2013 Subaru Impreza powertrain problems

Transmission control valve body malfunction causing loss of power, bucking, slipping, limp mode, or complete failure. Owners report the transmission locks up mid-drive, refuses to shift properly, or enters limp mode. Diagnostic code P2764 (transmission control solenoid fault) is the hallmark. Multiple owners describe the transmission entering a reduced-power state at highway speeds after initial symptoms like bucking or slipping.

When: Occurs between 67,000 and 156,000 miles; some owners report intermittent issues for years before becoming persistent. One owner's transmission failed at 79,106 miles; another at 97,000 miles. Failures reported at various speeds, some while accelerating on highways at 60-65 mph.

Symptoms owners cite: Transmission bucks, thumps, or feels spongy; Vehicle loses power or fails to accelerate above certain speeds; Transmission slips or refuses to shift into gear; Check Engine light, ABS light, Traction Control light, Hill Assist light illuminate simultaneously; AT Oil Temp warning light flashes; Engine RPM spikes; Fuel economy drops sharply; Vehicle enters limp mode with reduced performance; Transmission locks up while driving

Codes mentioned: P2764, P000D, P00700, P000A, P000C, P0021

Repairs/costs cited: Subaru dealership diagnosis: valve body replacement (~$2,500), transmission control valve controller replacement (~$1,700), or full transmission replacement (quoted at $7,902.88 to $8,000). One owner reports dealer replaced parts but issue recurred within weeks. Another owner found excessive metal buildup in transmission pan six months after a prior CVT service. Owners report repair attempts that fail to resolve the problem, with symptoms returning after short periods.

Recalls/TSBs owners mention: Subaru issued an extended 100,000-mile warranty on transmission and drivetrain (some sources cite 10-year/100,000-mile coverage for newer vehicles). However, owners report this warranty was not communicated proactively and many vehicles fall outside it by mileage or age. One owner was denied coverage because the vehicle was in its 11th year despite having only 67,000 miles. Subaru also issued a service bulletin acknowledging the issue. Owners allege Subaru deliberately allows warranty periods to expire before the vehicle fails, shifting costs to consumers.

Engine burns or leaks abnormal amounts of oil between scheduled changes. Owners report adding oil frequently and observing blue smoke from the exhaust on startup. In one case, oil consumption was so severe that the engine became oil-starved despite repeated top-ups, resulting in timing-chain failure and complete engine replacement.

When: Begins early in ownership; one owner reports oil light coming on at only 1,500 miles after an oil change. Problems escalate over months and years of ownership.

Symptoms owners cite: Oil warning light illuminates between service intervals; Blue smoke from exhaust on cold startup; Need to add oil frequently between oil changes; Timing chain jumps due to oil starvation; Engine failure from lack of lubrication

Repairs/costs cited: Subaru dealer response was dismissive: one service department told the owner to 'just keep adding oil' and attributed blue smoke to normal Subaru behavior. Short block replacement was performed in one case but did not resolve the problem. Another case escalated to complete engine replacement due to oil starvation. Costs not explicitly stated but engine replacement is a major repair (thousands of dollars).

Recalls/TSBs owners mention: Extended 100,000-mile warranty covers oil consumption issues. However, warranty was not communicated proactively. Dealer service departments attributed the issue to normal operation rather than defect, delaying proper diagnosis.

Spot welds on the firewall that anchor the clutch assembly crack or snap off, allowing the firewall to move and the clutch pedal to become spongy or unresponsive. This affects the clutch's ability to fully engage and disengage the transmission. Owners report the firewall moves up to 3 inches when the clutch or brakes are engaged.

When: Can manifest as early as 20,000 miles; some owners report gradual onset over years with increasing noise and pedal deterioration before catastrophic failure.

