GM Service Manual Online
For 1990-2009 cars only

To access the rear underseat fuse blocks, you will have to first remove the rear seat cushion.

Removing the Rear Seat Cushion

Notice: If, when removing or reinstalling the rear seat, you do not do it carefully, you could damage the fuse center. Avoid contact between the rear seat and the fuse center whenever you remove or reinstall the rear seat.

To remove the rear seat cushion, do the following:

  1. Pull up on the front of the cushion to release the front hooks.
  2. Pull the cushion up and out toward the front of the vehicle.
  3. Slide the cushion out one of the rear doors and set it aside.

Rear Pass-Through Seat


Object Number: 822635  Size: B4

Split-Folding Rear Seat


Object Number: 822434  Size: B4

Caution: A safety belt that is not properly routed through the seat cushion or is twisted will not provide the protection needed in a crash. If the safety belt has not been routed through the seat cushion at all, it will not be there to work for the next passenger. The person sitting in that position could be badly injured. After reinstalling the seat cushion, always check to be sure that the safety belts are properly routed and are not twisted.

To reinstall the rear seat cushion, do the following:

  1. Position the seat cushion so that you can route the safety belts through the proper slots in the seat cushion.
  2. Slide the rear of the cushion up and under the seatback so the rear-locating guides hook into the wire loops on the back frame.
  3. With the seat cushion lowered, push rearward and then press down on the seat cushion until the seat cushion snaps into place.
  4. Push and pull on the seat cushion to make sure it is locked into place.
  5. Check to make sure the safety belts are properly routed and that no portion of any safety belt is trapped under the seat cushion.

Rear Underseat Fuse Block (Driver's Side)


Object Number: 829502  Size: B1

The driver's side rear fuse block is located under the rear seat on the driver's side of the vehicle. The rear seat cushion must be removed to access the rear fuse block. See "Removing the Rear Seat Cushion" listed previously.

To access the fuse block, push in the two tabs located at each end of the fuse block cover. Then lift the cover off.


Object Number: 1385739  Size: B1

Fuses

Usage

SPARE

Not Used

SPARE

Not Used

AUDIO

Radio, OnStar Module

SPARE

Not Used

REAR DR MOD

Rear Door Modules

SPARE

Not Used

DRIVER DR MOD

Driver's Door Module

BAS

Taillamps, Center High-Mounted Stoplamp, Flasher Module, ABS Module, Trailer Lamps

HDLP LEVELING

Headlamp Leveling System Chassis Sensors (Export Only)

SPARE

Not Used

CCP

CCP (Climate Control Panel)

IGN 3

Heated Seat Modules, Air Inlet Motor, Shifter Assembly

SPARE

Not Used

SPARE

Not Used

FUSE PULLER

Fuse Puller

L FRT HTD SEAT MOD

Driver's Heated Seat Module

MEM/ADAPT SEAT

Driver's Power Seat Switch, Memory Seat Module

TRUNK DR RELEASE

Trunk Release Motor

REVERSE LAMP

ISRVM (Inside Rearview Mirror), License Plate Lamp Assembly

SPARE

Not Used

POSITION LAMP

Taillamp Assemblies, Front Position Lamp Assemblies

J Cases

Usage

AMP

Audio Amplifier

PUSHER FAN

Pusher Fan (Export Only)

Relays

Usage

BAS RELAY MINI

Brake Apply Sensor

PUSHER FAN

Pusher Fan (Export Only)

L POSITION RELAY MICRO

Driver's Side Position Lamp

TRK DR REL SOL RELAY MICRO

Trunk Release Motor

REV LAMP RELAY MICRO

ISRVM (Inside Rearview Mirror), License Plate Lamp Assembly

R POSITION RELAY MICRO

Passenger's Side Position Lamp

IGN 3 RELAY MICRO

Heated Seat Modules, Air Inlet Motor, Shifter Assembly

STANDING LAMP RLY MICRO

Control for Position Lamp Relays

Circuit Breakers

Usage

SEAT C/B

Power Seat Switches, Memory Seat Module

Misc.

Usage

JOINT CONNECTOR

Joint Connector

Rear Underseat Fuse Block (Passenger's Side)


Object Number: 829503  Size: B1

The passenger's side rear fuse block is located under the rear seat on the passenger's side of the vehicle. The rear seat cushion must be removed to access the rear fuse block. See "Removing the Rear Seat Cushion" listed previously.

To access the fuse block, push in the two tabs located at each end of the fuse block cover. Then lift the cover off.


Object Number: 1427916  Size: B1

Fuses

Usage

TRUNK DIODE

Trunk Lamp

POWER SOUNDER

Power Sounder, Inclination Sensor

SPARE

Not Used

CANISTER VENT

Canister Vent Solenoid

FUEL PUMP MTR

Fuel Pump Motor

SPARE

Not Used

R FRT HTD SEAT MOD

Passenger's Side Heated Seat Module

SPARE

Not Used

AIR BAG

SDM (Sensing Diagnostic Module)

RIM

ISRVM (Inside Rearview Mirror), Power Sounder, RIM

ABS

Anti-Lock Brake System

SPARE

Not Used

SPARE

Not Used

SPARE

Not Used

FUSE PULLER

Fuse Puller

INTERIOR LAMP

Hush Panel Lamps, Puddle Lamps, Overhead Courtesy Lamp Assembly

PSGR DR MOD

Right Front Passenger Door Module

RIM/IGN SW

RIM (Rear Integration Module), Ignition Switch, Key Lock Cylinder

REAR FOG LAMP

Rear Fog Lamps (Export Only)

SPARE

Not Used

TV/VICS

TV Tuner Assembly (Export Only), VICS (Vehicle Information Communication System) Module

J Cases

Usage

REAR DEFOG

Rear Window Defogger Element

SUNROOF MOD

Power Sunroof Module

Relays

Usage

SPARE

Not Used

REAR DEFOG RELAY MINI

Rear Window Defogger

SPARE

Not Used

REAR FOG LAMP RLY MICRO

Rear Fog Lamps (Export Only)

FUEL PUMP MOTOR RLY MICRO

Fuel Pump Motor

INT LAMP RELAY MICRO

Hush Panel Lamps, Puddle Lamps, Overhead Courtesy Lamp Assembly

IGN 1 RELAY MICRO

Ignition Switch

SPARE

Not Used

Circuit Breakers

Usage

DR MOD PWR C/B

Door Modules

Misc.

Usage

JOINT CONNECTOR

Joint Connector