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2003 Pontiac Grand Am

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

Body PASSENGER CAR

The 2003 Pontiac Grand Am is a passenger car whose factory service fill calls for 4.5 quarts of 5W-30 API engine oil, situating it within a production era that drew 338 total owner complaints across the model's documented lifespan. That figure places it well below the platform's all-time complaint peak of 909 in 1999 and well above its 1990 low of 56, locating the 2003 model year as a moderate middle-of-the-arc entry rather than a high or low point in the 1990–2005 reliability record. With electrical system issues leading the complaint breakdown and five recalls layered on top, the 2003 Grand Am reads less as a standout trouble case and more as a useful transitional data point for researchers charting the model's later years.

Model year2005 2004 2003 2002 2001 2000 1999 1998 1997

Quick specs

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

Engine oil capacity4.5 qtOEM · verified

Engine oil type5W-30 APIOEM · verified

Lug nut torque100 ft-lbsOEM · verified

Fitment & sizes

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

From the factory this vehicle uses a BCI 75 · 600 CCA battery, OE oil filter 12731175. Note the factory fuel filter and front wiper blades are now discontinued — plan on a superseded or quality aftermarket equivalent, which the part pages below list where known. 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 75 · 600 CCAOEM · verified

Tire sizeP215-60R15OEM · verified

OE service part numbers OEM · verified

Engine oil filter	12731175 alt 25322835
Engine air filter	25161977
Fuel filter	25121293 discontinued
Spark plug	12681664 alt 12681663
Front wiper blades	22711469 discontinued · alt 22711468
Serpentine belt	12588408 alt 12578869
Thermostat	24507563 alt 12622410

Full specifications

Engine, drivetrain, dimensions and economy.

Dimensions & weight NHTSA vPIC

Overall length	186.2 in
Overall width	70.5 in
Overall height	55.1 in
Wheelbase	107.1 in
Curb weight	3049 lb
Track (front / rear)	59.1 / 59.1 in
Weight distribution (front / rear)	65/35

Performance & power Independent road tests

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

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

7.7 sec0–60 mph (tested)quickest 7.70 sec — 1999 GT Sedan

Year	Trim / engine	0–60	¼ mile	HP	Drivetrain
1999	GT Sedan 3.4L V6	7.70 sec	15.90 sec	175 hp	FWD

Service quick specs OEM factory data

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

This engine holds 4.5 qt of 5W-30 API engine oil, DOT 3 brake fluid. Torque lug nuts to 100 ft-lbs, the oil drain plug to 18.0 ft-lbs. Note the cylinder-head bolts finish on a torque angle (torque-to-yield) — they stretch permanently and should be replaced, not reused, during any head service.

Lubricants & capacities

Brake Fluid	DOT 3
Engine Coolant	DEX-COOL OR EQUIVALENT
Engine Oil	5W-30 · API
Engine Oil Capacity	4.5 qt
Engine Oil	5W-30 · API
Engine Oil Capacity	5 qt
Power Steering Fluid	ATF

Engine torques

Intake Manifold to Engine Bolts	7.4 ft-lbs
Exhaust Manifold to Cylinder Head Bolts	9 ft-lbs
Intake Manifold to Engine Bolts	Upper: 18 ft-lbs
Exhaust Manifold to Cylinder Head Bolts	12 ft-lbs
Engine Oil Pan Drain Plug	18.0 ft-lbs
Engine Oil Pan Drain Plug	18.0 ft-lbs
Engine Valve Cover Bolts	7.4 ft-lbs

Chassis torques

Lug Nuts

100 ft-lbs

Ignition

Spark Plug Manufacturer	AC Delco
Spark Plug Gap	0.042 in
Spark Plug Torque	15.0 ft-lbs
Spark Plug Manufacturer	AC Delco
Spark Plug Gap	0.060 in
Spark Plug Torque	11.0 ft-lbs

Battery & A/C

Refrigerant	R134a
Refrigerant Capacity	1.35 lbs
Oil Group	PAG
Oil Type	46
Oil Capacity	5.00 oz
Refrigerant	R134a
Refrigerant Capacity	1.35 lbs
Oil Group	PAG

Service checks

Pressure Test	15 psi
Radiator Cap Pressure Relief	15 psi
Thermostat Opening Temperature	195 °F
Pressure Test	15, Pressure should not exceed 20 psi.
Radiator Cap Pressure Relief	15 psi
Thermostat Opening Temperature	188-206 °F
Fuel Pump Pressure Minimum	60.0 psi
Key ON Engine OFF (KOEO)	50-60.0

