For 1990-2009 cars only
Check Coolant Level Message Appears on Driver Information Center (DIC) and/or Reduced Heating Performance (Add Engine Coolant)
| Subject: | "Check Coolant Level" Message Appears on Driver Information Center (DIC) and/or Reduced Heating Performance (Add Engine Coolant) |
| Models: | 2001-2002 Cadillac DeVille |
| Built Prior To VIN Breakpoint 2U285650 |
This bulletin is being reissued to change the serial number breakpoint, and to place the bulletin in the proper sub-section. Please discard bulletin 02-06-123-001.
Condition
Some customers may comment on the following conditions:
| • | Illumination of the "Check Coolant Level" message on the DIC during a cold start. |
| • | Reduced HVAC performance (the heater is not providing enough heat). |
Cause
This condition may be due to an underfill condition of the engine coolant during the vehicle assembly process.
Correction
Caution: Do not remove the coolant recovery reservoir (surge tank) cap while the cooling system is hot. Serious personal injury may result. Only remove the cap from a cool engine.
- If the vehicle cooling system is NOT leaking and the coolant level is NOT at the proper level:
- If the vehicle cooling system coolant level is leaking, perform the standard diagnostic procedures in the Service Manual.
| • | Fill the surge tank with a 50/50 mixture of DEX-COOL® coolant and clean drinkable or distilled water until the coolant level is 6.4 cm (2.5 in) below the base of the surge tank fill neck. |
| • | Refer to Engine Coolant in the Service and Appearance Care section of the Owner's Manual. |
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
J3000* | Fluid Engine Coolant -- Add | 0.2 hr |
*This labor operation is to be used only with this bulletin. It will not be published in the Labor Time Guide. | ||
