Why Your 2020 Subaru WRX Is Pulling (And How to Stop It)

How to Fix Pulling

If your 2020 Subaru WRX is pulling to one side, especially in challenging conditions like snow or during hard driving, you're not alone. This handling quirk is a common topic among owners who push their cars. The issue often stems from a combination of factors related to tires, suspension, and brake components, all of which are critical for the car's renowned all-wheel-drive performance. As one owner, SUBUWUH, confidently stated about winter driving: "Lowered about an inch, ain’t nothing stopping me." (source) This highlights how modifications and component choices directly influence the vehicle's traction and stability, which are key to preventing unwanted pulling.

Symptoms

Owners describe the sensation of pulling in various scenarios, most notably when traction is compromised. A common report is the vehicle feeling unsettled or wanting to change direction unexpectedly when accelerating or cornering on snow or ice. This can feel like a tug at the steering wheel or the rear end feeling light, which is a form of oversteer. The car's sophisticated traction control system will often intervene with a flashing light on the dash, cutting power to regain stability, which is a clear electronic symptom of the wheels losing grip.

The symptoms are heavily dependent on your tire and wheel setup. Owners running aggressive summer tires in cold conditions report a complete lack of grip, making the car feel unpredictable and prone to sliding. Conversely, those with proper all-season or winter tires report far more confidence. As DueMolasses9571 shared from experience: "Ive lived in the Midwest my whole life where it snows big just about every year throughout the winter. Ive got some year or so old general gmax A/S and it drove great!" (source) This stark contrast shows that pulling or instability is often a symptom of inappropriate equipment for the conditions.

Pulling can also manifest under hard braking. If brake components are unevenly worn, sticking, or if there's an issue with the brake hydraulic system, the car will consistently pull to one side when the brakes are applied. This is a more mechanical and consistent pull compared to the traction-related pulling that occurs during acceleration. Furthermore, aftermarket modifications, particularly suspension lowering and large brake kits, can introduce new geometry that affects alignment and clearance, leading to handling quirks that weren't present from the factory.

Most Likely Cause

Based on owner discussions, the most likely cause of pulling in a 2020 Subaru WRX is an improper tire and wheel setup for the driving conditions, compounded by suspension modifications that affect alignment geometry. The factory-tuned suspension and symmetrical all-wheel-drive system are designed for a specific balance. When owners change wheel offset, width, or lower the suspension, they alter the scrub radius and camber curves. This can make the car more sensitive to road crown and cause it to follow grooves or pull under acceleration and braking.

The data shows owners are acutely aware of how tires dictate behavior. Summer performance tires become hard and slick in cold weather, offering minimal grip and causing the car to slide or "hydroplane" on even light snow. This lack of traction forces the stability control system to work overtime and can create a feeling of the car being pulled off its intended line. As one owner vented about other drivers' poor choices: "Well when some sackless mouth breather with bald tires is going 40 mph on the highway in the left lane It makes me want to weld on a push bar and pit them into next year" (source) This emphasizes that tire condition is a primary safety and handling factor.

Brake components are the other critical cause identified. Upgrading to larger brake kits, like the CTS-V Brembo upgrade popular in the community, can lead to fitment issues. If a caliper is even slightly dragging or if the pad wear is uneven due to a sticking slide pin, it creates rotational drag on that wheel, causing a pull. Owner PatrickJamesYu directly questioned this: "Does anyone know if the CTSV BBK upgrade fits these wheels in 18x9.5 +40 and my RPF1's in 18x9.5 +38 without wheel spacers?" (source) Fitment issues can lead to contact or improper caliper alignment, directly causing pulling.

How to Diagnose

Diagnosing a pull requires a systematic approach to isolate whether it's tire, alignment, or brake related. First, note when the pull occurs: during acceleration, braking, or at a constant speed? A pull during braking points directly to the brake system. A constant-speed pull on a flat road suggests alignment or tire issues. A pull during acceleration, especially in low-traction conditions, points to tires or differential operation.

For Tire & Traction Diagnosis: Start with a simple visual and tactile inspection. Check all four tires for matching brand, model, and, critically, similar tread depth. A difference of more than 2/32nds of an inch between tires on the same axle can cause a pull. Inflate all tires to the recommended cold pressure (found on the driver's door jamb). For winter symptoms, assess your tire type. Are they summer, all-season, or dedicated winter tires? Summer tires below 45°F are a guaranteed cause of traction loss and instability.

