GM Service Manual Online
For 1990-2009 cars only

The production/process codes provide the description of the Regular Production Options (RPOs). The RPO list is printed on the Service Parts Identification Label. The following is a list of the RPO abbreviations and the description of each:

RPO Table

RPO

Description

AE7

40/20/40 Seat Front Split Driver Includes Easy Entry Feature

AG1

Power Seat - Adjuster- 6Way - Driver

AG2

Power Seat - Adjuster- 6Way - Passenger

AJ1

Windows Deep Tint, All Except W/S & Front Door

AL4

Rear Second Seat (Two Buckets)

AM7

Rear Seat Folding (Not Merchandised)

AN3

Full Feature Front Bucket Seat

ANJ

No Deep Tint - E Marked

AT5

Seat Rear Second, Folding

AU0

Remote Function Actuation - Keyless Entry (Domestic)

AU3

Lock, Power Door, Electric

AU8

Remote Function Actuation, Specific Frequency

AX4

European Seats And Restraints

B30

Floor Covering - Color Keyed, Carpet

B32

Floor Covering - Color Keyed, Rubber/Vinyl,Floor Mats, Throw In, Front Seat

B33

Floor Covering - Color Keyed, Rubber/Vinyl,Floor Mats, Throw In, Rear Seat

B34

Floor Covering - Color Keyed, Rubber/Vinyl, Floor Mats, Throw In, Front Seat

B35

Floor Covering - Color Keyed, Rubber/Vinyl, Floor Mats, Throw In, Rear Seat

B37

Floor Covering - Color Keyed, Rubber/Vinyl, Floor Mats, Throw In, Front & Intermediate Seat

B39

Floor Covering - Reversible Carpeted/Vinyl Cargo Area Mat

B71

Wheel Opening Flares

B74

Wheel Opening Flares, Extra Wide

B85

Molding - Body Side

B96

Wheel Opening Flares

BAG

Parts Package For Overseas Shipping.

BG9

Full Rubber Floor Mat - Color Keyed Embossed

C49

Rear Window Defogger

C5M

6100 # GVWR

C5P

6250 # GVWR

C5Q

6300 # GVWR

C5S

6600 # GVWR

C5U

6800 # GVWR

C52

7200 # GVWR

C60

Front Air Conditioning

C68

Electronic Climate Control

C69

Rear Air Conditioning

C6P

8600 # GVWR

C6U

9000 # GVWR

C6W

9200 # GVWR

C7A

10000 # GVWR

C7E

11000 # GVWR

C7L

12000 # GVWR

C85

Fog Lamp Suppression With Headlamps On

CF5

Sun Roof - Electric, Sliding

CKD

Complete Knock Down - International (Chevrolet Only)

CT1

Country, Belgium

CT2

Country, Austria

CT3

Country, Germany

CT4

Country, Luxembourg

CT5

Country, Netherlands

CT6

Country, Italy

CT7

Country, Denmark

CT8

Country, Portugal

CT9

Country, Spain

CU1

Country, Norway

CU2

Country, Finland

CU3

Country, France

CU4

Country, Sweden

CU7

Country, Kuwait

CU8

Country, Saudi Arabia

CV1

Country, Iceland

CV6

Country, Chile

CW2

Country, Gulf States (Bahraim, Oman, Qman, Uae)

CW4

Country, Caribbean

CW5

Country, Venezuela

CW6

Country, Guam

CW7

Country, Puerto Rico/U.S. Virgin Islands

CZ1

Country, Central America

CZ2

Country, China

CZ3

Country, Russia

D07

Console, Floor Seat Seperator (Extended)

D44

Mirror, OSRV, Class2, Molded-In Black Plastic, Gooseneck Style

D45

Mirror, OSRV, Class2, Chrome, Gooseneck Style (GMM)

