RPO Code List
The following table provides the description of the Regular Production Option (RPO) codes that are available on the vehicle. The vehicle's RPO list is printed on the Service Parts Identification Label.
| RPO | Description |
|---|---|
| 1MP | COMMUNICATION EQUIP-MOBILE REMOTE ENGINE START SMART PHONE APPLICATION |
| 1SB | PACKAGE-OPTION 02 |
| 1SC | PACKAGE-OPTION 03 |
| 1SD | PACKAGE-OPTION 04 |
| 1SF | PACKAGE-OPTION 06 |
| 1SG | PACKAGE-OPTION 07 |
| 1SL | PACKAGE-OPTION 11 |
| 1SU | PACKAGE-OPTION 19 |
| 1SV | PACKAGE-OPTION 20 |
| 4AA | INTERIOR TRIM-JET BLACK |
| 4G7 | WHEEL SPARE-17 X 4.0, B, STEEL, DESIGN 1 |
| 4JO | INTERIOR TRIM-JET BLACK/WHISPER BEIGE INTERIOR |
| 5EA | EQUIPMENT-PACKAGE, CO2 - REDUCTION |
| 5KE | ACCESSORY-MOLDING KIT - EXTERIOR |
| 5LE | ACCESSORY-GARAGE DOOR OPENER |
| 65C | LABEL, WARNING-CALIFORNIA, PROP 65 COMPLIANT |
| 6Y7 | ACCESSORY-DRIVING VIDEO RECORDER - DESIGN 1 |
| 6Y8 | ACCESSORY-DRIVING VIDEO RECORDER - DESIGN 2 |
| 6Y9 | ACCESSORY-DRIVING VIDEO RECORDER - DESIGN 3 |
| A2V | ADJUSTER DRIVER SEAT-6WAY, DISCOUNT MAN RECLINE, MAN FORE/AFT, MAN HEIGHT |
| A2W | ADJUSTER DRIVER SEAT-6WAY, PWR RECLINE, PWR FORE/AFT, PWR HEIGHT |
| A2X | ADJUSTER DRIVER SEAT-8WAY, PWR RECLINE, PWR FORE/AFT, PWR HEIGHT, PWR TILT |
| A45 | MEMORY-SEAT ADJUSTER, MIRROR, POWER, DRIVER, PERSONALIZATION |
| A51 | SEAT-FRT BKT, CUSTOM |
| A64 | SEAT RR-SPLIT, FOLDING, 40/60 |
| A69 | RESTRAINT-SEAT BELT TENSIONER, FRT, VAR. 2 |
| A7E | ADJUSTER PASS ST-4WAY, DISCOUNT MAN RECLINE, MAN FORE/AFT |
| A7H | ADJUSTER PASS ST-6WAY, DISCOUNT MAN RECLINE, MAN FORE/AFT, MAN HEIGHT |
| A7K | ADJUSTER PASS ST-8WAY, PWR RECLINE, PWR FORE/AFT, PWR HEIGHT, PWR TILT |
| AEF | WINDOW REG PASS DR-POWER OPERATED, EXPRESS UP/DOWN (DO NOT USE NEXT NEW MAJOR) |
| AEQ | WINDOW REG REAR DR-POWER OPERATED, EXPRESS DOWN (DO NOT USE NEXT NEW MAJOR) |
| AER | WINDOW REG REAR DR-POWER OPERATED, EXPRESS UP/DOWN (DO NOT USE NEXT NEW MAJOR) |
| AF6 | CONTROL-SEAT, MASSAGE, DRIVER |
| AJC | RESTRAINT-HEAD, FRT SEAT, UP/DOWN ADJUSTMENT |
| AJW | WINDOW STYLE-LAMINATED |
| AKO | WINDOW TYPE-PRIVACY |
