Subaru Ascent (2019–2024) — OBD2 Codes, Parts & Maintenance | TroubleAtlas

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Subaru Ascent (2019–2024)
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SUBARU ASCENT (2019–2024) Manual — Codes, Tyres & Parts

Built 2019–2024 · all production years covered on this single page

2.4L H4 Turbo • Gasoline

Subaru Ascent (2019–2024)

© Wikimedia Commons CC BY-SA

5 Common problems View details →
29 OBD2 codes View details →
12 Recalls / TSB View details →
TroubleAtlas Score
An independent value score for the Subaru Ascent (2019–2024) — reliability, safety, cost, parts, upkeep and documentation. Owing nothing to the manufacturer.
Scorecard · each voice 0–10
Reliability
n/a
Safety & recalls
n/a
Repair cost
4.9
Parts & repairability
4.4
Maintenance & durability
n/a
Documentation & support
8.5
★ How we calculate this → Methodology
TROUBLEATLAS · SCOREINDEPENDENT · VERIFIED★★TA5.9/10
Independent · Verified · Never for sale

Every figure on this Subaru Ascent (2019–2024) page is aggregated and cross-checked against more than 6.6 million real workshop operations, NHTSA records and OEM technical sources — and updated continuously. No invented estimates.

The Subaru Ascent (2019–2024) is powered by a 2.4L H4 Turbo engine. Its OEM tyre size is 215/55 R16. Use the sections below for verified fluids, battery, OEM tyres, the maintenance schedule, recommended parts and the most commonly reported OBD2 fault codes for this vehicle.

⚠️ COMMON PROBLEMS
Engine overheatingFREQUENT

Engine temperature over limits — check coolant level, thermostat and radiator.

Related codes: P0217

Oil pressure sensor: low signalFREQUENT

ECU detects insufficient oil pressure — check oil level and sensor.

Related codes: P0522

Insufficient oil pressureFREQUENT

Oil pressure below critical threshold — stop the engine and check immediately.

Related codes: P0524

Engine control module (PCM) faultFREQUENT

Faulty ECU processor — requires specialist workshop diagnosis.

Related codes: P0606

Throttle actuatorFREQUENT

Throttle actuator motor circuit open — loss of throttle response.

Related codes: P2100

🔧 COMMON REPAIRS
🔧
Front brake pads
Difficulty: Easy
0.8h
€56 – €72
🔧
Rear brake pads
Difficulty: Easy
0.9h
€63 – €81
🛢
Engine oil change
Difficulty: Easy
0.3h
€21 – €27
🔧
ABS Module
Difficulty: Medium
2.0h
€140 – €180
💰 AVERAGE INDICATIVE COSTS

Prices may vary by area and workshop.

🔧
Full service
€ 120 – € 200
🛑
Full brake service
€ 180 – € 300
⚡
Spark plug replacement
€ 80 – € 140
📊
Electronic diagnosis
€ 40 – € 70
⏱️ OFFICIAL LABOUR TIMES (OLP)

Standard labour hours from a database of 6.6M+ real shop operations, with an indicative labour-cost estimate for your country.