For Brake System Diagnosis: After a drive, carefully feel each wheel center (not the brake rotor). A dragging brake will make that wheel hub significantly hotter than the others. Jack up the vehicle and spin each front wheel by hand. They should spin freely with only slight drag from the brake pads. Any grinding or significant resistance indicates a stuck caliper or binding slide pins. Listen for any scraping sounds that might indicate a bent dust shield or a wheel making contact with a large brake caliper.

For Alignment/Suspension Diagnosis: Look for obvious signs of damage: bent control arms, damaged struts, or loose components. While a professional alignment check is best, you can do a basic check. On a level surface, measure the distance from the center of the front wheel hub to the rear wheel hub on both sides. They should be nearly identical. Significant differences could indicate a bent component. Also, check for uneven tire wear patterns like excessive inner or outer shoulder wear, which is a telltale sign of incorrect camber or toe.

Step-by-Step Fix

Step 1: Address the Tires. This is your first and most impactful fix. If you experience pulling in cold or snowy weather, you must install appropriate tires. For winter, dedicated snow tires like Blizzaks are the gold standard. For year-round use in moderate climates, high-performance all-season tires like the General G-MAX AS mentioned by an owner are a good compromise. Ensure all four tires are the same brand, model, size, and have within 2/32nds of tread depth of each other. As one owner shared: "Ive got some year or so old general gmax A/S and it drove great!" This simple change resolves the vast majority of traction-related pulling complaints.

Step 2: Get a Professional Alignment. After confirming your tires are correct, take the vehicle to a reputable shop for a four-wheel alignment. This is especially critical if you have lowered the suspension. Inform the technician of any modifications. They will set the camber, caster, and toe to factory or a modified performance spec. Proper alignment ensures the car tracks straight and tires wear evenly. Do not rely on "toe-and-go" front-end only alignments; the WRX's multi-link rear suspension must be adjusted as well.

Step 3: Inspect and Service Brakes. For a braking-related pull, you need to service the calipers. Safely jack up the vehicle, support it on jack stands, and remove the wheels. Inspect the brake pads for even wear. If one pad is significantly more worn than its counterpart on the same caliper, the slide pins are likely sticking. Remove the caliper, clean the slide pins and their bores with brake cleaner, and lubricate them with high-temperature silicone brake grease. Reassemble and test. For aftermarket big brake kits (BBK), verify there is no contact between the caliper and wheel. As owner PatrickJamesYu inquired about fitment, this is a crucial step. Test fit the wheel without the spacer; if there's any contact, the required spacer size must be used.

Step 4: Check Wheel Bearings and Suspension. While the car is jacked up, check for wheel bearing play. Grab the tire at the 12 and 6 o'clock positions and try to rock it. Any noticeable clunk or movement indicates a worn bearing that needs replacement. Visually inspect all suspension bushings and ball joints for cracking, tearing, or excessive play.

Step 5: Road Test and Traction Control Familiarization. After completing the fixes, perform a careful road test. Find a safe, open, and low-traction area (like an empty, snow-covered parking lot) to understand how the car behaves. Practice controlled slides and feel how the Vehicle Dynamics Control (VDC) system intervenes. Learning the car's limits and electronic aids will help you distinguish between normal stability control intervention and an actual mechanical pull. The confidence comes from proper setup and practice, as SUBUWUH noted: "I feel bad for those who don’t get to experience ripping it up in the snow." (source)

Parts and Tools Needed

• Tires: A matched set of four. For winter: Bridgestone Blizzak WS90, Michelin X-Ice Snow. For all-season: Michelin Pilot Sport All Season 4, Continental ExtremeContact DWS06+, General G-MAX AS (as cited by owner).
• Alignment: Service performed at a shop. No parts needed unless adjustable control arms or camber bolts are required for modified vehicles.
• Brake Service Kit: Can include brake cleaner, high-temperature silicone brake grease, brake caliper slide pin boot kits (often Subaru part# 26296AG000), and new brake pads if worn (OEM or aftermarket like Hawk HPS, EBC Redstuff).
• Big Brake Kit (BBK) Spacers: If needed for clearance. Hub-centric spacers of the correct thickness (e.g., 3mm, 5mm, 10mm). Never use non-hub-centric spacers.
• Basic Tools: Floor jack, jack stands, lug wrench, torque wrench, socket set, screwdrivers, piston retraction tool or large C-clamp (for caliper service).

Real Owner Costs

The cost to fix pulling varies wildly based on the root cause and whether you choose DIY or professional service.