| AL0 | SENSOR INDICATOR-INFLATABLE RESTRAINT, FRT PASS/CHILD PRESENCE DETECTOR |
| ASV | EQUIPMENT-SENSOR AIR MOISTURE & W/S TEMP |
| ATH | LOCK CONTROL, ENTRY-REMOTE ENTRY, EXTENDED RANGE, PASSIVE ENTRY, ALL DOORS |
| AVK | LUMBAR DRIVER-SEAT, POWER, 4 WAY |
| AVU | LUMBAR PASSENGER-SEAT, POWER, 4-WAY |
| AXG | WINDOW REG DRVR DR-POWER OPERATED, EXPRESS UP/DOWN (DO NOT USE NEXT NEW MAJOR) |
| AXP | VEHICLE TYPE-MULTI-PURPOSE PASSENGER VEHICLE |
| AY0 | RESTRAINT SYSTEM-SEAT, INFLATABLE, DRIVER & PASS FRT, SEAT SIDE, ROOF SIDE |
| AYX | RESTRAINT SYSTEM-SEAT, INFLATABLE, DRIVER & PASS FRT, FRT SEAT SIDE, ROOF SIDE, KNEE |
| B39 | COVERING-FLOOR CARPET, LOAD FLOOR |
| B54 | COVERING-FLOOR MAT, FRT & RR, DELUXE (DNU NEXT NEW MAJOR) |
| BB4 | COVERING-FLOOR MAT, FRT & RR, PREMIUM (DNU NEXT NEW MAJOR) |
| BGY | PLANT CODE-DONGYUE NORTH, YANTAI, CHINA |
| BTM | SWITCH-START, KEYLESS |
| BTT | ALARM-REMOTE PANIC |
| BTV | REMOTE START-VEHICLE |
| C25 | WIPER SYS RR WINDOW-INTERMITTENT |
| C3U | ROOF-SUN, GLASS, SLIDING, ELEC, TRANSPARENT GLASS FIXED (DO NOT USE NEXT NEW MAJOR) |
| C4P | HVAC SYSTEM-AIR CONDITIONER FRT, SEMIAUTOMATIC, ELECTRONIC CONTROLS |
| C4Q | GVW RATING-2300 KG (5070 LBS) |
| C4W | GVW RATING-2223 KG (4900 LBS) |
| C59 | VENT-AIR, CONSOLE, RR |
| C93 | LAMP-INTR, AMBIENT |
| CAV | ACCESSORY-TRAY - TRUNK/CARGO AREA |
| CE1 | WIPER SYS WINDSHIELD-PULSE, MOISTURE SENSITIVE |
| CJ2 | HVAC SYSTEM-AIR CONDITIONER FRT, AUTO TEMP CONT, AUX TEMP CONT |
| CKH | GVW RATING-2250 KG (4960 LBS) |
| CKK | GVW RATING-2350 KG (5180 LBS) |
| CNG | PLATE-DOOR SILL COVER, BUICK |
| CV3 | COUNTRY-MEXICO |
| CWA | WASHER-CAMERA, REAR |
| CWN | SALES PACKAGE-TECHNOLOGY II |
| CXH | SALES PACKAGE-INTERIOR LEATHER PACKAGE |
| CZ2 | COUNTRY-CHINA |
| D31 | MIRROR I/S R/V-TILT |
| D75 | HANDLE O/S DOOR-BODY COLOR |
| D7A | HANDLE O/S DOOR-BODY COLOR, CHROME STRIP |
| DA5 | ARM REST-RR SEAT, CENTER |
| DD8 | MIRROR I/S R/V-LT SENSITIVE |
| DR2 | MIRROR O/S-LH & RH, REMOTE CONTROL, ELECTRIC, HEATED, LT SENSITIVE, MANUAL FOLDING, COLOR |
| DR3 | MIRROR O/S-LH & RH, REMOTE CONTROL, ELECTRIC, HEATED, MEMORY, LT SENSITIVE, MANUAL FOLDING, COLOR |
| DR5 | MIRROR O/S-LH & RH, REMOTE CONTROL, ELECTRIC, HEATED, MANUAL FOLDING, COLOR |
| DRZ | MIRROR I/S R/V-LT SENSITIVE, FULL VIDEO DISPLAY |
| DX1 | MIRROR O/S-LH & RH, RC, ELEC, HEAT, AUX WFOV/DRVR, PWRFOLD, CNVX/PASS, TURN SIG IND, LT SENS |
| E94 | COVER-RR COMPT, LOADING EDGE, STEEL |
| EA4 | SALES PACKAGE-AWARENESS |
| EBI | POCKET-FRONT SEAT BACK |
| EF7 | COUNTRY-UNITED STATES OF AMERICA (USA) |
| ENL | ENG CONTROL DISABLE-STOP/START, NON-LATCHING |
| EPH | TRANS RANGE SEL SYS-ELECTRONIC |
| EPM | MODEL CONVERSION-ALL WHEEL DRIVE |
| F45 | CHASSIS-CONTINUOUSLY VARIABLE REAL TIME DAMPING |
| F48 | CHASSIS DRIVE LINE-ALL WHEEL DRIVE (AWD)/FOUR WHEEL DRIVE (4WD), DRIVER SELECT |
| FE9 | CERTIFICATION-EMISSION, FEDERAL |
| FHB | RATIO-TRANSAXLE FINAL DRIVE 3.47 |
| FJW | VEHICLE FUEL-GASOLINE E15 |
| FWD | CHASSIS DRIVE LINE-FRONT WHEEL DRIVE (FWD) |
| FX3 | RIDE AND HANDLING-AUTOMATIC ELECTRONIC CONTROLLED |
| G4F | PRIMARY COLOR-EXTERIOR, CHOCOLATTO MET-2 (425E) |
| G4Q | PRIMARY COLOR-EXTERIOR, ROWAN MET-2 (428E) |
| G59 | PRIMARY COLOR-EXTERIOR, DARKMOON BLUE MET-2 (433E) |
| G99 | AXLE POSITRACTION-TWIN CLUTCH, ELECTRONIC |
| GAZ | PRIMARY COLOR-EXTERIOR, SUMMIT WHITE (G) 8624 |
| GB8 | PRIMARY COLOR-EXTERIOR, BLACK MEET KETTLE MET (384A) |
| GEJ | PRIMARY COLOR-EXTERIOR, JINX MET-2 (293F) |
| GIR | PRIMARY COLOR-EXTERIOR, SATIN STEEL GRAY MET-2 (500B) |
| GNA | CHASSIS EQUIP FRONT-STRUT ASM |
| GNQ | CHASSIS EQUIP REAR-REAR AXLE, 5-LINK |
| GR8 | PRIMARY COLOR-EXTERIOR, ZANZIBAR MET-2 (686D) |
| H1T | INTERIOR TRIM CONFIG-CLOTH, LEVEL 1, JET BLACK |
| HBG | INTERIOR TRIM CONFIG-LEATHER/VINYL, LEVEL 1, JET BLACK / SIGNET |
| HBW | VIN FORMAT-CHINA TYPE |
| HJS | INTERIOR TRIM CONFIG-SUEDE/LEATHER/VINYL, LEVEL 1, JET BLACK / SIGNET |
| HKS | INTERIOR TRIM CONFIG-LEATHER/VINYL, LEVEL 1, WHISPER BEIGE |
| HKT | INTERIOR TRIM CONFIG-LEATHER/VINYL, LEVEL 3, WHISPER BEIGE |
| HLA | INTERIOR TRIM CONFIG-LEATHER/VINYL, LEVEL 1, JET BLACK |
| HLC | INTERIOR TRIM CONFIG-LEATHER/VINYL, LEVEL 3, JET BLACK |
| HS1 | ALERT-SAFETY HAPTIC SEAT |
| HYT | INTERIOR TRIM CONFIG-CLOTH/VINYL, LEVEL 1, WHISPER BEIGE |
| IOR | RADIO-INFOTAINMENT SYSTEM - 3.X LOW HMI, MIDLEVEL CONNECTIVITY 3.X |
