NHTSA Office of Defects Investigation

Preliminary Evaluation PE15-014: Inconsistent Throttle Control

  • Closed

NHTSA's Office of Defects Investigation opened Preliminary Evaluation PE15-014 on April 20, 2015 and closed it on November 13, 2015. NHTSA's investigations file lists the 2012–2014 Honda GL1800 for it.

Updated daily from NHTSA's investigations file

Key facts

NHTSA number
PE15-014 (also written PE15014)
Investigation type
Preliminary Evaluation The first stage of most defect investigations: NHTSA's Office of Defects Investigation gathers basic information about a possible safety defect, including from the manufacturer.
Status
Closed November 13, 2015
Opened
Closed
Vehicle or equipment manufacturer
Honda (American Honda Motor Co.)
Component
Vehicle Speed Control
Vehicles and equipment
2012–2014 Honda GL1800

A recall appears here only when NHTSA's investigations file links one to the investigation; NHTSA's summary or record can name others.

NHTSA's summary

As NHTSA's Office of Defects Investigation wrote it for Preliminary Evaluation PE15-014.

This PE was opened after NHTSA received 10 owner complaints alleging vehicle control was compromised due to inconsistent throttle control in MY 2012-14 Honda GL1800 motorcycles.

Typically during the first five minutes of operation (cold engine), riders would experience a pronounced engine stumble when operating the bike at low speeds and minimal throttle applications.

Riders were concerned that this scenario would result in a crash if the stumble were to occur while making a sharp turn at low speed.

Since opening this investigation we discussed the issue with Honda motorcycle dealers and service personnel and subject vehicle owners / complainants.

We test rode one complaint GL1800 and monitored web forum activity.

Based on the information gathered, the issue of low speed engine stumble in these motorcycles does not appear to jeopardize safety.

The absence of crashes in a population of vehicles with up to 4 years in service indicates riders are able to instinctively correct for any control issue that may accrue from a low speed cold engine stumble.

In the absence of a actionable defect trend, we are closing this PE.We continue to monitor complaints and other information sources for any data that may alter this finding.

If such information is found, we will respond accordingly.

The ODI reports cited above can be reviewed at: http://www-odi.nhtsa.dot.gov/owners/SearchNHTSAID using the following complaint identification numbers: 10785837,10783109,10781852,10760402,10670092,10662128,10653041,10643482,10641998,10639635,10639538,10639483,10633401,10633110,10632624,10632569,10631910,10621114,10577493,10572733,10550566,10549745,10548741,10548568,10546436,10532817,10532620,10532347,10532553,10532249,10531538,10523914,10523890,10523515,10523017,10512486

Vehicles and equipment listed for this investigation

NHTSA's investigations file lists these vehicles and equipment for Preliminary Evaluation PE15-014. A listed model year means only that an investigation names it; it says nothing about any particular vehicle. Model years with a try.vin recall page link to that page's NHTSA investigations section.

What an NHTSA investigation is

NHTSA's Office of Defects Investigation (ODI) looks into possible safety defects in vehicles and equipment, often after owner complaints. An investigation usually starts as a Preliminary Evaluation, or as a Recall Query when it concerns whether an existing recall covers the right vehicles or fixes the problem, and ODI can upgrade it to a more detailed Engineering Analysis. A Defect Petition asks NHTSA to open an investigation, and Audit and Equipment Queries are administrative investigations into whether companies complied with federal vehicle safety requirements, such as reporting, recall and certification rules.

An open investigation is not a finding that a safety defect exists, and NHTSA can close one without a recall.

To see whether a specific vehicle has an open recall, enter its VIN at nhtsa.gov/recalls.

Honda VIN check: decode a VIN to see its year, make and model.

Sources

NHTSA's investigation record for PE15-014

Investigation details come from NHTSA's investigations file, which try.vin imports once a day. The investigation types are described from the U.S. Department of Transportation Inspector General's May 2023 report on NHTSA's Office of Defects Investigation, NHTSA's petition rules (49 CFR Parts 552 and 557) and NHTSA's Office of Defects Investigation procedures. How try.vin reads NHTSA investigations.