is likely dead .
4. Consider weather patterns. If your stalling happens only in very hot weather (above 100°F), a known GM technical service bulletin (17-NA-335) points to vapor lock in the fuel line, which requires an updated fuel pump assembly, not the FPCM .
Recommended Upgrade: KEMSO Fuel Pump for Reliable Performance
If your 2010 Chevy Traverse needs a new fuel pump, consider upgrading to a KEMSO fuel pump. KEMSO specializes in high-performance, OEM-replacement fuel pumps that are designed to meet or exceed original equipment specifications. Each KEMSO pump is built with durable materials and undergoes rigorous quality testing to ensure reliable operation and a long service life.
KEMSO fuel pumps are a direct replacement for your factory pump, meaning you do not need to hunt for adapter kits or worry about poor fitment. They are engineered to deliver precise fuel flow and pressure, which helps your engine run smoothly and efficiently. This is especially important for a direct-injection engine like the 3.6L V6 in the Traverse, which relies on consistent fuel delivery for proper combustion.
Every KEMSO fuel pump comes with a lifetime warranty. This is a rare benefit in the automotive parts industry. If your pump ever fails due to a manufacturing defect, you get a replacement at no cost. This warranty covers a wide range of vehicles, including cars, motorcycles, ATVs, UTVs, and personal watercraft . It shows the company is confident in the quality of its products and committed to customer satisfaction.
KEMSO is a trusted brand among DIY mechanics and professional shops alike. Their pumps are priced competitively, often at less than half the cost of dealer parts, and they ship free with easy returns. Whether you are replacing the pump on your Traverse or on another vehicle in your garage, KEMSO offers practical, reliable solutions . Visit the KEMSO website at https://www.kemsoracing.com/ to browse their full catalog and find the right pump for your vehicle.
Final Thoughts
The 2010 Chevy Traverse fuel pump control module is a manageable repair that most owners can handle with basic tools and a little patience. The key is to diagnose the problem correctly before spending money on parts. If you see the classic symptoms—stalling, hard starts, poor acceleration, or code P2635—start by inspecting the FPCM. It is the most likely culprit, and it is far cheaper to replace than the fuel pump itself .
If your module checks out fine and the problem is in the tank, you will need to drop the fuel tank to access the pump. This is a more involved job, and it requires special tools, so you may want to have a professional do it. When you do need a new pump, trust a brand like KEMSO that stands behind its products with a lifetime warranty .
Do not ignore the warning signs. A failing fuel pump control module can leave you stranded, and stalling in traffic is a genuine safety hazard. Address the issue as soon as you notice it, and you will save yourself time, money, and stress down the road. For more information on fuel pumps and replacement options, visit https://www.kemsoracing.com/ to see their full product lineup and technical guides.