The 2012 Honda Civic is a popular and reliable compact car, but like any vehicle, it has its share of known problems. If you own one or are thinking of buying a used model, knowing these common 2012 Honda Civic problems can save you time, money, and frustration. This guide covers the most frequent issues reported by owners and mechanics, along with practical solutions to address them.
2012 Honda Civic Problems
The 2012 model year was part of the ninth generation (FB) of Civics, which recieved some criticism at launch. While generally dependable, several specific areas tend to need attention as the car ages and accumulates miles. Understanding these can help you maintain your Civic effectively.
Common Engine and Performance Issues
Several engine-related complaints are notable for the 2012 Civic. These aren’t universal, but they pop up often enough to be considered common.
Excessive Engine Vibration at Idle
Many owners report a noticeable and sometimes harsh vibration when the car is idling, such as at a stoplight. This can be felt through the steering wheel, seats, and floor.
* Primary Cause: The most common culprit is faulty engine mounts. The 2012 Civic uses hydraulic engine mounts that can leak fluid and fail over time, losing their ability to dampen engine vibrations.
* Solution: A visual inspection of the engine mounts (particularly the rear mount) for cracks, leaks, or collapse is the first step. Replacing the worn mount(s) typically resolves the issue. It’s often recommended to replace them as a set for the best results.
Rough Idle and Stalling
Some drivers experience an unstable idle, where the engine RPMs fluctuate up and down, or in severe cases, the engine may even stall.
* Primary Causes:
* Dirty throttle body and idle air control system.
* Faulty spark plugs or ignition coils.
* A failing mass airflow (MAF) sensor.
* Issues with the variable valve timing (VVT) system or its solenoid.
* Solution:
1. Start with basic maintenance: clean the throttle body and replace the air filter.
2. Check and replace spark plugs if they are worn (common around 100,000 miles).
3. Use a diagnostic scanner to check for error codes related to misfires, the VVT solenoid, or MAF sensor.
4. Cleaning or replacing the affected sensor or component usually fixes the problem.
Check Engine Light for P0420 Code (Catalyst System Efficiency Below Threshold)
This is a very frequent code that indicates the catalytic converter is not working as efficiently as it should.
* Primary Causes:
* A failing catalytic converter (often due to age/mileage).
* A faulty oxygen sensor (upstream or downstream).
* An exhaust leak before the converter.
* Engine problems causing the converter to overheat or become contaminated.
* Solution: Don’t immediately replace the expensive catalytic converter. First, check for exhaust leaks. Then, swap the front and rear oxygen sensors to see if the code changes. If it does, the sensor is likely bad. If the code remains P0420, the catalytic converter itself is probably failing.
Interior and Build Quality Complaints
The ninth-gen Civic’s interior was critiqued for its materials, and a few specific issues are persistent.
Cracking Dashboard
This is arguably the most widespread and frustrating issue for 2012 Civic owners in sunny climates. The dashboard plastic develops large, unsightly cracks, usually starting near the windshield.
* Cause: Prolonged exposure to UV sunlight and heat, combined with material quality that did not hold up well.
* Solution: Unfortunately, repair is difficult. Options include:
* Dashboard Cover: A fitted cover that hides the cracks.
* Professional Repair: A specialist can fill and paint the cracks, but results vary.
* Replacement: Installing a new dashboard is costly. Honda extended a warranty for this issue, but it has long expired for the 2012 model.
Faulty Door Lock Actuators
A clicking sound from the door when using the key fob or power lock switch, followed by the door not locking/unlocking, is a classic sign.
* Cause: The small plastic gears inside the door lock actuator strip or break.
* Solution: The actuator unit must be replaced. It’s a common DIY job that requires removing the door panel. Buying the actuator online and doing it yourself is significantly cheaper than a dealer repair.
Worn Driver’s Seat Fabric
The side bolster on the driver’s seat, especially in models with cloth upholstery, tends to wear out and tear quickly.
* Cause: Frequent entry and exit causing friction on the bolster.
* Solution: Re-upholstering the seat section, using a seat cover, or having a professional repair the fabric are the main options.
Electrical and Accessory Gremlins
Modern cars rely on electronics, and the 2012 Civic has a few weak spots here.
Bluetooth HandsFreeLink (HFL) Connectivity Problems
Owners report the system failing to pair with phones, dropping calls, or having poor audio quality.
* Causes: Outdated software in the head unit or compatibility issues with newer smartphones.
* Solution:
1. First, perform a “system reset” on the HFL unit (check your owner’s manual for the procedure).
2. Delete your phone from the car and the car from your phone, then re-pair.
3. Visit a Honda dealer to see if there are any software updates (TSBs) for the HFL module, though this may involve a cost.
Power Window Regulator Failure
The window may move slowly, make a grinding noise, or stop working entirely.
* Cause: The plastic rollers or cables in the window regulator assembly wear out or break.
