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.

RPO

Description

AG1

Adjuster Front Seat - Power, Multi-Directional, Driver

AG2

Adjuster Passenger Seat - Power, Multi-Directional

AJ1

Window Tinted - Deep, All Except Windshield and Doors

AJ3

Restraint System - Seat, Inflatable, Driver

AK5

Restraint System - Seat, Inflatable, Driver and Passenger

AR7

Seat - Front Bucket, Standard

AS5

Seat - Front Bucket, Deluxe

AU0

Lock Control, Entry - Remote Entry

AU3

Lock Control - Side Door, Electric

AXP

VIN Identification - Position, Multi-Purpose Vehicle

AXQ

VIN Identification - Position, Bus

A07

Window - Body

A08

Window - Body, Right Side

A12

Window Rear - Door, STA

A13

Window Side Door - Rear, STA

A17

Window Side Body - Swing Out, Left

A18

Window Rear - Door, Swing Out

A19

Window Side Door - Rear, Swing Out

A31

Window - Power Operated, All Doors

BAG

Export

BA0

Ornamentation - Exterior, Door, Nameplate

BA3

Compartment - Stowage, I/P Lower Extension Deluxe

BG5

Covering Floor - Delete

BNC

Parts Package - Body Mount Cushions

B3D

Equipment - School Bus

B30

Covering Floor - Carpet

B31

Covering Floor - Vinyl, Front, Full Width

B32

Covering Front - Floor Mats, Auxiliary

B33

Covering Rear - Floor Mats, Auxiliary

B38

Covering Floor - Vinyl, Front and Rear, Full Width

B46

Trim Equipment - Special Order

C36

Heater - Auxiliary

C42

HVAC System - Heater, Outside Air, Deluxe

C49

Defogger - Rear Window, Electric

C5Z

GVW Rating - 7,200 lbs

C6P

GVW Rating - 8,600 lbs/3 900 kg

C6Y

GVW Rating - 9,600 lbs

C60

HVAC System - Air Conditioner Front, Manual Controls

C69

HVAC System Rear - Air Conditioner

C7A

GVW Rating - 10,000 lbs

C7F

GVW Rating - 14,050 lbs

C7L

GVW Rating - 12,000 lbs

C7N

GVW Rating - 12,300 lbs

C99

Switch - Inflatable Restraint, I/P Module Manual Suppression

DE2

Mirror Outside - Left and Right, Manual Control, Folding, Color

DE5

Mirror Outside - Left and Right, Remote Control, Electric, Heated, Folding, Color

DE7

Mirror Outside - Left and Right, Remote Control, Electric, Heated, Light Sensitive, Manual Folding, Turn Signal Indicator, Color

DF2

Mirror Outside - Left and Right, Wide Load, Folding, Stainless Steel

DF5

Mirror Inside Rearview - Light Sensitive, Compass, Outside Temperature Display

DHC

Mirror Outside - Left and Right, Manual Control, AUX WFOV, Color

DH6

Mirror Inside Front Vanity - Left and Right, Sunshade, Illumination

DT4

Ashtray - Cigarette Lighter

D28

Mirror Outside - Delete

D31

Mirror Inside Rearview - Tilt (Dup with D36)

ENC

HVAC Provisions - Auxiliary Heater Plumbing and Wiring

EVA

Test - DVT, EVAP Emission Requirement

EXP

Export

E24

Door Side - Rear, Hinged

E26

Door Side Rear Left - Hinged

E3T

Handle - Inside, Door Release

FE9

Certification - Emission Federal

GT4

Axle Rear - 3.73 Ratio

GT5

Axle Rear - 4.10 Ratio

GU6

Axle Rear - 3.42 Ratio

G80

Axle Positraction - Limited Slip

JH5

Brake - Hydraulic Power, 4-Wheel Disc, 7,300 lbs

JH6

Brake - Hydraulic Power, 4-Wheel Disc, 9,900 lbs

JH7

Brake - Hydraulic Power, 4-Wheel Disc, 12,300 lbs (Dup with JH9)

