GM Service Manual Online
For 1990-2009 cars only

Some bi-fuel decals require information such as the date of manufacture or the tank service expiration date. Record any necessary information before applying the decal to the vehicle.

If a body panel or a component with a bi-fuel decal is replaced, apply the new decal as follows:


    Object Number: 491437  Size: LH
  1. The bi-fuel labels are located as follows:
  2. • Underhood Fuse Block Label (1)
    • Jack Usage Label (2)
    • Tank Cover Caution Label (3)
    • CNG Fill Caution Label (4)
    • CNG Filter Label (5)
    • CNG Fill Instruction Location Label (6)
    • CNG Fuel Only Label (7)
    • Vehicle Emission Control Information (VECI) Label (8)
    • CNG Manual Shut-Off Valve Label (9) (1998 model year only)
    • CNG Tank Cover Caution Label (10)
    • Manufacturer Alteration Label (11)
    • Bi-Fuel Information Label (12)
    • Periodic Gasoline Operation Label (13)
    • CNG Tank Fill Valve Receptacle Seal (14)
    • CNG Warning Diamond Label (15)
    • CNG Tank Strap Certification (TRRC) Label (16)
    • CNG Tank Cover Caution Label (17)
  3. Refer to the Decal and Stripe Replacement procedure in the Body and Accessories section of the gasoline service information for surface preparation.
  4. Apply the decal to the surface of the vehicle.