* Solution: The entire regulator and motor assembly usually needs to be replaced. It’s a common repair that, like the door lock, can be a DIY project with some mechanical skill.
Flickering or Dimming Dashboard Lights
Instrument cluster or other interior lights may flicker or appear dim.
* Causes: A failing battery, alternator, or a poor ground connection.
* Solution: Have your battery and alternator tested. If those are fine, checking and cleaning ground points, especially the one under the dashboard, can often resolve this.
Chassis, Steering, and Suspension Troubles
As the car gets older, wear and tear on suspension components becomes more apparent.
Excessive Tire Wear and Alignment Issues
Some owners find their Civics go through tires quickly or pull to one side.
* Causes: The factory alignment specifications can be too aggressive. Worn front control arm bushings or tie rod ends will also cause poor alignment and tire wear.
Solution: Get a professional alignment. If components are worn, replace the control arms or tie rods before the alignment. Consider a slightly less aggressive alignment setting (like more toe-in) for better tire life.
Noise from the Front Suspension Over Bumps
Clunking or knocking sounds when going over bumps or rough roads.
* Primary Causes: Worn sway bar end links are the #1 suspect. Worn strut mounts or ball joints are also possible.
* Solution: Lift the front of the car and check for play in the sway bar links. They are inexpensive and relatively easy to replace. If the noise persists, inspect the struts and ball joints.
Power Steering Pump Whine
A high-pitched whining noise, especially when turning the wheel at low speeds or when cold.
* Cause: Low power steering fluid or a failing power steering pump. The system uses a special Honda fluid (usually PSF-S).
* Solution: Check the fluid level in the reservoir and top it up with the correct Honda fluid. If the pump is failing, it will need replacement. Ignoring it can lead to complete failure.
Transmission and Drivetrain Concerns
Automatic Transmission Hesitation or “Bump”
A slight delay or harsh shift, often felt between 1st and 2nd gear or when coming to a stop.
* Causes: Old transmission fluid, a failing shift solenoid, or software issues.
* Solution:
1. Perform a drain-and-fill (not a flush) of the automatic transmission fluid using Honda DW-1 fluid. This often improves shift quality significantly.
2. A dealer can check for any available Transmission Control Module (TCM) software updates.
Manual Transmission Grinding into 3rd Gear
A less common but noted issue where shifting into 3rd gear produces a grinding sound.
* Causes: Worn synchronizers inside the transmission or low/old transmission fluid.
* Solution: First, change the manual transmission fluid with genuine Honda MTF. If grinding persists, the transmission may need internal repair, which is costly.
Proactive Maintenance to Avoid Problems
You can prevent or delay many of these 2012 Honda Civic problems with consistent care.
* Follow the Severe Maintenance Schedule: If you do lots of short trips or drive in extreme conditions, this schedule is better for your car.
* Use Genuine Honda Fluids: This is critical for the transmission, power steering, and brake systems. The wrong fluid can cause damage.
* Address Small Issues Quickly: A small exhaust leak can ruin an oxygen sensor. A worn engine mount puts stress on others. Fixing things early is cheaper.
* Keep the Interior Protected: Use a sunshade religiously to protect the dashboard from cracking.
* Listen for New Noises: Investigate any new sound from the suspension, steering, or brakes immediately.
Is the 2012 Honda Civic Still a Good Buy?
Despite these common issues, the 2012 Civic remains a good used car choice for its excellent fuel economy, spacious interior, and overall reliability. The key is to be an informed buyer or owner. Check for a service history, look for dashboard cracks, test all electronics, and listen for suspension noises during a test drive. Budgeting for potential repairs, like engine mounts or a door lock actuator, is a smart move. With proper maintenance, it can provide many more miles of dependable service.
Frequently Asked Questions (FAQ)
What is the most expensive common problem on the 2012 Honda Civic?
A failing catalytic converter or a full dashboard replacement are typically the most costly single-item repairs.
Are there any recalls on the 2012 Honda Civic?
Yes, recalls have included issues with the driver’s airbag inflator (Takata recall), passenger airbag inflator, and a software update for the electronic stability control. Always check the NHTSA website with your VIN to see if any recalls are open on a specific vehicle.
How long do 2012 Honda Civics usually last?
With proper maintenance, reaching 200,000 miles is very achievable. Many owners report their Civics running well beyond that mileage with no major engine or transmission failures.
Is the 2012 Civic better than the 2013?
The 2013 model year recieved a minor refresh with improved interior materials and suspension tuning, addressing some criticisms of the 2012. However, the fundamental mechanicals are very similar, so the common issues are largely the same.
What should I check before buying a used 2012 Civic?
Inspect the dashboard for cracks, test all power locks and windows, check for idle vibration, look for signs of fluid leaks, and ensure the Bluetooth connects properly. Always get a pre-purchase inspection from a trusted mechanic.