Jeep Liberty: Onboard Diagnostic System — OBD II - Maintaining Your Vehicle - Jeep Liberty Owner's ManualJeep Liberty: Onboard Diagnostic System — OBD II

Your vehicle is equipped with a sophisticated onboard diagnostic system called OBD II. This system monitors the performance of the emissions, engine, and automatic transmission control systems. When these systems are operating properly, your vehicle will provide excellent performance and fuel economy, as well as engine emissions well within current government regulations.

If any of these systems require service, the OBD II system will turn on the “Malfunction Indicator Light (MIL).” It will also store diagnostic codes and other information to assist your service technician in making repairs. Although your vehicle will usually be drivable and not need towing, see your authorized dealer for service as soon as possible.

CAUTION!
• Prolonged driving with the MIL on could cause further damage to the emission control system. It could also affect fuel economy and drivability. The vehicle must be serviced before any emissions tests can be performed.

• If the MIL is flashing while the engine is running, severe catalytic converter damage and power loss will soon occur. Immediate service is required.

Engine Compartment — 3.7L
1 — Air Cleaner Filter 2 — Engine Oil Dipstick 3 — Brake Fluid Reservoir 4 — Integrated Power Module (Fuses) 5 — Battery 6 — Washer Fluid Reservoir 7 — Engine Coolant Reser ...

Loose Fuel Filler Cap Message
If the vehicle diagnostic system determines that the fuel filler cap is loose, improperly installed, or damaged, a “gASCAP” message will display in the odometer or a “CHECK gASCAP” messa ...

See also:

Examples of the types of accidents in which deployment of the driver’s/driver’s and front passenger’s SRS frontal airbag(s) is unlikely to occur.
1) The vehicle strikes an object, such as a telephone pole or sign pole. 2) The vehicle slides under the load bed of a truck. 3) The vehicle sustains an oblique offset frontal impact. 4) Th ...

Setting a speed
Once ACC has been put in standby mode, use the or buttons to store (set) the vehicle's current speed. This puts the system in active mode. The set speed, for example 55 mph, is shown in th ...

Loading tips
- The GVW must not exceed GVWR or GAWR as specified on the F.M.V.S.S./ C.M.V.S.S. certification label. - Do not load the front and rear axle to the GAWR. Doing so will exceed the GVWR. - ...