A Guide to the Manifold Absolute Pressure Sensor for the 2012-2017 Buick Verano
Fix rough idling and poor performance by understanding your Verano's MAP sensor.
- A failing MAP sensor commonly causes a rough idle, poor fuel economy, and hesitation, usually with a P0106, P0107, or P0108 code.
- Replacement is a very simple DIY job, taking less than 15 minutes with just one bolt to remove.
- For best results, choose a premium aftermarket brand like Delphi or Bosch, as they are often the original equipment suppliers for GM.
- There are no known recalls or service bulletins for this specific part on the 2012-2017 Verano; failures are typically from age and wear.
Is Your Buick Verano Running Poorly? It Could Be the MAP Sensor.
If your 2012-2017 Buick Verano is suffering from a rough idle, hesitation when you accelerate, or poor gas mileage, a failing Manifold Absolute Pressure (MAP) sensor is a common suspect. This small electronic part plays a big role in how your engine performs. When it starts sending incorrect data, it can cause a variety of noticeable problems and will almost always trigger the Check Engine Light. Fortunately, this is one of the easier and more affordable sensors to replace on your own.
Symptoms of a Failing MAP Sensor
- Check Engine Light: This is the most obvious sign. A code scan will typically reveal codes like P0106, P0107, or P0108, which point directly to the MAP sensor circuit. 🎬 Watch: How to fix engine codes P0106 and P0107
- Rough or Unstable Idle: Your engine might shake, sputter, or have fluctuating RPMs when the car is stopped.
- Hesitation or Stumbling: When you press the gas pedal, the car may hesitate or jerk before accelerating.
- Poor Fuel Economy: A bad sensor often tricks the engine into using too much fuel, causing you to visit the gas station more often.
- Lack of Power: The car may feel sluggish and weak, especially when trying to accelerate or go up hills.
- Black Exhaust Smoke: In severe cases, an overly rich fuel mixture caused by a bad sensor can result in black smoke from the tailpipe. 🎬 See this guide on MAP sensor symptoms and causes
No Recalls or TSBs Found
As of early 2026, there are no specific recalls or widespread Technical Service Bulletins (TSBs) from GM or the NHTSA related to MAP sensor failure on the 2012-2017 Buick Verano. Failures are typically due to age, heat, and contamination.
Choosing the Right Aftermarket MAP Sensor
When it comes to electronic sensors, brand quality makes a difference. While a budget part might be tempting, it can lead to ongoing performance issues. Here’s a breakdown of available brands:
Tier 1: OEM and Premium Aftermarket
- ACDelco GM Genuine: This is the original factory part. It offers guaranteed compatibility and performance.
- Delphi: As a major Original Equipment (OE) manufacturer for General Motors, Delphi sensors are considered a top-tier, reliable choice that performs like the original.
- Bosch: Another highly respected OE supplier known for accurate and durable sensors.
Tier 2: Quality Aftermarket
- Standard Ignition (SMP) / NGK: These brands are known for making quality replacement parts that are a dependable alternative to OE. They often provide a good balance of price and performance.
Tier 3: Economy Brands
- Walker Products, Spectra, Facet, Global Parts, True Tech: These brands offer a more budget-friendly option. While they can be a good value for a tight budget, for a critical sensor like the MAP, sticking with a Tier 1 or Tier 2 brand is recommended for best results and to avoid potential drivability issues.
Pro Tip: Easy DIY Replacement
Replacing the MAP sensor on a Verano is a great DIY task for beginners. It is located on the side of the intake manifold, held by a single Torx bolt. The job typically takes less than 15 minutes and requires only basic hand tools.
🎬 Watch: A quick walkthrough of the sensor replacement processEstimated Replacement Costs
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket | $39 - $103 |
| New OEM (ACDelco) | $30 - $50 |
| Shop Labor | $40 - $65 |
Frequently Asked Questions
Where is the MAP sensor located on a 2012-2017 Buick Verano?
The MAP sensor is located on the driver's side of the plastic intake manifold. It is a small, black plastic sensor held in place by a single bolt and has an electrical connector attached to it.
Can I just clean my MAP sensor?
Sometimes, the sensor's port can get clogged with carbon or oil. You can try cleaning it gently with a dedicated electronic parts cleaner. However, MAP sensors are sealed electronic units, and if the internal electronics have failed, cleaning will not fix the problem and replacement is necessary.
What tools do I need to replace the Verano MAP sensor?
You will typically only need a small ratchet with a Torx socket (usually a T25 or T30) and possibly a small flathead screwdriver to help release the electrical connector clip. The job is very simple.
Is a more expensive MAP sensor better?
Not always, but quality matters. Brands like Delphi and Bosch are often original equipment suppliers, so their parts are built to a high standard. Cheaper, no-name sensors can have poor quality control, leading to inaccurate readings and persistent engine problems. It's wise to invest in a reputable brand for this part.
Helpful Videos
Technical Specifications
OEM Part Numbers: 12644228 55573248
3-pin connector, bolt-on mount.
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.
- Buick Verano: