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STARTING AND OPERATING
when the outsid e tem peratu re decreases, the tire pressu re cold placard pressu re. Once the “Tire Pressu re Monitor-
will decrease. Tire pressu re shou ld alw ays be set based ing Telltale Light” has been illuminated , the tire pressu re
on cold inflation tire pressu re. This is defined as the tire must be increased to the recom mend ed cold placard
pressu re after a vehicle has not been driven for more than pressu re in ord er for the “Tire Pressu re Monitoring
three hou rs, or driven less than 1 mile (1.6 km) after a Telltale Light” to be turned OFF. The system will auto-
three-hou r period . Refer to “Tires — General Inform a- matically update and the “Tire Pressu re Monitoring
tion ” in this section for inform ation on how to prop erly Telltale Light” will extingu ish once the updated tire
inflate the veh icle’s tires. The tire pressu re will also pressu res have been received . The vehicle may need to be
increase as the vehicle is driven; this is norm al and there driven for up to 20 minu tes above 15 mph (25 km/ h) to
shou ld be no adjustm ent for this increased pressu re.
receive this inform ation.
The TPMS will warn the driver of a low tire pressu re if For exam ple, you r vehicle may have a recom mend ed
the tire pressu re falls below the low pressu re warning cold (parked for more than three hou rs) air pressu re of
threshold for any reason, inclu ding low tem peratu re 35 psi (241 kPa). If the ambient tem peratu re is 68°F (20°C)
effects, or natu ral pressu re loss throu gh the tire.
and the measu red tire pressu re is 30 psi (207 kPa), a
tem peratu re drop to 20°F (-7°C) will decrease the tire
pressu re to approxim ately 26 psi (179 kPa). This tire
pressu re is sufficiently low enou gh to turn ON the “Tire
Pressu re Monitoring Telltale Light.” Driving the vehicle
may cause the tire pressu re to rise to approxim ately
The TPMS will continu e to warn the driver of low tire
pressu re as long as the cond ition exists, and will not turn
off until the tire pressu re is at or above recom mend ed
| Categories | Jeep Manuals, Jeep Wrangler Manuals |
|---|---|
| Model Year | 2009 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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