For 1990-2009 cars

Table 1: | Instrument Cluster Indicators
Table 2: | Driver Information Center Warning Code
Table 3: | Driver Information Center Warning Messages

#### Instrument Cluster Indicators

Symbol | Reference
--- | ---
| ABS: ABS Description and Operation
| Air Bag: SIR System Description and Operation
| Brake: Brake Warning System Description and Operation
| Charge: Charging System Description and Operation
| Cruise Control: Cruise Control Description and Operation
| Washer Fluid Low: Wiper/Washer System Description and Operation
| The instrument cluster displays the engine oil pressure low indicator as determined by the engine control module (ECM). The ECM monitors the engine oil pressure switch/sensor signal circuit to determine the engine oil pressure. The ECM sends the engine oil pressure information to the body control module (BCM) via the serial data circuit. The instrument cluster receives a serial data message from the BCM requesting display of the engine oil pressure from the ECM. When the instrument cluster detects a low engine oil pressure it turns on the engine oil pressure low indicator.
| Fasten Safety Belt: Seat Belt System Description and Operation
| Front Fog Lamps: Exterior Lighting Systems Description and Operation
| High Beam: Exterior Lighting Systems Description and Operation
| Park Assistant Service: Object Detection Description and Operation
| Lights On Warning: Exterior Lighting Systems Description and Operation
| Malfunction Indication Lamp:

- LXV: Engine Control Module Description
- LLW: Engine Control Module Description

| Lights On: Exterior Lighting Systems Description and Operation
| Rear Fog Lamps: Exterior Lighting Systems Description and Operation
| Security: Immobilizer Description and Operation
| Turn Signals: Exterior Lighting Systems Description and Operation
| Vehicle Dynamics Caution: ABS Description and Operation
| Vehicle Dynamics Caution Off: ABS Description and Operation
| Traction Control Off: ABS Description and Operation
| Automatic Smart Beam: Exterior Lighting Systems Description and Operation
| Rain Sense: Wiper/Washer System Description and Operation
| Door Ajar: Power Door Locks Description and Operation
| Clutch: Starting System Description and Operation
| Service Vehicle Soon: Refer to Indicator/Warning Message Description and Operation
| Glow Plug: Glow Plug System Description