| IOS | RADIO-INFOTAINMENT SYSTEM - 3.X MID/HIGH HMI, ENHANCED CONNECTIVITY, VOICE RECOGNITION, MID SD NAV CAPABLE |
| IOU | RADIO-INFOTAINMENT SYSTEM - 3.X MID/HIGH HMI, ENHANCED CONNECTIVITY, VOICE RECOGNITION, MID SD NAV |
| J21 | ENGINEERING YEAR-2021 |
| J61 | BRAKE SYSTEM-POWER, FRT & RR DISC, ABS, 17" (DNU NEXT NEW MAJOR) |
| J71 | BRAKE PARKING-POWER OPERATED (DNU NEXT NEW MAJOR CONTACT BFO FOR NEW STRATEGY) |
| JHD | BRK APL CTRL FEATURE-HILL DESCENT, GEAR HOLD |
| JJ2 | BRAKE LINING DNU-BRAKE NOISE AND DUST PERFORMANCE (DNU NXT NEW MAJOR CONTACT BFO) |
| JM8 | CONTROL-AUTOMATIC VEHICLE HOLD BRAKE (DNU NEXT NEW MAJOR CONTACT BFO FOR NEW STRATEGY) |
| K05 | HEATER ENG-BLOCK |
| K12 | FILTER-AIR, POLLUTANT |
| K1O | FILTER MONITOR-ENGINE AIR |
| K34 | CRUISE CONTROL-AUTOMATIC, ELECTRONIC |
| K4C | CHARGER-INDUCTIVE PORTABLE WIRELESS DEVICE |
| KA1 | HEATER SEAT FRT-DRVR & PASS |
| KA6 | HEATER SEAT-REAR |
| KB5 | CONTROL-ECM GRADE BRAKING (DNU NEXT NEW MAJOR CONTACT BFO NEW STRATEGY) |
| KC5 | RECEPTACLE-ELECTRICAL, ACCESSORY (DNU NEW/MAJOR - USE KH8) |
| KC8 | RECEPTACLE-ELECTRICAL, LOAD COMPARTMENT 12 VOLT |
| KEM | EQUIPMENT-INTR, AIR CLEANER, IONIZING |
| KI6 | RECEPTCL FRT CNSL RR-ELECTRICAL, 110 VOLT |
| KI7 | RECEPTCL FRT CNSL RR-ELECTRICAL, 230 VOLT |
| KL9 | ENG CONTROL-STOP/START SYS, CONVENTIONAL AT, CONVENTIONAL MT OR BRAKE RELEASE LATE RESTART |
| KR1 | REFRIGERANT-AIR CONDITIONING |
| KRV | REFRIGERANT-LOW GWP |
| KSG | CRUISE CONTROL-AUTOMATIC, ADAPTIVE, WITH STOP/GO |
| KU9 | VENTILATED SEAT FRT-DRVR & PASS |
| LHD | VEHICLE DRIVE-LEFTHAND DRIVE |
| LSY | ENGINE-GAS, 4 CYL, L4, 2.0L, SIDI, DOHC, VVT, ALUM, TURBO, VAR 3 |
| LZH | ELECTRONIC SYSTEM-EVENT DATA RECORD (NON-SECURED) |
| M3H | TRANSMISSION-AUTO 9 SPD, 9T50, ETRS GEN 1 |
| MAH | MARKETING AREA-US, PUERTO RICO/USVI |
| MAO | MARKETING AREA-CHINA GROUP |
| MBC | MARKETING AREA-CANADA |
| MCR | RECEPTACLE-MEMORY CARD (DO NOT USE NEXT NEW MAJOR) |
| MCX | MARKETING AREA-MEXICO |
| MCZ | PORT, MULTI ELEK DEV-USB (DO NOT USE NEXT NEW MAJOR, SEE BFO) |
| MDE | MOLDING B/S UPPER-BRIGHT, WINDOW ALL AROUND (DO NOT USE NEXT NEW MAJOR) |
