ToyotaCorolla2003Overview/toyota/corolla/2003/base/

2003 Toyota Corolla

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2003 Corolla.

Body PASSENGER CARTransmission Automatic 4-spd

The 2003 Toyota Corolla is a passenger car equipped with a 4‑speed automatic transmission and a 5W‑30 API engine that holds 3.9 quarts of oil. It returns an EPA combined rating of 28 mpg, with 25 mpg city and 34 mpg highway. Owner reports show 768 complaints for the 2003 model year, the most frequent being air‑bag issues, and the vehicle was subject to 14 recalls. Across the Corolla’s complaint history from 1990 to 2026, the 2003 total sits well below the peak of 1,533 complaints in 2009 but above the recent low of 11 in 2026, indicating a moderate reliability standing for this generation.

Model year202620252024202320222021202020192003

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Engine oil capacity3.9 qtOEM · verified
Engine oil type5W-30 APIOEM · verified
Lug nut torque76 ft-lbsOEM · verified
EPA fuel economy25/34/28 mpgEPA · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI 35 · 360 CCA battery, OE oil filter 90915YZZN1. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Battery groupBCI 35 · 360 CCAOEM · verified
Tail / brake / turnTURNOEM · verified

OE service part numbers OEM · verified

Engine oil filter90915YZZN1
Engine air filter17801YZZ03
Fuel filter233000A020
Spark plug9008091184
Front wiper blades8521202121 alt 8522202130
Serpentine belt9008091139 alt 900809113483
Thermostat90916A3003 alt 1632562010
Cabin air filter8856802020

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic 4-spd

Dimensions & weight NHTSA vPIC

Overall length178.3 in
Overall width66.9 in
Overall height58.3 in
Wheelbase102.4 in
Curb weight2491 lb
Track (front / rear)57.9 / 57.1 in
Weight distribution (front / rear)61/39

Ratings & economy EPA / vPIC

EPA city / highway / combined25 / 34 / 28 mpg
DrivetrainFront-Wheel Drive
Passenger volume90 cu ft
Cargo volume14 cu ft
Recommended fuelRegular Gasoline

Performance & power Independent road tests

0–60 mph, quarter-mile, horsepower and torque from independent road tests.

Independent road tests for the Corolla of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.

8.0–8.2 sec0–60 mph (tested)quickest 8.00 sec — 2003 S Sedan
YearTrim / engine0–60¼ mileHPDrivetrain
2003S Sedan 1.8L I-48.00 sec16.30 sec130 hpFWD
2003LE Sedan 1.8L I-48.20 sec16.40 sec130 hpFWD
2001S Sedan 1.8L I-48.80 sec16.60 sec125 hpFWD
2005XRS Sedan 1.8L I-47.10 sec15.80 sec170 hpFWD
2005XRS Sedan 1.8L I-47.10 sec15.40 sec170 hpFWD
2005XRS Sedan 1.8L I-47.60 sec16.10 sec170 hpFWD

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine holds 3.9 qt of 5W-30 API engine oil, ATF in the differential. Torque lug nuts to 76 ft-lbs, the oil drain plug to 27.0 ft-lbs. The firing order is 1-3-4-2.

Lubricants & capacities

Differential Gear OilATF
Differential Gear Oil Capacity3 Pints
Engine Oil5W-30 · API
Engine Oil Capacity3.9 qt

Engine torques

Crankshaft Pulley and/or Damper Bolts89 ft-lbs
Engine Oil Pan Drain Plug27.0 ft-lbs

Chassis torques

Lug Nuts76 ft-lbs
Front Wheel Hub159 ft-lbs
Rear Wheel Hub159 ft-lbs

Ignition

Cylinder Firing Order1-3-4-2
Curb Idle Speed (No Load)800 rpm
Curb Idle Speed Variance (No Load)50 rpm
Spark Plug ManufacturerDenso
Spark Plug Gap0.039-0.043 in
Spark Plug Torque13.0 ft-lbs
Ignition Timing8-12, Not adjustable degrees

Battery & A/C

RefrigerantR134a
Refrigerant Capacity1.25-1.38 lbs
Oil GroupPAG
Oil Type46
Oil Capacity4.50 oz
Standard BCI Group Number35
Standard BCI Cranking Performance360 cca

Service checks

Injector Primary Resistance13.4-14.2 na 4WD Wagon ohms
Injector Primary Resistance12-16 na ohms
Engine Compression145-215 psi

Brakes

Brake ApplicationWITH REAR DISC / WITH STANDARD
Torque to Knuckle34 ft-lbs / 76 ft-lbs
Torque Caliper to Bracket79 ft-lbs
Minimum Pad ThicknessFront: 0.039; Rear: 0.039 in
Minimum Shoe Thickness0.039 in
Brake ApplicationWITH REAR DISC / WITH STANDARD
Rotor Runout Limit0.0059 in / 0.002 in
Rotor Nominal Thickness From0.354 in / 0.984 in

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 7,500 mi; spark plugs at 120,000 mi; coolant every 30,000 mi. The big-interval services (every 30,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.