#### Driver Information Center Warning Code

Code | Explanation | Reference
--- | --- | ---
1 | Change Oil Indicator | Engine Control Module Description for LXV Engine Control Module Description for LLW
2 | No Remote Detected, Press Clutch To Restart | Starting System Description and Operation
3 | Coolant Level Low | Cooling System Description and Operation
4 | Air Conditioning Off | Automatic HVAC Description and Operation for C68 Manual HVAC Description and Operation for C67
5 | Steering Column Is Locked | Steering Wheel and Column Description and Operation
7 | Turn Steering Wheel, Turn Key Off, Then On | Steering Wheel and Column Description and Operation
8 | Turn Key Off, Then On - Repeat Breath Test | Steering Wheel and Column Description and Operation
9 | Turn Steering Wheel, Start Vehicle Again | Steering Wheel and Column Description and Operation
10 | Brakes Overheated | Brake Warning System Description and Operation
11 | Brakes Worn | Brake Warning System Description and Operation
15 | High Mounted Brake Light Failure | Exterior Lighting Systems Description and Operation
16 | Service Brake Lights | Exterior Lighting Systems Description and Operation
17 | Headlamp Leveling Malfunction - Contact Service | Exterior Lighting Systems Description and Operation
18 | Left Low Beam Failure | Exterior Lighting Systems Description and Operation
19 | Rear Fog Light Failure | Exterior Lighting Systems Description and Operation
20 | Right Low Beam Failure | Exterior Lighting Systems Description and Operation
21 | Left Front Position Light Failure | Exterior Lighting Systems Description and Operation
22 | Right Front Position Light Failure | Exterior Lighting Systems Description and Operation
23 | Reversing Light Failure | Exterior Lighting Systems Description and Operation
24 | License Plate Light Failure | Exterior Lighting Systems Description and Operation
25 | Left Front Turn Indicator Failure | Exterior Lighting Systems Description and Operation
26 | Left Rear Turn Indicator Failure | Exterior Lighting Systems Description and Operation
27 | Right Front Turn Indicator Failure | Exterior Lighting Systems Description and Operation
28 | Right Rear Turn Indicator Failure | Exterior Lighting Systems Description and Operation
29 | Check Trailer Brake Light | Exterior Lighting Systems Description and Operation
30 | Check Trailer Reversing Lamp | Exterior Lighting Systems Description and Operation
31 | Check Left Trailer Turn Signal Lamp | Exterior Lighting Systems Description and Operation
32 | Check Right Trailer Turn Signal Lamp | Exterior Lighting Systems Description and Operation
33 | Check Trailer Rear Fog Lamp | Exterior Lighting Systems Description and Operation
34 | Check Trailer Rear Lamp | Exterior Lighting Systems Description and Operation
35 | Replace Battery In Remote Key | Keyless Entry System Description and Operation
48 | Clean Side Blind Zone Alert | Object Detection Description and Operation
50 | Reset Hood - See Owners Manual | Immobilizer Description and Operation
54 | Water In Fuel - Contact Service | Fuel System Description for LXV Fuel System Description for LLW
55 | Service Diesel Particulate Filter | Diesel Particulate Filter (DPF) System Description
59 | Open, Then Close Driver Window | Power Windows Description and Operation
60 | Open, Then Close Front Passenger Window | Power Windows Description and Operation
61 | Open, Then Close Rear Left Passenger Window | Power Windows Description and Operation
62 | Open, Then Close Rear Right Passenger Window | Power Windows Description and Operation
65 | Theft Attempted | Content Theft Deterrent (CTD) Description and Operation
66 | Service Theft Alarm | Content Theft Deterrent (CTD) Description and Operation
67 | Service Steering Column Lock | Power Steering System Description and Operation
68 | Service Power Steering | Power Steering System Description and Operation
70 | Service Leveling System | Exterior Lighting Systems Description and Operation
75 | Service A/C System | Automatic HVAC Description and Operation for C68 Manual HVAC Description and Operation for C67
76 | Service Side Blind Zone Alert | Object Detection Description and Operation
78 | Service Pedestrian Protection System | Object Detection Description and Operation
79 | Engine Oil Low - Add Oil | Refer to Indicator/Warning Message Description and Operation
80 | Change Trans Fluid | Transmission General Description
81 | Service Transmission | Transmission General Description
82 | Change Engine Oil Soon | Refer to Indicator/Warning Message Description and Operation
84 | Engine power is reduced | Engine Control Module Description for LXV Engine Control Module Description for LLW
95 | Service Airbag | SIR System Description and Operation
99 | Pedestrian Protection System Disabled | Object Detection Description and Operation

