OnStar Vehicle Diagnostics can perform a vehicle check every month. It will check
the engine, transmission, antilock brakes, and other major vehicle systems. It also
checks the tire pressures, if the vehicle is equipped with the Tire Pressure Monitoring
System. If an On-Demand Diagnostics check is needed, press
, and an Advisor can run a check.
Connections
OnStar Additional InformationCruise Control
If equipped with cruise control:
Press to turn the cruise control
system on and off. A white indicator comes on in the instrument cluster.
RES/+: If there is a set speed in memory, press briefly to resume to that speed
or press and hold to accelerate. If cruise control is already active, u ...
TPMS Malfunction Light
The TPMS will not function properly if one or more of the TPMS sensors are missing
or inoperable. When the system detects a malfunction, the low tire warning light
flashes for about one minute and then stays on for the remainder of the ignition
cycle. The malfunction light comes on at each ign ...
Introduction
The names, logos, emblems, slogans,
vehicle model names, and vehicle body designs appearing in this manual including,
but not limited to, GM, the GM logo, CHEVROLET, the CHEVROLET Emblem, and SPARK
are trademarks and/or service marks of General Motors LLC, its subsidiaries, affiliates,
or li ...