Brakes8 operations
OperationLabour hours (OLP)Est. labour cost
ABS Module2.0h€ 90–€ 150
ABS Pump2.5h€ 112–€ 187
ABS Tone Ring1.5h€ 67–€ 112
ABS Wheel Speed Sensor - Front0.8h€ 36–€ 60
ABS Wheel Speed Sensor - Rear0.8h€ 36–€ 60
Brake Bleed - All Four1.0h€ 45–€ 75
Brake Booster2.5h€ 112–€ 187
Brake Booster Check Valve0.3h€ 13–€ 22
Cooling8 operations
OperationLabour hours (OLP)Est. labour cost
Coolant Bypass Pipe1.5h€ 67–€ 112
Coolant Flush1.0h€ 45–€ 75
Coolant Reservoir0.5h€ 22–€ 37
Coolant Temperature Sensor0.5h€ 22–€ 37
Cooling Fan Assembly1.0h€ 45–€ 75
Cooling Fan Motor1.5h€ 67–€ 112
Cooling Fan Relay0.3h€ 13–€ 22
Engine Oil Cooler2.0h€ 90–€ 150
Electrical8 operations
OperationLabour hours (OLP)Est. labour cost
Airbag - Driver1.0h€ 45–€ 75
Airbag - Passenger1.5h€ 67–€ 112
Airbag - Side2.0h€ 90–€ 150
Airbag Module/Computer1.0h€ 45–€ 75
Alternator1.5h€ 67–€ 112
Alternator Belt0.5h€ 22–€ 37
Amplifier1.5h€ 67–€ 112
Antenna0.5h€ 22–€ 37
Engine8 operations
OperationLabour hours (OLP)Est. labour cost
Boost Pressure Sensor0.5h€ 22–€ 37
Camshaft Position Sensor1.0h€ 45–€ 75
Camshaft R&R8.0h€ 360–€ 600
Connecting Rod Bearings15.0h€ 675–€ 1125
Crankshaft Position Sensor1.0h€ 45–€ 75
Crankshaft R&R20.0h€ 900–€ 1500
Cylinder Head R&R6.0h€ 270–€ 450
Cylinder Head Resurface8.0h€ 360–€ 600
Exhaust8 operations
OperationLabour hours (OLP)Est. labour cost
Air Injection Check Valve0.8h€ 36–€ 60
Catalytic Converter - California1.5h€ 67–€ 112
Catalytic Converter - Direct Fit1.5h€ 67–€ 112
Catalytic Converter - Universal2.0h€ 90–€ 150
Downpipe2.0h€ 90–€ 150
EGR Cooler3.0h€ 135–€ 225
EGR Tube1.5h€ 67–€ 112
EGR Valve1.0h€ 45–€ 75
Fuel system8 operations
OperationLabour hours (OLP)Est. labour cost
Charcoal Canister1.0h€ 45–€ 75
EVAP Purge Valve0.8h€ 36–€ 60
EVAP Vent Valve0.8h€ 36–€ 60
Fuel Cap0.1h€ 4–€ 7
Fuel Filler Neck1.5h€ 67–€ 112
Fuel Filter0.5h€ 22–€ 37
Fuel Filter - In-Tank2.0h€ 90–€ 150
Fuel Injector - Single1.0h€ 45–€ 75
HVAC8 operations
OperationLabour hours (OLP)Est. labour cost
AC Accumulator1.5h€ 67–€ 112
AC Clutch Coil1.5h€ 67–€ 112
AC Compressor2.5h€ 112–€ 187
AC Compressor Clutch2.0h€ 90–€ 150
AC Compressor Oil Add0.5h€ 22–€ 37
AC Condenser2.5h€ 112–€ 187
AC Evaporator6.0h€ 270–€ 450
AC Expansion Valve (TXV)4.0h€ 180–€ 300
Steering8 operations
OperationLabour hours (OLP)Est. labour cost
Center Link/Drag Link1.5h€ 67–€ 112
Electric Power Steering Module1.5h€ 67–€ 112
Electric Power Steering Motor2.5h€ 112–€ 187
Idler Arm1.0h€ 45–€ 75
Pitman Arm1.2h€ 54–€ 90
Power Steering Fluid Flush0.5h€ 22–€ 37
Power Steering Gear Box3.5h€ 157–€ 262
Power Steering Hose - High Pressure1.0h€ 45–€ 75
Suspension8 operations
OperationLabour hours (OLP)Est. labour cost
Air Line1.0h€ 45–€ 75
Air Spring/Air Bag1.5h€ 67–€ 112
Air Suspension Compressor1.5h€ 67–€ 112
Air Suspension Height Sensor1.0h€ 45–€ 75
Air Suspension Valve Block2.0h€ 90–€ 150
Ball Joint - Lower1.8h€ 81–€ 135
Ball Joint - Upper1.5h€ 67–€ 112
Ball Joints - Upper and Lower3.0h€ 135–€ 225
Transmission8 operations
OperationLabour hours (OLP)Est. labour cost
Neutral Safety Switch1.0h€ 45–€ 75
Overdrive Solenoid2.0h€ 90–€ 150
Shift Cable1.5h€ 67–€ 112
Shift Linkage1.0h€ 45–€ 75
Torque Converter6.9h€ 310–€ 517
Torque Converter Clutch Solenoid6.9h€ 310–€ 517
Transmission Control Module1.0h€ 45–€ 75
Transmission Cooler Lines1.0h€ 45–€ 75
💵 WORKSHOP LABOUR RATES BY COUNTRY

Average independent-workshop hourly labour rates, to estimate repair costs in your country.