D48

Mirror, OSRV, Power Control

D55

Console, Floor, Seat Seperator

DD7

Mirror, ISRV, Electrochromic, Autodimming, Autocal Compass

DE2

Mirror, OSRV, Manual Control

DF2

Mirror, OSRV, Camper Style

DF5

Mirror, ISRV, Electric W/Simulations Compass/Temp/O/S EC CNTL

DG5

Mirror, OSRV, SR West Coast

DH6

Sunshade, Driver And Passenger, Flap Covered Lighted Vanity Mirror, With Extenders (Not Merchandised)

DK6

Console, Overhead - Bucket Seat (Long)

DK7

Console, Overhead - Bench Seat W/O Sunroof (Short)

DL8

Mirror, OSRV, Power Control, Defog

E35

Optional Pickup Box - Steel (6 1/2 Foot) Or (8 Foot)

E62

Sportside Pickup Box (6 1/2 Foot) Steel Inner/Plastic Outer

E63

Fleetside / Wideside Pickup Box (6 1/2 Foot And 8 Foot)

EQ9

Underride Protection Equipment

EXP

Export Processing Option

F60

Provisions-Increased Torsion Bar Rate

FE9

Emissons Requirements - Federal Customer

FRL

Provisions-Increased Spring Rate

FW1

Manual Electric Control, Ride And Handling

FWI

Fort Wayne Assembly

G80

Locking, Rear Axle

GH0

3.54:1 Rear Axle Ratio

GMC

Pontiac East Assembly

GT4

3.73:1 Rear Axle Ratio

GT5

4.10:1 Rear Axle Ratio

GTY

Wide Track Rear Axle

GU4

3.08:1 Rear Axle Ratio

GU6

3.42:1 Rear Axle Ratio

HC4

4.65:1 Rear Axle Ratio

J81

Export Fog Lamp Switch

JAN

Janesville Assembly

JB8

Hydroboost Brakes - Export

JC5

Brake System (6100-7200 # GVWR) 4 Wheel Disc Brakes (Gasoline - Vacuu, Type Booster)

JH6

Brake System (7300-9900 # GVWR) 4 Wheel Disc Brakes

JH7

Brake System (10000-12000 # GVWR)(R05) 4 Wheel Disc

K05

Engine Block Heater

K18

A.I.R. Pump (Air Injection Reactor), (Electric)

K34

Cruise Control, Electronic

K47

Air Cleaner, High Capacity System

K53

Enhanced Fuel Sender - International

K68

Alternator, 105 AMP.

KA6

Rear Seat Cushion And Back Heater For Luxury Utility

KC4

Heavy Duty Engine Oil Cooling

KC6

Provisions - Accommodated Accessory Device

KNP

Cooler - Transmission Oil Cooler- Air-To-Oil

L35

4.3L V6 Gasoline Engine SCPI

LM7

5.3L V8 Gasoline Engine SFI GEN III

LQ4

6.0L V8 Gasoline Engine SFI GEN III

LR4

4.8L V8 Gasoline Engine SFI GEN III

M1F

Power-Take-Off (P.T.O.) Provisions

M30

Transmission - 4 Speed Auto W/ Electric Controls L.D. (Hydra-Matic 4L60-E)

M74

Transmission - Automatic, 5 Speed (H.D.) Allison 1000 Series

MAE

Marketing Area Code Europe

MAU

Marketing Area Code Unregulated

MG5

Transmission - 5 Speed Manual (4.02:1) New Venture Gear

MT1

Transmission - 4 Speed Auto W/Elect Controls H.D. (Hydra - Matic 4L80 - E

MW3

Transmission - 5 Speed Manual (5.61:1) New Venture Gear

N05

Locking Fuel Filler Cap

N12

Rear Exit Tail Pipe

N93

Wheel - New - Aluminum - 17" x 7.5"

NA1

Emissions Systems (At Or Below 8500 # GVWR)

NA4

Emission Systems (Greater Than 8500 # GVWR)

NA7

European Emissions

NB6

Emissions Requirements - California Tier 1

NC1

Emissions Requirements - California Lev

NF2

Emissions Requirements- Federal Tier 1

NG1

Emissions Requirements- Geographically Restricted Regions (California REQTS Outside Of California)