Every 7,500 miEngine Oil (drain & refill) · Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate)
Every 15,000 miAccessory Drive Belt (inspect) · Brake Drum Assembly (inspect) · Brake Line (inspect) · Brake System (inspect) · CV Joint Boot (inspect) · Exhaust System (Complete) (inspect)
Every 22,500 miCabin Air Filter (replace)
Every 30,000 miAir Conditioning Condenser (inspect) · Differential (inspect fluid level) · Engine Air Filter Element (replace) · Engine Coolant System (drain, flush & refill) · Fuel Evaporative Emission Control System Lines (inspect) · Fuel Line (inspect)
At 60,000 miAccessory Drive Belt (inspect)
Every 60,000 miEngine Valves (inspect valve lash)
At 120,000 miSpark Plugs (replace)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

The federal record for the Toyota Corolla shows a significant shift in reliability metrics starting in 2003, following a period of relatively low complaints from 1990 to 2002. The 2003 model year marks a sharp increase in reported issues, with 768 complaints and 14 recalls, compared to only 149 complaints and 5 recalls in 2002. This year saw a surge in Technical Service Bulletins to 157 and recorded 4 investigations, with the primary complaint areas being Air Bags (316), Engine & Engine Cooling (78), Vehicle Speed Control (59), and Power Train (50). The 2003 model serves as the onset of a high-complaint arc that persists through the mid-to-late 2000s, though complaints slightly decreased to 506 in 2004. While the data does not specify the root causes of these issues, the 2003 model also registered 104 crash-related and 9 fire-related complaints. Given that this year represents a dramatic spike in federal complaints and recalls relative to the preceding decade, it is not a recommended year to buy.

14
Open recalls
NHTSA campaigns
157
Service bulletins
Manufacturer communications
4
ODI investigations
Office of Defects Investigation
768
Owner complaints
104 involved a crash · 9 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Rollover★★★★★

Owner complaints filed with NHTSA, by component

All 768 complaints on record, top 8 components.

Air Bags316
Engine & Engine Cooling78
Vehicle Speed Control59
Power Train50
Seat Belts23
Structure21
Visibility20
Service Brakes, Hydraulic18

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 13 campaigns on record for this vehicle.

19V741000Air Bags:Frontal:Passenger Side:Inflator ModuleReported 17/10/2019

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2010-2016 4Runner, 2003-2006 Tundra, 2003-2013 Corolla, 2009-2010 Corolla Matrix, 2004-2005 RAV4, 2002-2007 Sequoia, 2011-2013 Sienna, 2008-2012… Remedy: Toyota will notify owners. Depending on the vehicle model, dealers will replace the front driver inflator, front passenger airbag inflator, the airbag assembly, or the front…

18V883000Air Bags:Frontal:Passenger Side:Inflator ModuleReported 12/12/2018

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2002-2005 Lexus SC and Toyota Sequoia, 2003-2005 Toyota Corolla and Tundra, and 2003-2007 Pontiac Vibe vehicles. These vehicles are equipped with… Remedy: Toyota will notify the Toyota and Lexus owners. General Motors will notify the Pontiac Vibe owners. Depending on the vehicle model, dealers will replace the front passenger air…

Technical service bulletins NHTSA · verified

Showing 5 of 157 bulletins on record with NHTSA.

BulletinDateComponentSummary
T-SB-0035-24 Rev22024-12-06StructureAcid rain results from rainwater or other airborne moisture that become acidic due to…
T-SB-0038-24 Rev22024-12-06StructureTo prevent brake rotor rust from forming during transportation and storage, wheel film…
T-SB-0039-24 Rev22024-12-06StructureThe condition known as acid rain is caused by airborne chemicals or particles in the…
T-SB-0061-23 Rev22024-12-05StructureToyota vehicles are currently protected with RapgardTM protective film designed to…
T-SB-0062-23 Rev22024-12-03StructureVehicles may occasionally be subjected to contamination by airborne iron particles shed…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN
Decode a VIN to confirm the transmission and build data for a specific Corolla. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Reference guides

Cross-vehicle references for the kinds of data on this page.

Frequently asked

How much oil does the 2003 Corolla take?

3.9 qt of 5W-30 API, per the factory manual.

Does the 2003 Corolla have open recalls?

NHTSA lists 14 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the Corolla get?

EPA figures are 25 city / 34 highway / 28 combined mpg.