🇩🇪Germany€95/h
🇪🇸Spain€55/h
🇫🇷France€75/h
🇮🇹Italy€45/h
🇬🇧UK£80/h
🇺🇸USA$120/h
Reference rate
€45/h
Source: Eurostat 2024
💧 FLUIDS & LUBRICANTS
Brake Fluid
Brake Fluid
DOT 3 Brake Fluid
Replace when moisture content exceeds 3% or every 2-3 years
📋 RECALLS & TSB (12)
NHTSA 21V587000
Fuel System, Gasoline › Delivery › Fuel Pump
Date: 29/07/2021
Subaru of America, Inc. (Subaru) is recalling certain 2019-2020 Ascent, 2018 Forester, 2018-2020 Impreza, Legacy, Outback, 2018-2019 BRZ, WRX, and Toyota 86 vehicles. The low-pressure fuel pump inside the fuel tank may fail.
NHTSA 23V647000
Power Train › Driveline › Driveshaft
Date: 21/09/2023
Subaru of America, Inc. (Subaru) is recalling certain 2023 Outback, Legacy, Ascent, and Impreza vehicles. The center support bolts for the driveshaft may loosen, resulting in the disconnection of the front end of the driveshaft.
NHTSA 20V218000
Fuel System, Gasoline › Delivery › Fuel Pump
Date: 16/04/2020
Subaru of America, Inc. (Subaru) is recalling certain 2019 Impreza, Outback, Legacy, and Ascent vehicles. The low pressure fuel pump may become inoperative.
NHTSA 19V519000
Power Train › Driveline › Driveshaft
Date: 10/07/2019
Subaru of America, Inc. (Subaru) is recalling certain 2019 Ascent vehicles. The center support bolts for the driveshaft may loosen, possibly resulting in the front portion of the driveshaft disconnecting.
NHTSA 21V955000
Power Train › Automatic Transmission › Control Module (Tcm/Pcm/Tecm)
Date: 09/12/2021
Subaru of America, Inc. (Subaru) is recalling certain 2019-2020 Ascent, 2020 Legacy and Outback vehicles. A programming error in the Transmission Control Unit (TCU) may allow the clutch to engage before the drive chain is completely clamped.
NHTSA 21V954000
Steering › Linkages › Tie Rod Assembly
Date: 09/12/2021
Subaru of America, Inc. (Subaru) is recalling certain 2020 Ascent vehicles. Due to an incorrect tapered hole in the housing, the front tie rod ends may not fit properly. The improper fit can result in the tie rods and housings being deformed during assembly and service replacem…
NHTSA 22V907000
Electrical System › Wiring › Interior/Under Dash
Date: 08/12/2022
Subaru of America, Inc. (Subaru) is recalling certain 2019-2022 Ascent vehicles. The ground bolt that secures the ground terminal of the Positive Temperature Coefficient (PTC) heater may have been improperly fastened, which could result in melting of the ground terminal and surr…
NHTSA 23V258000
Tires
Date: 07/04/2023
Subaru of America, Inc. (Subaru) is recalling certain 2023 Ascent vehicles equipped with 20-inch wheels. The internal tire bead may have been damaged during the wheel mounting process.
NHTSA 19V855000
Power Train › Automatic Transmission › Control Module (Tcm/Pcm/Tecm)
Date: 02/12/2019
Subaru of America, Inc. (Subaru) is recalling certain 2019 Ascent vehicles. The transmission hydraulic sensor may inaccurately measure the hydraulic fluid pressure.
NHTSA 19V856000
Engine And Engine Cooling › Exhaust System › Emission Control › Crankcase (Pcv)
Date: 02/12/2019
Subaru of America, Inc. (Subaru) is recalling certain 2019 Crosstrek, Forester, and Ascent vehicles. The aluminum Positive Crankcase Ventilation (PCV) valve can separate, allowing the separated components to enter the engine, resulting in a loss of power while driving.
NHTSA 18V508000
Structure › Body › Roof And Pillars
Date: 02/08/2018
Subaru of America, Inc. (Subaru) is recalling certain 2019 Subaru Ascent vehicles. These vehicles may be missing spot welds on, or around, the B-Pillar, compromising vehicle strength.
NHTSA 23V392000
Suspension › Front › Control Arm › Lower Arm
Date: 01/06/2023
Subaru of America, Inc. (Subaru) is recalling certain 2023 Ascent vehicles. The left or right front lower control arm may have an improperly tightened ball joint castle nut which can result in retention pin failure and separation of the ball joint from the lower control arm.
🔴 DASHBOARD WARNING LIGHTS — UNIVERSAL GUIDE