Brakes

Brake Application	WITH REAR DISC / WITH STANDARD
Torque Caliper to Bracket	81 ft-lbs / 85 ft-lbs
Torque to Knuckle	85 ft-lbs / 100 ft-lbs
Minimum Pad Thickness	Front: 0.030; Rear: 0.030 specification
Brake Application	WITH REAR DISC / WITH STANDARD
Rotor Max Parallel Variation	0.001 in
Rotor Runout Limit	0.0015 in
Rotor Nominal Thickness From	0.433 in / 1.031 in

Multi-step torque procedures OEM · verified

Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages

74 ft. lbs., step 2: 75

74 ft. lbs

Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages

52 ft. lbs., step 2: 72

52 ft. lbs

Cylinder Head — tightening sequence 2 stages

1	44 ft. lbs.	44 ft. lbs
2	95 degrees.	95 degrees

Cylinder Head — tightening sequence 3 stages

1	22 ft. lbs.	22 ft. lbs
2	155 degrees.	155 degrees
3	26

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the spark plugs every 100,000 mi; coolant at 150,000 mi. The big-interval services (at 150,000 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 mi	Tire & Wheel Assembly (rotate)
Every 30,000 mi	Engine Air Filter Element (replace)
Every 60,000 mi	Accessory Drive Belt (inspect)
Every 100,000 mi	Spark Plug Wires (inspect) · Spark Plugs (replace)
At 150,000 mi	Engine Coolant System (drain, flush & refill)

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 2003 Pontiac Grand Am sits on a clear downward slope in the generation’s complaint trend, with 338 complaints—a sharp decline from the 1999 peak of 909 and lower than the preceding two years. Recalls also eased from a high of 8 in 2000 to 5 in 2003, and federal investigations dropped to zero for the first time since 1991. However, technical service bulletins remained elevated at 474, and the top complaint areas—electrical system (92), exterior lighting (40), and vehicle speed control (29)—signal that certain subsystems continued to generate owner frustration. This pattern suggests that while overall reliability improved markedly after the problematic 1999–2001 period, some electrical and lighting issues persisted. For a used-car buyer, the 2003 Grand Am represents a more dependable choice than earlier model years, provided a pre-purchase inspection specifically targets the electrical and lighting systems.

Open recalls

NHTSA campaigns

474

Service bulletins

Manufacturer communications

ODI investigations

Office of Defects Investigation

338

Owner complaints

28 involved a crash · 6 a fire

NHTSA crash-test rating federal NCAP · out of 5 stars

Rollover★★★★★

Owner complaints by model year NHTSA · this generation & adjacent

’90 ’91 ’92 ’93 ’94 ’95 ’96 ’97 ’98 ’99 ’00 ’01 ’02’03’04 ’05

Owner complaints filed with NHTSA, by component

All 338 complaints on record, top 8 components.

Electrical System92

Exterior Lighting40

Vehicle Speed Control29

Engine & Engine Cooling18

Electrical System,Exterior Lighting13

Visibility11

Air Bags10

Engine9

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 5 campaigns on record for this vehicle.

14V400000Electrical System:IgnitionReported 03/07/2014

This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should… Remedy: GM will notify owners, and dealers will install two key rings and an insert in the key slot or a cover over the key head on all ignition keys, free of charge. The recall began on…

09E012000Exterior LightingReported 07/04/2009

SABERSPORT IS RECALLING 16,270 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE… Remedy: SABERSPORT WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE SAFETY RECALL BEGAN ON MAY 11, 2009. OWNERS MAY CONTACT SABERSPORT AT…

Technical service bulletins NHTSA · verified

Showing 5 of 474 bulletins on record with NHTSA.

Bulletin	Date	Component	Summary
PIP5601C	2025-07-18	Unknown Or Other	This PI communicates the requirement to provide a pico file to receive diagnostic…
PIP5358D	2025-02-19	Unknown Or Other	This Preliminary Information communication provides information to the technician about…
PIP4723J	2024-10-25	Electrical System	This Preliminary Information communicates to the dealer the process for downloading or…
PIT5099H	2024-09-12	Unknown Or Other	This Preliminary Information communication provides information to the technician about…
PIT5099H	2024-09-12	Unknown Or Other	This Preliminary Information communication provides information to the technician about…

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 Grand Am. 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.

Group 75 battery Vehicles taking 4.5 qt Engine oil filter 12731175 Engine air filter 25161977 Fuel filter 25121293 Spark plug 12681664

Reference guides

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

Vehicle recalls & TSBs OBD-II trouble codes Torque specifications Maintenance schedules Fluid capacities & specs

Frequently asked

How much oil does the 2003 Grand Am take?

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

Does the 2003 Grand Am have open recalls?

NHTSA lists 5 recall campaign(s) for this model year. Check your specific vehicle by VIN.