Symptoms owners cite: Loud popping or cracking noise from clutch pedal area; Clutch pedal feels spongy or soft; Squeaking or creaking noise outside vehicle when clutch is depressed; Difficulty shifting into gear or occasional failure to engage gear; Firewall visibly moves when pedal is depressed; Throttle bearing warped

Repairs/costs cited: Repair requires welding the firewall or replacing the clutch assembly. One owner received an estimate of $1,750 for repair. Labor estimates range from 3–4 hours. In one case, the entire transmission had to be removed to access and replace a throttle bearing that had warped from the stress of the defective firewall welds.

Recalls/TSBs owners mention: Subaru offered partial reimbursement in one case ($750 of a $1,750 repair bill), but refused full coverage despite acknowledging the issue. No formal recall has been issued, despite multiple owners reporting it as a known manufacturing defect affecting large numbers of third-gen WRX and Impreza models. Owners cite pending class-action lawsuits indicating Subaru knew of the defect.

Oil control valves on the front of the engine fail and leak oil onto the main wiring harness, causing electrical shorts, starting failures, and loss of engine function during operation. The resulting electrical damage cascades to multiple vehicle systems.

When: No specific mileage provided; owner notes a service bulletin exists, suggesting this is a known issue.

Symptoms owners cite: Oil leaks from front of engine onto main wiring harness; Electrical shorts in wiring; Lighting failures; Engine fails to start; Engine loses function while in use; Battery failure from short circuit

Repairs/costs cited: No repair cost or method specified by owner; however, the scope of damage (wiring harness, electrical shorts, battery) suggests extensive and expensive repair.

Recalls/TSBs owners mention: Subaru issued a service bulletin acknowledging the issue, but no recall has been issued. Owner states there is no evidence of formal investigation.

Intermittent or persistent faults in the transmission control module and related sensors (possibly the transmission control valve module) cause multiple warning lights to illuminate without clear resolution. The issue may be firmware-related.

When: Intermittent issues lasting 3+ years in one case; recently became consistent. Issues can persist even after repair attempts.

Symptoms owners cite: Check Engine light, ABS light, Traction Control light, Hill Assist light illuminate; AT Oil Temp light flashes; Symptoms trigger after 1-2 miles of driving; Multiple warning lights on simultaneously; Brake/stability systems disabled

Codes mentioned: P2764, P000D, P000A, P000C, P0021, C1422

Repairs/costs cited: Dealership service departments have been unable to duplicate or locate the malfunction for extended periods. One owner reports repairs were attempted multiple times (parts replaced, software updates claimed) but the Check Engine light returned within minutes or hours of leaving the service department. Repair costs quoted at $729–$1,700 per visit; multiple visits often unsuccessful.

Recalls/TSBs owners mention: Extended warranty covers some cases, but owners report warranty denials due to mileage or age limits. Software updates have been suggested but do not appear to resolve the underlying issue. One owner reports being told the issue is 'software-related' repeatedly until the 12-month parts warranty expired.

Complete transmission failure resulting in sudden loss of power while driving, with the vehicle unable to move forward despite engine running. No warning or prior symptoms in some cases.

When: One case at 79,106 miles; another vehicle abruptly stopped while traveling normally with no prior indication.

Symptoms owners cite: Abrupt loss of power while driving; Vehicle stops completely or moves forward with no response to accelerator; Engine continues running but transmission does not engage

Repairs/costs cited: Full transmission replacement required in cases where failure occurred. Costs not specified for these specific failures but transmission replacement is estimated at $7,900–$8,000 based on other complaints.

Recalls/TSBs owners mention: Extended warranty may cover some failures if within mileage/age limits. No recall issued.

Shift lever locks in Park position and refuses to disengage; multiple sensor faults (Traction Control, Emergency Brake, Hill Assist) illuminate simultaneously, preventing the car from starting or shutting off properly.

When: Occurs intermittently in parking lots, driveways, and when attempting to shift gears during driving.

Symptoms owners cite: Shift level gear control locks when car is in Park with foot on brake; Traction Control, Emergency Brake, and Hill Assist sensor lights all illuminate; Car will not turn on or off completely when sensors are active; Gear lock persists until brake is held for extended period

Repairs/costs cited: No repair details provided by owner.