53 warning lights classified by urgency. Appears on your vehicle? Check the urgency level.

Show all dashboard warning lights
🔴 IMMEDIATE STOP — pull over
Oil Pressure WarningEngine
Engine Temperature WarningCooling
!BRAKE
Brake System WarningBrakes
K
Immobilizer / Key FaultSecurity
🟠 WARNING — check soon
Malfunction Indicator Light (MIL) / Check EngineEngine
Diesel Particulate Filter (DPF)Emissions
+−
Battery / Charging SystemElectrical
Low Fuel WarningFuel
!BRAKE
ABS WarningBrakes
!BRAKE
Brake Pad Wear IndicatorBrakes
!BRAKE
Electronic Parking Brake (EPB)Brakes
!
Power Steering WarningSteering
ESC / Stability Control FaultChassis
Tire Pressure Warning (TPMS)Chassis
Transmission Temperature WarningTransmission
Transmission / Gearbox FaultTransmission
Airbag / SRS WarningActive safety
EGR / Exhaust Gas Recirculation FaultEmissions
Catalytic Converter / Emissions FaultEmissions
AdBlue / DEF Level LowEmissions
Coolant Level LowCooling
Hybrid / EV System WarningHybrid
EV Charge System FaultHybrid
12V Battery (Hybrid/EV Auxiliary)Hybrid
S
Suspension Fault / Air SuspensionSuspension
N
CAN Bus / Network Communication FaultNetwork
Water in Fuel FilterFuel
Diesel Injector FaultFuel
!
Steering Angle Sensor FaultSteering
Turbo / Boost Pressure FaultEngine
Regenerative Braking Fault (Hybrid/EV)Hybrid
🟡 MONITOR
Fuel Cap / Evap SystemEmissions
?
4WD / AWD SystemDrivetrain
L
Bulb Failure WarningLighting
L
Headlight Range / Leveling FaultLighting
Service / Maintenance DueMaintenance
AC
A/C System FaultHvac
Clutch Wear WarningTransmission
A
Cruise Control / ACC FaultADAS
🔵 INFORMATION
Engine Temperature Low (Blue)Cooling
Glow Plug / Diesel PreheatEngine
Traction Control / ESC OffChassis
Seatbelt ReminderActive safety
L
Rear Fog Light IndicatorLighting
A
Lane Departure / LDWS WarningADAS
A
Forward Collision Warning (FCW/AEB)ADAS
A
Blind Spot Monitor FaultADAS
A
Rear Parking Sensor / Camera FaultADAS
Windshield Washer Fluid LowMaintenance
!
Door Open WarningBody
!
Hood / Trunk Open WarningBody
Gear Shift Indicator (Manual)Transmission
Sport / Performance Mode ActiveTransmission
📢 REPORTED COMPLAINTS & PROBLEMS (NHTSA)

977 owner complaints filed with the U.S. National Highway Traffic Safety Administration (NHTSA) for the Subaru Ascent across model years 2019–2024. These are real, verified reports submitted by vehicle owners.