JL4

Control - Active Brake

KC4

Cooling System - Engine Oil

KD1

Cooling System - Trans, Oil

KD9

Generator - 145 Amp, Dual

KG3

Generator - 145 Amp

KUP

Throttle Control - Electronic

K05

Heater Engine - Block

K08

Heater - Auxiliary, Fuel Fired

K34

Cruise Control - Automatic, Electronic

K50

Fuel - Fitting, Line Take-Off

K68

Generator - 105 Amp

LLY

Engine - Diesel, 8 Cylinder, 6.6L, DI, V8, Turbo-High, Duramax

LMM

Engine - Diesel, 8 Cylinder, 6.6L, DPI, V8, Duramax

LM7

Engine - Gas, 8 Cylinder, 5.3L, MFI, Iron, GM

LQ4

Engine - Gas, 8 Cylinder, 6.0L, MFI, Iron, GM

LR4

Engine - Gas, 8 Cylinder, 4.8L, MFI, Iron, GM

LU3

Engine - Gas, 6 Cylinder, 4.3L, MFI, V6, 90 Deg

L59

Engine - Flexible Fuel, (Gas/Alc), 8 Cylinder, 5.3L, MFI, V8, GM

MN8

Transmission - Auto 4 Speed, HMD, 4L80-E, Heavy Duty

MTF

Provisions - Fire Extinguisher Mounting

MT1

Transmission - Auto 4 Speed, HMD, 4L80-E

M30

Transmission - Auto 4 Speed, 4L60-E, Electronic

NA1

Emission System GVW - Less Than 8,500 lb

NA4

Emission System GVW - Above 8,500 lb

NB8

Emission Override - California System

NCF

Lock - Child Security Feature - Delete

NC7

Emission Override - Federal System

NC8

Emission System California, ULEV

NE1

Certification - Emission, Geographically Restricted Registration for Vehicles Up to 14,000 lbs GVW (Use 2003 MDL YR)

NE7

Fuel Tank - 227 L, 57 Gal

NF4

Emission System - Clean Fuel Fleet

NF9

Emission System - General, OBD MIL Suppression

NP5

Steering Wheel - Leather Wrapped

NT7

Emission System - Federal, Tier 2

NT8

Emission System - Federal, Tier 2 A

NT9

Emission System - Federal, Tier 2 Phase-Out

NU1

Emission System - California Level 2

NU4

Emission System California - Level 2 Plus

N12

Exhaust System - Rear Exit

N33

Steering Column - Tilt Type

PF4

Wheel - 16 x 7, Aluminum

PF9

Wheel - 16 x 7, Aluminum Cast

PNC

Panel - Trim, Front Doors and Side Rear Door(s) and Rear Doors

PNF

Panel - Trim, Side Rear Door(s) and Rear Doors - Delete

PRP

Sales Package - Commercial Tradesman

PY2

Wheel - 16 x 6.5, Chrome Appearance

P03

Cover, Wheel - VAR 3

R04

Wheel Configuration - Rear, Single

R05

Wheel Configuration - Rear, Dual

R25

Appearance Package - Exterior, Chrome Grille and Painted Bumper

R26

Appearance Package - Exterior, Chrome Grille and Front Bumper

R4U

Tire Brand All - Maxxis

R4W

Tire Brand All - Michelin

TR9

Lamp Group

T62

Lamp System - Daytime Running - Delete

T79

Lamp - Fog, Rear

UA1

Battery - High Capacity, Wet

UB1

Radio - AM/FM Stereo, Seek/Scan, Auto Rev Music Search Cass, CD, Auto Tone, Data System, Clock, ETR

UC2

Speedometer - Instrument, Kilometer and Miles, Kilometer Odometer, Positive Bias

UC6

Radio - AM/FM Stereo, Seek/Scan, RDS, Multiple Compact Disc, Auto Tone Control, Clock, ETR