| N06 | STEERING COLUMN LOCK-ELECTRICAL |
| N08 | LOCK CONTROL-FUEL FILLER DR, REM CONT |
| N34 | STEERING WHEEL-LEATHER, 3 SPOKES |
| N37 | STEERING COLUMN-TILT, TELESCOPING |
| N52 | STEERING WHEEL-3 SPOKES, DELUXE |
| NE1 | CERTIFICATION-EMISSION, GEOGRAPHICALLY RESTRICTED REGISTRATION |
| NE8 | EVAPORATIVE SYSTEM-LEVEL 3 EMISSIONS |
| NF5 | EMISSION SYSTEM-CHINA, 6B STRINGENT |
| NJ1 | STEERING-POWER, NON-VARIABLE RATIO, ELECTRIC |
| NKC | NOISE CONTROL-ACTIVE NOISE CANCELLATION, ENGINE |
| NTB | EMISSION SYSTEM-FEDERAL, TIER 3 |
| NUG | EMISSION SYSTEM-CALIFORNIA, SULEV30 |
| PJV | MOLDING B/S UPPER-SIDE WINDOW, ROOF LINE BLACK, BELT LINE BLACK (DO NOT USE NEXT NEW MAJOR) |
| PPW | PHONE PROJECTION-PHONE PROJECTION WIRELESS |
| PS1 | SALES PACKAGE-COMFORT (DO NOT USE NEXT NEW MAJOR - USE Y55) |
| Q7H | WHEEL-20 X 8.5, J, ALUMINUM, DESIGN 7 |
| QCS | TIRE SPARE-T145/70R17 SL 106M BW SPR |
| RDI | ACCESSORY-KEYLESS ENTRY |
| REP | WHEEL-18 X 8.0, J, ALUMINUM, DESIGN 21 |
| RER | WHEEL-18 X 8.0, J, ALUMINUM, DESIGN 22 |
| RIA | ACCESSORY-FLOOR LINER - CONTOURED |
| RTJ | WHEEL-20 X 8.5, J, ALUMINUM, DESIGN 4 |
| RWR | ACCESSORY-CAMERA - REAR VISION |
| RWS | ACCESSORY-FLOOR MATS - CARPET |
| RWU | ACCESSORY-CARGO AREA ORGANIZER - COLLAPSIBLE |
| RYT | ACCESSORY-FIRST AID KIT |
| RZW | ACCESSORY-HARNESS - TRAILER HITCH |
| S08 | ACCESSORY-HIGHWAY SAFETY KIT |
| S0M | ACCESSORY-ILLUMINATED DOOR SILLS |
| SAP | ACCESSORY-CHILD SEAT - AGE GROUP 1 |
| SBK | RESTRAINT-SEAT BELT PRETENSIONER, RR |
| SBZ | ACCESSORY-SPORT PEDAL KIT |
| SDB | ACCESSORY-CHILD SEAT - AGE GROUP 2/3 |
| SDE | ACCESSORY-TRAILER HITCH - REMOVABLE |
| SFE | ACCESSORY-WHEEL LOCKS |
| SIF | ACCESSORY-RSE - PORTABLE MEDIA CONNECTIVITY PACKAGE |
| SIL | ACCESSORY-RSE - PORTABLE MEDIA CONNECTIVITY PKG - W/INTEGRATED POWER |
| T3S | LAMP-DAYTIME RUNNING, SEPARATE CAVITY, LED (DO NOT USE NEXT NEW MAJOR) |
| T4L | HEADLAMPS-LED |
| T74 | CONTROL, HEADLAMPS-AUTOMATIC, DELAY (DNU NEXT NEW MAJOR) |
| T79 | LAMP-FOG, RR |
| T83 | CONTROL, HEADLAMPS-AUTOMATIC ON-OFF |
| T8Z | SEAT BELT SAFETY SYS-SHIFTER INTERLOCK, GEN 3, INFOTAINMENT CUSTOMIZABLE |