NN8

Emissions Override, Unleaded Fuel, Export

NP1

Transfer Case - (Electric) - Full Range

NP2

Transfer Case- (Manual) - Full Range

NP3

Transfer Case - (AWD)

NP5

Leather Wrapped Steering Wheel

NP8

Transfer Case - (Active) - Push Button Control, 2 Speed

NW7

Traction Control - Electronic

NZZ

Skid Plate Off-Road

OSG

Oshawa Assembly

P03

Bright Hub Caps

P06

Bright Rally Trim Rings W/ Bright Hub Caps

PF4

Wheel - Cast - Aluminum- 16 X 7.0

PF9

Wheel - Cast - Aluminum- 16 X 7.0

PTO

Engine Controls For PTO Application

PY0

Wheel- New - Aluminum - 16 X 6.5

PY2

Wheel- Bright Chrome Appearance- 16 X 6.5

Q4B

6200 # GVWR

QAN

P265/7OR 17 Tire

QBN

LT245/75R16C R/PE ST TBL OOR BW

QBX

LT245/75R16C R/PE ST TBL OOR WOL

QC3

Wheel- New -Theme - Aluminum- 16 X 7

QCC

P255/70R16-109S ALS BW

QE4

Wheel- Aluminum-Spare - 16 X 6.5

QGA

P245/75R16 R/PE ST TL AT 109S BW

QGB

P245/75R16 R/PE ST TL AT 109S WOL

QGC

P265/75R16 R/PEST TL AT 114S BW

QGD

P265/75R16 R/PE ST TL AT 114S WOL

QHP

LT225/75R16D R/PE ST TL ALS BW

QHS

P265/75R16-114S AT Temp (A) BW (Middle East Export Only)

QIW

LT245/75R16E R/PE ST TL OOR BL

QIZ

LT245/75R16E R/PE ST TL ALS BL

QMG

P245/75R16-112S ALS (EL) BW

QMH

P245/75R16 - 1125 ALS (EL) WOL

QMK

P265/70R16-111S AL2 WOL

QNF

P235/75R16-106S ALS BW

QNG

P235/75R16-106S ALS WOL

QNK

P245/75R16-109S ALS BW

QNL

P245/75R16-109S ALS WOL

RO4

Axle - Single, Rear

Ro5

Axle - Dual Rear

T62

Daytime Running Lamp - Delete

T65

Daytime Running Lamps - European

T84

Headlamps - Right Hand Rule Of Road, E Marked (China, Former Soviet Union)

T89

Lamp - Tail and Stop, Export

T90

Lamp - Signal and Marker

T96

Fog Lamps - Front

TP2

Provisions For Dual Batteries, (Not Availabe On V6 Engine)

TR2

Side Repeater Lamp

TR6

Headlamp Leveling Device

TRW

Provisions-Emergency Roof Mounted Lights

TS9

CHMSL Delete

UO1

Roof Marker Lamps

U19

Metric Dominant Cluster, Nornal Bias (Canadian

U68

Trip Computer - Secondary Information Center

UC2

Metric Dominant Cluster, Positive Bias (European)

UD4

Uverspeed Warning Device (Required For Saudi Arabia, Gulf States, And Kuwait)

UG1

Homelink System

UL0

Radio- AM/FM Stereo, Cass. (Euro Compliant)

UL1

Radio- AM/FM Stereo, Seek/Scan, Clock, And ETR. (European Frequency Radio, Base On All Models For European Export, Requires UL2)

UL2

European Frequency, (Required For Europe, And Middle East On All Models With ULO Radio, UM7, UL1 OR UW3. Also Includes Former Soviet Union, RPO CZ)

UL5

Radio - Delete

UM6

Radio- AM/FM Stereo, Seek/Scan, Auto Reverse Cassette, Clock And ETR

UM7

Radio - AM/FM Stereo, Seek/Scan Clock, And ETR (Base On All Models)