#### Driver Information Center Warning Messages

Message | Reference
--- | ---
1 - 4 Shift | Automatic Transmission Shift Lock Control Description and Operation
AC Off Due to High Engine Temp. | Automatic HVAC Description and Operation for C68 Manual HVAC Description and Operation for C67
Apply Brake Before Cruise | Cruise Control Description and Operation
Automatic Seatbelt Tightening Unavailable | Seat Belt System Description and Operation
Brake Fluid Low | Brake Warning System Description and Operation
Brakes Overheated | Brake Warning System Description and Operation
Brakes Worn | Brake Warning System Description and Operation
Buckle Passenger Seatbelt | Seat Belt System Description and Operation
Buckle Rear Center Passenger | Seat Belt System Description and Operation
Buckle Rear Left Passenger | Seat Belt System Description and Operation
Buckle Rear Right Passenger | Seat Belt System Description and Operation
Buckle Seatbelt | Seat Belt System Description and Operation
Change A/C Filter | Automatic HVAC Description and Operation for C68 Manual HVAC Description and Operation for C67
Change Engine Oil Soon | Refer to Indicator/Warning Message Description and Operation
Change Fuel Filter | Fuel System Description for LXV Fuel System Description for LLW
Change Transmission Fluid | Transmission General Description
Check Right Reversing Lamp | Exterior Lighting Systems Description and Operation
Check Brake Lights | Exterior Lighting Systems Description and Operation
Check High Mounted Brake Lamp | Exterior Lighting Systems Description and Operation
Check Left Daytime Running Lamp | Exterior Lighting Systems Description and Operation
Check Left Front Turn Signal Lamp | Exterior Lighting Systems Description and Operation
Check Left Low Beam Lamp | Exterior Lighting Systems Description and Operation
Check Left Position Lamp | Exterior Lighting Systems Description and Operation
Check Left Rear Parking Lamp | Exterior Lighting Systems Description and Operation
Check Left Rear Turn Signal Lamp | Exterior Lighting Systems Description and Operation
Check Left Trailer Turn Signal Lamp | Exterior Lighting Systems Description and Operation
Check License Plate Lamp | Exterior Lighting Systems Description and Operation
Check Rear Fog Lamp | Exterior Lighting Systems Description and Operation
Check Reversing Lamp | Exterior Lighting Systems Description and Operation
Check Right Daytime Running Lamp | Exterior Lighting Systems Description and Operation
Check Right Front Turn Signal Lamp | Exterior Lighting Systems Description and Operation
Check Right Low Beam Lamp | Exterior Lighting Systems Description and Operation
Check Right Position Lamp | Exterior Lighting Systems Description and Operation
Check Right Rear Parking Lamp | Exterior Lighting Systems Description and Operation
Check Right Rear Turn Signal Lamp | Exterior Lighting Systems Description and Operation
Check Right Trailer Turn Signal Lamp | Exterior Lighting Systems Description and Operation
Check Trailer Brake Lamp | Exterior Lighting Systems Description and Operation
Check Trailer Rear Fog Lamp | Exterior Lighting Systems Description and Operation
Check Trailer Rear Lamp | Exterior Lighting Systems Description and Operation
Check Trailer Reversing Lamp | Exterior Lighting Systems Description and Operation
Coolant Level Low - Add Coolant | Cooling System Description and Operation
Cruise Set To | Cruise Control Description and Operation
Diesel Engine Shut Down | Engine Control Module Description
Diesel Engine Shut Down Soon | Engine Control Module Description
Door Open | Door Ajar Indicator Description and Operation
Driver Door Open | Door Ajar Indicator Description and Operation
Driver Seat Unlocked | Power Seats System Description and Operation
Engine Oil Hot Idle Engine | Cooling System Description and Operation
Engine Oil Low - Add Oil | Refer to Indicator/Warning Message Description and Operation
Engine Overheated - Idle Engine | Cooling System Description and Operation
Engine Overheated - Stop Engine | Cooling System Description and Operation
Engine Overspeed | Engine Control Module Description for LXV Engine Control Module Description for LLW
Engine Power is Reduced | Engine Control Module Description for LXV Engine Control Module Description for LLW
ESP Competitive Mode | ABS Description and Operation
Headlamp Leveling Malfunction - Contact Service | Exterior Lighting Systems Description and Operation
Heated Wash Fluid, Wash Wipes Pending | Wiper/Washer System Description and Operation
Heated Washer Fluid System Off | Wiper/Washer System Description and Operation
High Coolant Temperature | Cooling System Description and Operation
Hood Ajar | Immobilizer Description and Operation
Hood Open | Immobilizer Description and Operation
Insert New Remote, Press Start Button | Keyless Entry System Description and Operation
Low Battery | Battery Description and Operation
No Remote Detected | Keyless Entry System Description and Operation
No Remote Detected, Press Brake to Restart | Starting System Description and Operation
No Remote Detected, Press Clutch to Restart | Starting System Description and Operation
Oil Pressure Low - Stop Engine | Refer to Indicator/Warning Message Description and Operation
Open, then Close Driver Window | Power Windows Description and Operation
Open, then Close Driver Window | Power Windows Description and Operation
Open, then Close Endgate Window | Power Windows Description and Operation
