Service bulletin 08-048-13

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	10136901
Published by NHTSA	2018-05-21
Manufacturer's number	08-048-13
Manufacturer's date	2013-06-28
NHTSA component	ENGINE AND ENGINE COOLING

NHTSA's summary

Flash: Coolant Gauge Reads Incorrectly Too High This Bulletin involves updating the Instrument Panel Cluster (IPC) software. A customer may note that the coolant temperature gauge looks like the engine temperature is high, the needle on the gauge will be at the 3/4 mark. On further inspection the technician will find the vehicle is running at normal temperature 228 to 230F/109-110C. After the cluster is updated the Temperature gauge will read at the 1/2 way mark, at normal operating temperature.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
RAM 1500	2013

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
13V177000	2013-05-07. ENGINE AND ENGINE COOLING

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
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