UN0

Radio - AM/FM Stereo, Seek/Scan, Compact Disc, Auto Tone Control, Clock, And ETR (Radio Will Not Snap Fit Into I/P - No Attaching Fasteners)

UP0

Radio - AM/FM Stereo, Seek/Scan, Auto Reverse Music Search Cassette, Compact Disc, Auto Tone control, Clock, And ETR (Radio Will Not Snap Fit Into IP- No Attaching Fasteners, CD Will Be Remote Mounted Other Than The IP)

UQ3

Speaker System - Performance, Enhanced Audio

UQ5

Speaker System - Base (Speakers Will Snap-Fit, No Attaching Fasteners)

UQ7

Bose Radio Speaker System (Consists of An 11 Speaker System)

UV8

Provisions For Cellular Phone Ready Wiring Option

UW3

RDS Feature With European Frequency

UY2

Wiring Provisions for Camper / 5th Wheel Trailer

UY7

Trailer Wiring Harness

V10

Cold Climate Package

V43

Bumper - Painted, Rear Step - With Step Pad

V53

Luggage Carrier Roof

V54

Roof Mounted Luggage Carrier

V60

Gulf States Organizations - Vehicle Statement - Incomplete Vehicle

V76

Front Towing Hook

VB3

Bumper- Chrome. Rear Step - Rub Strip & Step Pad

VC0

Noise Label

VC4

Lable Price And Fuel, Puerto Rico/USVI

VC5

Export Shipping Label

VC7

Lable Price And Fuel Economy For Guam

VD1

European Provisions

VF7

Rear Bumper Delete

VG3

Bumper - Chrome Front W/ Upper Fascia

VGC

Paint Etch Preventive Protector Film ( Required For All Vehicles Shipped To Hawaii)

VJ3

Lable, Plate - ECE Approval And VIN

VJ4

Lable, Export Child Seat Location

VPH

Vehicle Prep Overseas

VR4

Trailer Hitch Patform

VR6

Rear Shipping Hooks

VR7

Rear Recovering Towing Hook

VYU

Snow Plow Prep Package

VZ2

Calibration, Speedometer A

W86

Equipement, Disc Equipment For Venezuela (GMV Controlled)