Open, then Close Left Rear Window | Power Windows Description and Operation
Open, then Close Left Rear Window | Power Windows Description and Operation
Open, then Close Midgate Window | Power Windows Description and Operation
Open, then Close Passenger Window | Power Windows Description and Operation
Open, then Close Passenger Window | Power Windows Description and Operation
Open, then Close Right Rear Window | Power Windows Description and Operation
Open, then Close Right Rear Window | Power Windows Description and Operation
Open, then Close Sunroof Window | Sunroof Description and Operation
Open, then Close XX Window | Power Windows Description and Operation
Park Assist Fault Clean Bumper | Object Detection Description and Operation
Particulate Filter Is Full. See Owner's Manual Now | Diesel Particulate Filter (DPF) System Description
Passenger Door Open | Door Ajar Indicator Description and Operation
Passenger Front Seat Unlocked | Power Seats System Description and Operation
Pedestrian Protection System Disabled | Object Detection Description and Operation
Press Brake to Start Engine | Starting System Description and Operation
Press Button Again to Turn Engine Off | Starting System Description and Operation
Press Clutch to Start Engine | Starting System Description and Operation
Press Engine Start Button to Learn | Keyless Entry System Description and Operation
Press Resume Twice to Resume Cruise from Stop | Cruise Control Description and Operation
Program Cluster | Refer to Indicator/Warning Message Description and Operation
Rain Sense Off | Wiper/Washer System Description and Operation
Rear Left Seat Backrest Unlocked | Power Seats System Description and Operation
Rear Right Seat Backrest Unlocked | Power Seats System Description and Operation
Rear Seatbelts Buckled | Seat Belt System Description and Operation
Rear Seatbelts Unbuckled | Seat Belt System Description and Operation
Reminder: Remote Left in Vehicle | Keyless Entry System Description and Operation
Remote Key Learning Active | Keyless Entry System Description and Operation
Remote Key Learning Complete | Keyless Entry System Description and Operation
Remote Start Stopped | Starting System Description and Operation
Replace Battery in Remote Key | Keyless Entry System Description and Operation
Right Rear Door Open | Door Ajar Indicator Description and Operation
Service A/C System | Automatic HVAC Description and Operation for C68 Manual HVAC Description and Operation for C67
Service Airbag | SIR System Description and Operation
Service Automatic Seatbelt Tightening | Seat Belt System Description and Operation
Service Battery Charging System | Charging System Description and Operation
Service Brake Apply Sensor | Exterior Lighting Systems Description and Operation
Service Brake Assist | ABS Description and Operation
Service ESP | ABS Description and Operation
Service Leveling System | Exterior Lighting Systems Description and Operation
Service Pedestrian Protection System | Object Detection Description and Operation
Service Power Steering | Power Steering System Description and Operation
Service Rear Auto Brake/Park Assist | Object Detection Description and Operation
Service StabiliTrak | ABS Description and Operation
Service Steering Column Lock | Steering Wheel and Column Description and Operation
Service Theft Alarm | Content Theft Deterrent (CTD) Description and Operation
Service Theft Deterrent System | Content Theft Deterrent (CTD) Description and Operation
Service Throttle Soon | Throttle Actuator Control (TAC) System Description for LXV Accelerator Pedal Position System Description for LLW
Service Traction Control | ABS Description and Operation
Service Transmission | Transmission General Description
Set Speed | Cruise Control Description and Operation
Shift Denied | Automatic Transmission Shift Lock Control Description and Operation
Shift to Park | Automatic Transmission Shift Lock Control Description and Operation
Shift To Park Before Exiting | Transmission General Description
Shifter Locked - Buckle Seatbelt | Automatic Transmission Shift Lock Control Description and Operation
Shifter Unlocked - Brake to Shift | Automatic Transmission Shift Lock Control Description and Operation
Speed Limited To | Transmission General Description
Starting Disabled - Service Throttle | Throttle Actuator Control (TAC) System Description for LXV Accelerator Pedal Position System Description for LLW
Steering Column Is Locked | Steering Wheel and Column Description and Operation
Theft Attempted | Content Theft Deterrent (CTD) Description and Operation
Transmission Hot - Idle Engine | Transmission General Description
Transport Fuse Removed | Electrical Power Management Description and Operation
Trunk Open | Luggage Compartment Description and Operation
Trunk, Liftgate, or Rear Access Open | Luggage Compartment Description and Operation
Turn Key Off, Then On - Repeat Breath Test | Steering Wheel and Column Description and Operation
Turn Signal On | Exterior Lighting Systems Description and Operation
Turn Steering Wheel - Turn Key Off, Then On | Steering Wheel and Column Description and Operation
Turn Steering Wheel, Start Vehicle Again | Steering Wheel and Column Description and Operation
Vehicle Overspeed | Refer to Indicator/Warning Message Description and Operation
Washer Fluid Low - Add Fluid | Wiper/Washer System Description and Operation
Water in Fuel - Contact Service | Fuel System Description for LXV Fuel System Description for LLW