• DIY Tire Swap: If you already own winter wheels/tires, the cost is $0 if you swap them yourself. Purchasing a new set of mid-range winter tires and inexpensive steel wheels can cost between $1,200 and $1,800 mounted and balanced.
• Professional Alignment: A standard four-wheel alignment at a specialty shop or dealership typically costs between $100 and $200. Performance shops may charge more for custom alignment specs.
• DIY Brake Service: The cost for materials is low. A can of brake cleaner, a packet of brake grease, and a boot kit might total $30-$50. If pads are needed, add $150-$300 for a quality front set.
• Professional Brake Repair: Having a shop diagnose and repair a sticking caliper can be costly. Caliper rebuild or replacement, plus pad replacement and system flush, can easily range from $400 to $800 per axle.
• Big Brake Kit Upgrade: This is a major investment. A quality used or new CTS-V/Brembo upgrade kit can cost $1,500 to $2,500 for parts alone. Professional installation and custom brake lines can add another $500-$1,000. As one owner lamented about a different costly engine issue: "Now that I have a very expensive paper weight..." (source)—this mindset applies to any major modification gone wrong.

Prevention

The best prevention is mindful modification and proactive maintenance. Always research how suspension changes, like lowering springs or coilovers, will affect your alignment and drivability. Install complementary parts like adjustable control arms or camber bolts to maintain proper geometry. When buying wheels, use fitment guides and community feedback to ensure they clear your brakes without issue.

Stick to a strict seasonal tire routine. Swap to winter tires before temperatures consistently drop below 45°F. This preserves your summer tires and guarantees safety. Perform a brake inspection and lubrication every time you change your tires or at least once a year. This prevents slide pins from seizing. Finally, get an alignment check annually or anytime you hit a significant pothole or curb, or after modifying the suspension. Keeping the chassis in spec is the foundation of predictable handling.

What Owners Say

Real experiences from SUBARU owners:

Owner Experiences

"I feel bad for those who don’t get to experience ripping it up in the snow Lowered about an inch, ain’t nothing stopping me." — SUBUWUH (source)

"Lowered about an inch, ain’t nothing stopping me. Headphone or speakers for a beautiful redline" — SUBUWUH (source)

"So I got NT03+M's for my blob. Does anyone know if the CTSV BBK upgrade fits these wheels in 18x9.5 +40 and my RPF1's in 18x9.5 +38 without wheel spacers?" — PatrickJamesYu (source)

FAQ

Q: Can I drive my WRX with it pulling to one side? A: It depends on the severity. A slight pull due to road crown is normal. However, a strong pull during braking is a serious safety issue and indicates a brake malfunction that must be addressed immediately. Traction-related pulling in snow on summer tires is extremely dangerous, as you have very little control. In this case, you should not drive in those conditions until you have proper tires.

Q: Is pulling a common issue on the 2020 WRX? A: The WRX itself isn't inherently prone to pulling. However, it is extremely common for owners to modify these cars. Pulling frequently arises as a side effect of those modifications—lowered suspension, aggressive wheel offsets, or large brake kits—or from using the incorrect tires for the season. The platform is sensitive to changes from its factory setup.

Q: DIY vs mechanic—what's recommended for fixing a pull? A: Simple causes like seasonal tire swaps are perfect for DIY. Basic brake slide pin service is also very achievable with common tools and careful work. However, diagnosing a subtle alignment issue or performing the actual alignment requires specialized equipment and expertise, so that should be left to a professional. Installing a major component like a big brake kit is also best done by or with guidance from an experienced mechanic unless you are very confident.

Q: Will winter tires completely eliminate pulling in the snow? A: Winter tires will dramatically improve traction and stability, which reduces the feeling of the car being pulled off line by loss of grip. However, if there is an underlying mechanical issue like a sticking brake caliper or bad alignment, that pull will still be present on dry pavement. Winter tires solve the traction problem, not the mechanical problem.

Q: How long does it take to fix a brake-related pull? A: If it's a simple case of cleaning and lubricating sticky caliper slide pins, a DIYer can complete the job on one axle in 2-3 hours, including jacking up the car and removing wheels. If a caliper needs to be replaced or rebuilt, it may take a professional mechanic 1-2 hours per caliper. Always factor in time to properly bleed the brake system afterward.

Q: My car was in a minor accident. Could that cause pulling? A: Absolutely. Even a minor curb hit or fender-bender can bend a tie rod, control arm, or damage a wheel bearing. As owner Timijuana expressed after an incident: "I was such a slicker on keeping the car in such a clean condition. All for some lady to ruin it all bc she can’t pay attention to the fucking road." (source) Any accident should be followed by a thorough suspension and alignment inspection.