29 crash reports 11 fires 24 injuries
Complaints by model year (most reported first)
Model year 2019431
Model year 2020313
Model year 202196
Model year 202252
Model year 202447
Model year 202338
Most reported components (all years)
Electrical System271
Power Train160
Visibility/Wiper149
Unknown Or Other133
Engine83
Service Brakes72
Sample reports
The windshield cracked with no obvious damage. The crack did not start at a chip. Cracked while not driving and no recent rock hits. (MY 2019)
Rear lift-gate (power tailgate hatch) emits an audible constant tone, and will not open. The car can be in park, off, or driving and will not stop the audible tone and the lift gate remains locked closed. You can not unlock the lift-ga… (MY 2019)
I bought a 2021 Ascent - Touring , lately there was an ever increasing amount of wind noise. It sounded like it was coming from the sunroof, but I couldn't see anything from the inside that looked out of place and there were no signs of… (MY 2021)
Since owning this vehicle, there have been three separate incidents where the windshield has failed after a small rock has struck it while driving on the highway. The first incident caused a significant chip causing a repair. The second… (MY 2019)

Source: NHTSA complaints database (U.S. data.gov). Figures cover production years 2019–2024.

Frequently Asked Questions

Does the Subaru Ascent have any safety recalls?

Yes — 12 official NHTSA recall campaign(s) affect this model, mainly: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM), FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. Check the recalls section for your exact year/VIN.

What does fault code P0003 mean on the Subaru Ascent?

Fuel Volume Regulator Control Circuit Low This code is among the most documented for this model — tap it in the OBD2 section for the full step-by-step guide.

What does fault code P0002 mean on the Subaru Ascent?

Fuel Volume Regulator Control Circuit Range/Performance This code is among the most documented for this model — tap it in the OBD2 section for the full step-by-step guide.

What does fault code P0001 mean on the Subaru Ascent?

Fuel Volume Regulator Control Circuit/Open This code is among the most documented for this model — tap it in the OBD2 section for the full step-by-step guide.

Are engine problems common on the Subaru Ascent?

Yes — 104 of 938 real owner reports filed with NHTSA mention the engine. One owner reported: “We have been dealing with issues with this vehicle since 2024. We had 3 open recalls which we took into the closest dealership to us and things were okay for a few months and then started having issue…” See the owner-reported complaints section below for more.

Are transmission problems common on the Subaru Ascent?

Yes — 128 of 938 real owner reports filed with NHTSA mention the transmission. One owner reported: “Component/System Failed: The vehicle’s CVT transmission and related transmission components. The transmission and associated components have been replaced multiple times by authorized Subaru dealershi…” See the owner-reported complaints section below for more.

Are electrical problems common on the Subaru Ascent?

Yes — 356 of 938 real owner reports filed with NHTSA mention the electrical. One owner reported: “Component/System Failed: The vehicle’s CVT transmission and related transmission components. The transmission and associated components have been replaced multiple times by authorized Subaru dealershi…” See the owner-reported complaints section below for more.

What tyres does the Subaru Ascent (2019–2024) use?

The original OEM tyre size for the Subaru Ascent (2019–2024) is 215/55 R16. Compatible alternative sizes: ["245/50R20", "245/60R18", "265/45R20", "245/45R19", "245/55R19"]. See the Tyres section on this page to compare offers from the main suppliers.

Which OBD2 fault codes are commonly documented for the Subaru Ascent (2019–2024)?

Commonly documented OBD2 codes across many vehicles include: P0420, P0300, P0171. Find the full description, likely causes and estimated repair costs in the OBD2 Codes section on this page.

How often should the Subaru Ascent (2019–2024) be serviced?

Routine maintenance for the Subaru Ascent (2019–2024) typically includes an oil change every 6,000–9,000 miles (10,000–15,000 km), an air filter every 12,000–18,000 miles (20,000–30,000 km) and a brake inspection every 12,000 miles (20,000 km). Check the full plan with specific intervals in the Scheduled Maintenance section on this page.

This spec sheet is updated with data verified from OEM sources and shop databases. If you spot an inaccuracy or have additional data on the Subaru Ascent (2019–2024), let us know — every correction improves quality for all users.

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