W87

Parts, North American, Venezula Sourced

X88

Cheverolet Conversion

XBN

LT245/75R16C R/PE ST TBL OOR BW - Front

XBX

LT245/75R16C R/PE ST TBL OOR WOL - Front

XCC

P255/70R16-109S ALS BW - Front

XGA

P245/75R16 R/PE ST TL AT 109S BW - Front

XGB

P245/75R16 R/PE ST TL AT 109S WOL - Front

XGL

LT265/75R16 OOR BW - Front

XGC

P265/75R16 R/PE ST TL AT 114S BW - Front

XGD

P265/75R16 R/PE ST TL AT 114S WOL - Front

XHP

LT225/75R16D R/PE ST TL ALS BW - Front

XHS

P265/75R16-114S AT Temp (A) BW - Front

XIW

LT245/75R16E R/PE ST TL OOR BL - Front

XIZ

LT245/75R16E R/PE ST TL ALS BL - Front

XMG

P245/75R16-112S ALS (EL) BW - Front

XMH

P245/75R16-112S ALS (EL) WOL - Front

XMJ

P265/70R16-111S AL2 BW - Front

XMK

P265/70R16-111S AL2 WOL - Front

XNF

P235/75R16-106S ALS BW - Front

XNG

P235/75R16-106S ALS WOL - Front

XNK

P245/75R16-109S ALS BW - Front

XNL

P245/75R16-109S ALS WOL - Front

XYK

LT215/85R16D R/PE ST TL ALS BL - Front

XYL

LT215/85R16D R/PE ST TL OOR BL - Front

XYN

LT235/85R16E R/PE ST TL ALS BL - Front

YB3

Clutch Plate - Delete

YBN

LT245/75R16C R/PE ST TBL OOR BW - Rear

YBX

LT245/75R16C R/PE ST TBL OOR WOL - Rear

YCC

P255/70R16-109S ALS BW - Rear

YE9

Uplevel Decor

YF2

Ambulance Package

YF5

Emissions Requirements- California Customer

YF7

Upfitter Package

YGA

P245/75R16 R/PE ST TL AT 109S BW - Rear

YGB

P245/75R16 R/PE ST TL AT 109S WOL - Rear

YGC

P265/75R16 R/PE ST TL AT 114S BW - Rear

YGD

P265/75R16 R/PE ST TL AT 114S WOL - Rear

YGL

LT265/75R16 OOR BW - Rear

YHP

LT225/75R16D R/PE ST TL ALS BW - Rear

YHS

P265/75R-114S AT Temp (A) BW - Rear

YIW

LT245/75R16E R/PE ST TL OOR BL - Rear

YIZ

LT245/75R16E R/PE ST TL ALS BL - Rear

YMG

P245/75R16-112S ALS (EL) BW - Rear

YMH

P245/75R16-112S ALS (EL) WOL - Rear

YMJ

P265/70R16-111S AL2 BW - Rear

YMK

P265/70R16-111S AL2 WOL - Rear

YNF

P235/75R16-106S ALS BW - Rear

YNG

P235/75R16-106S ALS WOL - Rear

YNK

P245/75R16-109S ALS BW - Rear

YNL

P245/75R16-109S ALS WOL - Rear

YYK

LT215/85R16D R/PE ST TL ALS BL - Rear

YYL

LT215/85R16D R/PE ST TL OOR BL - Rear

YYN

LT235/85R16E R/PE ST TL ALS BL - Rear

Z49

canadian Equipment

Z55

Continously Variable Real Time Damping (CVRTD)

Z5X

Mirror Provisions Arabic Language

Z71

Off Road Suspension

Z82

Trailering Provisions HD (Not Available For Export To Europe, China, And FSU)

Z83

Solid Smooth Ride Suspension

Z85

Handling / Trailering Suspension

Z88

GMC Conversion (Available On All Domestic Models, Required For The Middle East)

ZBN

LT245/75R16C R/PE ST TBL OOR BW - Spare

ZBX

LT245/75R16C R/PE ST TBL OOR WOL - Spare

ZCC

P255/70R16-109S ALS BW - Spare

ZE5

ID Trim Level Base (Available For Export)

ZGA

P245/75R16 R/PE ST TL AT 109S BW - Spare

ZGB

P245/75R16 R/PE ST TL AT 109S WOL - Spare

ZGC

P265/75R16 R/PE ST TL AT 114S BW - Spare

ZGD

P265/75R16 R/PE ST TL AT 114S WOL - Spare

ZGL

LT 265/75R16 OOR BW - Spare

ZHP

LT225/75R16D R/PE ST TL ALS BW - Spare

ZHS

P265/75R16-114S AT Temp (A) BW - Spare

ZIW

LT245/75R16E R/PE ST TL OOR BL - Spare

ZIZ

LT245/75R16E R/PE ST TL ALS BL - Spare

ZM9

Features Enhancement Package

ZMG

P245/75R16-112S ALS (EL) BW - Spare

ZMH

P245/75R16-112S ALS (EL) WOL - Spare

ZMJ

P265/70R16-111S AL2 BW - Spare

ZMK

P265/70R16-11S AL2 WOL - Spare

ZNF

P235/75R16-106S ALS BW - Spare

ZNG

P235/75R16-106S ALS WOL - Spare

ZNK

P245/75R16-109S ALS BW - Spare

ZNL

P245/75R16-109S ALS WOL - Spare

ZW9

Base Body or Chassie

ZX3

Adjustable Electronic (Selectable) Suspension

ZY1

Solid Paint Scheme

ZY2

Two-Tone Paint Scheme (RequiresYE9)

ZYK

LT215/85R16D R/PE ST TL ALS BL - Spare

ZYL

LT215/85R16D R/PE ST TL OOR BL - Spare

ZYN

LT235/85R16E R/PE ST TL ALS BL - Spare