2021 Subaru Crosstrek: shudder or vibration when accelerating

Filed Apr 27, 2026 · Engine · OH

The vehicle shuddered violently when turning the ignition, and then failed to start entirely. The mechanic found that the engine coil was severely damaged, no external influence, just that it had become worn out remarkably fast. The vehicle has less than 60,000 miles and just 5 years in service. The repair will end up costing about 1500 with tows included and the vehicle has not gone without maintenance or care.

Filed Feb 9, 2025 · Transmission · VA

I was experiencing a weird binding or lurching in my drive train which made my Subaru feel unstable. I am a mechanic so I investigated these symptoms online and found that a large number of Subaru owners with manual transmissions were experiencing the same issue......a failing viscous coupler was the issue. There were no warning lights or indications prior to failure A failing viscous coupler will not properly engage the front wheels when needed, causing reduced traction in slippery situations, increasing the risk of sliding or spinning out. Uneven power distribution: When a viscous coupler fails, it can lead to uneven power distribution between the front and rear wheels, potentially causing the vehicle to pull or jerk, especially during turns. Sudden engagement: In some cases, a failing viscous coupler might engage too aggressively, causing a sudden jolt or shudder, potentially leading to loss of control. I purchased and replaced this component at my own expense not knowing the magnitude of the issue. This is a definite safety issue that could lead to serious injury or even death. I have the old part in my possession, it failed around 85,000 miles. One of the mechanics in the Subaru forum said he had submitted a report to the federal safety agency but I didn't see anything on your sight. Thank you for your help. Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 8, 2023 · TN

When I make a forward sharp right or left turn, the tires "shudder". It feels like they are skipping or I'm hitting little bumps in the road. Crown Subaru in Chattanooga, TN, told me the center differential was bad, so I would need to replace the transmission for $11,000. I took it to a mechanic for a second opinion who specializes in Subaru repair. They scoped it, fully checked the transmission, bearings...anything they thought it could be and could not find anything wrong with the transmission or bearings. Nothing that could be causing the shuddering. After visiting a few discussion sites, many Subaru owners have this problem and they are told many different things from their dealerships; all ranging from "it's normal on these models" to an exorbitant repair like a new transmission. Note: when Subaru told me I needed to change out the transmission, they did not say for sure that would fix the issue.

Filed Oct 1, 2021 · Transmission · AL

I have been experiencing shuddering/jerking/hesitation in my vehicle since July. The dealership has had it in their service department several times and cannot diagnose the issue. Subaru of America was contacted and gave no resolution to repairing the vehicle. They did not inspect the vehicle, rather gathered the "data" from the dealership. The shuddering/jerking/hesitation happens from a start to stop position and is incredibly dangerous when pulling out into traffic or crossing over lanes in a left hand turn. This malfunction can cause a collision and is a huge safety concern of mine. I do not feel comfortable putting my life at risk driving this vehicle. The dealership has only tested the CVT transmission and ran "data" and cannot seem to tell me what is wrong with the vehicle, though there is clearly an issue, whether it is the CVT transmission or another component of the vehicle. I see several similar complaints on the federal safety agency website for the Crosstrek dating back to 2015. I am confused as to why the manufacturer is not being held responsible for a defect that is so dangerous. Is it going to take someone getting seriously injured or a death before this is investigated? I encourage other Crosstrek owners to come forward and report similar issues you are having to the federal safety agency.

Filed Jul 15, 2021 · Engine, Transmission · DE

SHUDDERING - CVT belt or pulley not working properly? JERKING, HESITATION - Crosstrek will not go when the gas pedal is pressed or hesitates or pauses for a moment after the gas pedal is engaged