UD4

Alarm - Vehicle Speed, 120 km/h

UF2

Lamp - Cargo

UF3

Switch - High Idle

UJ1

Indicator - System, Brake Warning

UL5

Radio - Delete

UL8

Frequencies - Saudi Arabian

UM7

Radio - AM/FM Stereo, Seek/Scan, Clock, ETR

UXZ

Radio - Provisions For

UY7

Wiring Harness - Truck Trailer, HD

U05

Horn - Dual

U1C

Radio - AM/FM Stereo, Seek/Scan, CD, Clock, ETR

U19

Speedometer - Instrument, Kilometers and Miles, Kilometer Odometer

U73

Antenna - Fixed, Radio

U74

Antenna - Radio - Delete

VBX

Language Label - Arabic

VC5

Label - Shipping, Except US, US Possessions, or Japan

VC7

Label - Price/Fuel Economy, Guam

VG8

Vehicle - Label, Notice to Buyer

VH6

Bumper Front - Black

VJG

Bumper Rear - Black

VK3

License Plate Front - Front Mounting Package

VK5

Seat - Temporary, for Shipping

VPH

Vehicle Preparation - Overseas Delivery

VP6

Noise Control

VR4

Trailer Hitch - Weight Distributing Platform

VR6

Hook - Tie-Down Shipping

VXS

Vehicle - Complete

VXT

Vehicle - Incomplete

V10

Provision Options - Cold Weather

V14

Cooler - Oil, Transmission, Auxiliary

V22

Grille - Radiator, Chrome

V37

Bumper - Front and Rear, Chrome

V46

Bumper Front - Chrome

V60

Vehicle Statement - Gulf States Organization, Incomplete Vehicle

V73

Vehicle Statement - USA/Canada

V78

Vehicle Statement - Delete

V87

Vehicle Statement - Gulf States Organization

WEN

Plant Code - Wentzville, MO, USA

XHF

Tire Front - LT225/75R16/E BL R/PE ST ALS

XHH

Tire Front - LT245/75R16/E BW R/PE ST TL ALS 120Q

XHP

Tire Front - LT225/75R16/D BL R/PE ST TL ALS

XLP

Tire Front - LT245/75R16/E BW R/PE ST TL ALS 120/116S

XNK

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

XNL

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

X88

Market Brand - Chevrolet

YA2

Door Side - Rear, Sliding

YC6

Convenience Package - Decor Level #6

YF1

Sales Package - Cutaway Upfitter

YF2

Sales Package - Ambulance Uplifter

YF5

Certification - Emission, California

YF7

Sales Package - Recreational Vehicle, Upfitter

YHF

Tire Rear - LT225/75R16/E BL R/PE ST ALS

YHH

Tire Rear - LT245/75R16/E BW R/PE ST TL ALS 120Q

YHP

Tire Rear - LT225/75R16/D BL R/PE ST TL ALS

YLP

Tire Rear - LT245/75R16/E BW R/PE ST TL ALS 120/116S

YNK

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

YNL

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

Y3G

Merchandised Package - Handicapped, Mobility, Personal Use

Y3H

Merchandised Package - Handicapped, Mobility, Paratransit

ZHF

Tire Spare - LT225/75R16/E BL R/PE ST ALS

ZHH

Tire Spare - LT245/75R16/E BW R/PE ST TL ALS 120Q

ZHP

Tire Spare - LT225/75R16/D BL R/PE ST TL ALS

ZLP

Tire Spare - LT245/75R16/E BW R/PE ST TL ALS 120/116S

ZNK

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

ZNL

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

ZP0

Seating Arrangement - Temporary Driver

ZP3

Seating Arrangement - 15 Passenger

ZP8

Seating Arrangement - 8 Passenger

ZQ2

Sales Package - Driver Convenience

ZQ3

Sales Package - Driver Convenience II

ZR7

Appearance Package - Grille and Bumper Chrome

ZW2

Window Package - Rear Doors

ZW3

Window Package - Rear Doors, Side Rear Door

ZW4

Window Package - Right Side, Rear Doors

ZW6

Window Package - Complete Body

ZW9

Body Equipment - Base Body or Chassis

ZX1

Seating Arrangement - Driver Only, High Back

ZX2

Seating Arrangement - Driver and Passenger, High Back

ZX5

Seating Arrangement - 12 Passenger

ZX9

Tire Spare - w/Wheel - Delete

Z4G

Merchandised Package - Mobility Upfit Lowered Floor

Z49

Export - Canadian Modification Mandatory Base Equipment

Z5X

Mirror Provisions - Arabic Language

Z82

Trailer Provisions - Special Equipment, H.D.

Z88

Market Brand - GMC

40P

Wheel Color - White (91)