| T95 | CONTROL, HEADLAMPS-BEAM, DIRECTIONAL (AFL) |
| TB4 | BODY EQUIPMENT-LIFT GATE (MANUAL) |
| TB5 | BODY EQUIPMENT-LIFT GATE (POWER) |
| TB8 | HEADLAMP RULE OF RD-RH RULE OF THE ROAD |
| TC2 | BODY EQUIPMENT-LIFT GATE, POWER, HANDS FREE |
| TDM | MODE-TEEN DRIVER SETTINGS |
| TFK | ALARM-SEAT BELT WARNING |
| TQ5 | HEADLAMP HIGH BEAM-AUTO CONTROL |
| TR6 | CONTROL, HEADLAMPS-LEVELING SYSTEM, MANUAL |
| TR7 | CONTROL, HEADLAMPS-LEVELING SYSTEM, AUTOMATIC |
| TTW | CONTROL, HEADLAMPS-AUTOMATIC ON-OFF, TUNNEL DETECTION |
| TUJ | LAMP-MARKER, REFLEX, FRONT SIDE |
| U05 | HORN-DUAL |
| U08 | HORN-DUAL ELECTRIC |
| U18 | SPEEDOMETER-INST, KILO |
| U19 | SPEEDOMETER-INST, KILO & MILES, KILO ODOMETER |
| U2K | DIGITAL AUDIO SYSTEM-S-BAND |
| U2L | RECEPTION-HD |
| UB3 | ANTENNA-FIXED, RR SPOILER, RADIO |
| UD5 | PARK ASSIST-FRONT AND REAR |
| UD7 | PARK ASSIST-REAR |
| UDD | DISPLAY INSTRUMENT-DRIVER INFO ENHANCED (MULTI COLOR STANDARD GRAPHIC) |
| UE1 | COMMUNICATION SYSTEM-VEHICLE, ONSTAR |
| UE4 | SENSOR INDICATOR-FOLLOWING DISTANCE |
| UEC | SENSOR INDICATOR-AUTOMATIC AIR RECIRCULATION |
| UEN | SENSOR INDICATOR-SEAT BELT, FRT PASS PRESENCE DETECTOR |
| UEU | SENSOR INDICATOR-FORWARD COLLISION ALERT |
| UFG | REAR CROSS TRAFFIC-ALERT |
| UG1 | OPENER-GARAGE DOOR, UNIVERSAL |
| UGE | LAMP-RR TAIL, LED (DO NOT USE, SEE BFO) |
| UGN | COLL IMMINENT BRK-ALL SPEED, VEH FWD MOVEMENT, BRAKE PREFILL, INTEGRATED BRAKE ASSIST |
| UH5 | INDICATOR-SEAT BELT WARNING, REAR SEAT |
| UHG | INDICATOR-SEAT BELT WARNING, DRIVER |
| UHS | DISPLAY INSTRUMENT-DRIVER INFO ENHANCED (MULTI COLOR ENHANCED GRAPHIC) |
| UHX | LANE ACTIVE SAFETY-KEEP ASSIST |
| UHY | COLL IMMINENT BRK-LOW SPEED, VEH FWD MOVEMENT, BRAKE PREFILL, INTEGRATED BRAKE ASSIST |
| UJN | TIRE PRESS INDICATOR-AUTO LEARN |
| UKC | SIDE ACTIVE SAFETY-OBSTACLE DETECTION ENHANCED |
| UKJ | PED DETECTION FRT-BASIC, PEDESTRIANS |
| UKZ | PARK ASSIST-FRONT, REAR, LATERAL-FRONT (SEMIAUTOMATIC STEERING & BRAKING & GEAR SHIFTING ADVANCED PARKING AID) |
| UMN | SPEEDOMETER-INST, MILES & KILO, MILES ODOMETER |
| UQF | SPEAKER SYSTEM-STANDARD AUDIO |
| UQG | SPEAKER SYSTEM-ENHANCED AUDIO, AMPLIFIER |