### Change Engine Oil Soon

The driver information center displays the Change Engine Oil Soon message when the engine control module (ECM) determines that the engine oil life is below 5 percent. The ECM sends a serial data message to the instrument cluster requesting the Change Engine Oil Soon message. After the oil is changed, reset the engine oil monitor. Refer to GM Oil Life System Resetting.

• | When the Low Engine Oil Level/Change Engine Oil Soon message displays in the driver information center due to a low engine oil level condition, make sure that the ignition is turned OFF before adding or changing the oil in the vehicle. Failure to do so may result in the Low Engine Oil Level/Change Engine Oil Soon message staying on after the engine attains proper oil level.

• | Before replacing the instrument cluster because of the Low Engine Oil Level/Change Engine Oil Soon message staying ON after an oil change or engine oil addition, it is necessary for the engine to undergo a thermodynamic cycle process. The instrument cluster may not be malfunctioning but only needs the Low Engine Oil Level/Change Engine Oil Soon to turn Off. After the oil is changed, reset the engine oil monitor. Refer to GM Oil Life System Resetting.

### Engine Oil Low - Add Oil

The driver information center displays Engine Oil Low - Add Oil message when the ECM detects a low engine oil level condition from the engine oil level sensor/switch. The ECM sends a High Speed CAN-Bus message to the body control module (BCM). The BCM then sends a Low Speed CAN-Bus message to the instrument cluster requesting to display the Engine Oil Low - Add Oil message in the driver information center.

### Oil Pressure Low - Stop Engine

The driver information center displays the Oil Pressure Low - Stop Engine message when the ECM detects a low engine oil pressure condition from the engine oil pressure sensor/switch. The ECM sends a High Speed CAN-Bus message to BCM. The BCM then sends a Low Speed CAN-Bus message to the instrument cluster requesting to display the Oil Pressure Low - Stop Engine message in the driver information center.

### Program Cluster

The driver information center displays a Program Cluster message when the instrument cluster needs to be programmed. The instrument cluster requires programming after a replacement or whenever the message is displayed in the driver information center. The instrument cluster must be programmed and setup using the service programming system (SPS). Refer to Control Module References.

### Service Vehicle Soon

The driver information center displays the Service Vehicle Soon indicator when the ECM detects certain malfunctions that are not related to the emissions system or other modules detect malfunctions that require service to the vehicle. The instrument cluster receives serial data messages from various modules requesting the display of Service Vehicle Soon indicator.

### Vehicle Overspeed

The driver information center displays a Vehicle Overspeed message when the instrument cluster determines that the vehicle speed is more than 120 km/h (75 MPH) in case the vehicle overspeed function is activated.