GMC Sierra Quiz
Instruments and Controls

Engine Coolant Temperature Gauge

In this manual: Instruments and Controls
Introduction — 6In Brief — 46Seats and Restraints — 48Storage — 7Instruments and Controls — 75Lighting — 22Infotainment System — 22Climate Controls — 7Driving and Operating — 77Vehicle Care — 79Service and Maintenance — 26Technical Data — 8Customer Information — 25OnStar — 25Keys, Doors, and Windows — 38
~1min read
GMS Sierra: Engine Coolant Temperature Gauge. Metric
GMS Sierra: Engine Coolant Temperature Gauge. English

This gauge shows the engine coolant temperature.

It also provides an indicator of how hard the vehicle is working. During a majority of the operation, the gauge reads 100 °C or less.

If pulling a load or going up hills, it is normal for the temperature to fluctuate and go over the 113 °C mark. If the gauge reaches the 125 °C mark, it indicates that the cooling system is working beyond its capacity.

See Engine Overheating on page 10‑23.

If the vehicle is a hybrid, see the hybrid supplement for more information.

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A quick GMC Sierra quiz: every answer comes with an explanation and a link to the manual page.