| UQS | SPEAKER SYSTEM-PREMIUM AUDIO, BRANDED SURROUND AMPLIFIER |
| USK | SENSOR INDICATOR-AIR QUALITY |
| USS | RECEPTACLE-USB CHARGE PORT (DO NOT USE NEXT NEW MAJOR, SEE BFO) |
| UV2 | VISION-360 VIEW, MONO, HD DIGITAL |
| UV6 | HEAD UP DISPLAY-WINDSHIELD |
| UVB | VISION-REAR VIEW, MONO, HD DIGITAL |
| UVD | STEERING WHEEL HEAT-MANUAL |
| UVG | HEADLAMP HIGH BEAM-AUTO CONTROL, ADAPTIVE HEADLAMP SYSTEM |
| V33 | TOOL KIT-ROAD, EMERGENCY |
| V48 | COOLANT-ENGINE MAXIMUM PROTECTION |
| V5F | LUGGAGE CARRIER-ROOF, SILVER |
| V5H | LUGGAGE CARRIER-ROOF, BLACK |
| V76 | HOOK-TOW |
| V86 | VEHICLE STATEMENT-VEHICLE LABEL CONTENT - CHINA |
| V8C | VEHICLE STATEMENT-VEHICLE LABEL CONTENT - NO CERT STATEMENT (MEXICO) |
| V8D | VEHICLE STATEMENT-VEHICLE LABEL CONTENT - U.S. FMVSS |
| V8E | VEHICLE STATEMENT-VEHICLE LABEL CONTENT - CANADA CMVSS |
| V92 | TRAILER PROVISIONS- |
| VAV | ACCESSORY-FLOOR MATS - ALL WEATHER |
| VK3 | LICENSE PLATE FRONT-FRT MOUNTING PKG |
| VLL | ACCESSORY-CROSS RAILS - ROOF RACK - REMOVABLE |
| VNU | VIN FORMAT-U.S. TYPE |
| VQK | ACCESSORY-SPLASH GUARDS - CUSTOM MOLDED |
| VR5 | PROVISIONS-SLOW VEHICLE WARNING TRIANGLE MOUNTING (DO NOT USE NEXT NEW MAJOR) |
| VRS | ACCESSORY-CARGO SECURITY SHADE |
| VTI | SHUTTERS-FRONT GRILLE, ACTIVE, UPR |
| VV4 | COMMUNICATION EQUIP-MOBILE INTERNET CONNECTIVITY |
| W2D | ACCESSORY-CARGO NET |
| WDA | IDENTIFICATION-AVENIR ALL WHEEL DRIVE |
| WFD | IDENTIFICATION-AVENIR FRONT WHEEL DRIVE |
| WH6 | ACCESSORY-CARGO NET - FLOOR MOUNTED |
| WJU | SALES PACKAGE-BLACK |
| WLD | WINDOW CONTROL-REMOTE EXPRESS DOWN, ALL WINDOWS |
| WLE | WINDOW CONTROL-REMOTE EXPRESS-UP/DOWN, ALL WINDOWS |
| WMU | VIN MODEL YEAR-2021 |
| XBT | TIRE ALL-245/45R20 SL 99V BW HW3 VAR 1 |
| XBU | TIRE ALL-235/55R18 SL 100V BW HW3 VAR 1 |
| XD7 | TIRE ALL-235/60R18 SL 103H BW AL3 VAR 1 |
| XD9 | TIRE ALL-245/45R20 SL 99H BW AL3 VAR 1 |
| XL8 | FREQUENCIES RATING-433 MHZ |
| Y4U | MODEL CONVERSION-BUICK GL |
| Y6S | MODEL CONVERSION-BUICK AVENIR |
| Y8A | GVW RATING-NONE |
| YF5 | CERTIFICATION-EMISSION, CALIFORNIA |
| Z1Y | PAINT-TWO COAT, BASE COAT & CLEAR COAT |
| Z49 | COUNTRY-CANADA |
| ZP5 | SEATING ARRANGEMENT-5 PASS |